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KENTUCKY MONTHLY AND ANNUAL CLIMATE SUMMARY FOR -- 2011 By: Tom Priddy--UK Agricultural Weather Center * Based on Preliminary Data. Graphs of Kentucky Monthly Temperature and Rainfall available at: http://wwwagwx.ca.uky.edu/climgraphs/ and weekly graphs available within the UKAWC Kentucky Weather Information Web site. Sources: UKAWC, NCDC and Midwest Regional Climate Center2011 is the wettest year on record for the Bluegrass state. The wettest period was April and May, which was the wettest 2 month stretch on record. Most of the rainfall came in April, which was the wettest April on record, and record flooding occurred as a result on the Ohio River and its tributaries in western portions of the state. Despite the record wet spring, the Commonwealth experienced significant agricultural drought over the summer and into fall. Highly scattered rainfall, oppressive heat, and high humidity stressed livestock and crops. By the end of August over 70% of the state was abnormally dry. September brought above normal rainfall and below normal temperatures to much of the state, however far western portions of the state stayed hot and dry. Drought conditions gradually dissipated through October and after an abnormally wet November all abnormally dry areas of the state were gone. In fact it was the 7th wettest November on record, followed by a December that has been abnormally wet thus far. Listed below are the top 5 years record rainfall for the state as a whole. The total for 2011 is preliminary through Dec. 31st. Ranking of Kentucky Top 5 Yearly Rainfall Totals Rank Value Year --------------- 1 64.34 2011* 2 62.93 1950 3 62.86 1979 4 58.88 1989 5 57.82 1935 * = preliminary For Lexington, rainfall since Jan 1, the total to date was 66.35 inches, which was 21.18 inches above normal. Last year, rainfall todate for Lexington was only 38.04 inches. For Louisville, the yerarly total was 68.02; Jackson 60.01 and London was 61.30. For Paducah, rainfall since Jan 1, the total to date was 74.85 inches, which was 25.77 inches above normal. Last year (2010), rainfall to-date for Lexington was only 38.04 inches. Overall for agriculture it was a tough year. Planting and field work was delayed by weeks due to the record wet April and May. Then the hot and dry summer stressed both livestock and crops. --- Kentucky Climate Summary For the Period December 2011 Above Normal Temperatures and Above Normal Rainfall: December 2011 was a mild month but the story was the above normal rainfall which placed the entire state as the wettest year on record for over the past 100 years. Listed below are the top 5 years record rainfall for the state as a whole. Several weather stations in southeast Kentucky received over 15 inches for the month. For the entire year the whole state was over 15 inches above normal. The total for 2011 is preliminary through Dec. 31st. Ranking of Kentucky Top 5 Yearly Rainfall Totals Rank Value Year --------------- 1 64.34 2011* 2 62.93 1950 3 62.86 1979 4 58.88 1989 5 57.82 1935 * = preliminary Temperatures for the period averaged 42 degrees across the state which was 4 degrees warmer than normal. High temperatures averaged from 50 in the West to 52 in the East. Departure from normal high temperatures ranged from 2 degrees warmer than normal in the West to 4 degrees warmer than normal in the East. Low temperatures averaged from 34 degrees in the West to 34 degrees in the East. Departure from normal low temperature ranged from 4 degrees warmer than normal in the West to 6 degrees warmer than normal in the East. The extreme high temperature for the period was 69 at BOONEVILLE 2S and the extreme low was 12 at MONTICELLO AWOS. Precipitation (liq. equ.) for the period totaled 5.59 inches statewide which was 1.14 inches above normal and 126% of normal. Precipitation totals by climate division, West 6.27 inches, Central 4.69 inches, Bluegrass 5.42 inches and East 5.96 inches, which was 1.39, -0.13, 1.55 and 1.73 inches respectively from normal. By station, precipitation totals ranged from a low of 2.68 inches at MOREHEAD 4NE to a high of 15.21 inches at MIDDLESBORO AWOS. --- Kentucky Climate Summary For November 2011 Above Normal Temperature and Above Normal Precipitation Preliminary numbers show that this past November was the 7th wettest November on record. The past month was also the 2nd, 3rd, 4th, 5th, and 7th wettest November on record for Lexington, Paducah, Frankfort, Louisville, and Bowling Green respectively. The month started off mostly dry with many locations having received less than an inch by mid month. However; 3 slow moving systems dumped heavy rainfall on the state for the last half of the month. The heaviest rain fell in the western and central parts of the state from these systems. Temperatures were also above normal for the month, but only by a small amount. Low temperatures were the main reason it was an above normal November. This was mainly because cloud cover from the 3 heavy rainfall systems kept temperatures from dropping to low overnight. Although, temperatures this November did get cold enough for much of the state to see some light flurries late in the month. Temperatures for the period averaged 51 degrees across the state which was 3 degrees warmer than normal and 6 degrees cooler than the previous period. High temperatures averaged from 60 in the West to 61 in the East. Departure from normal high temperatures ranged from near normal in the West to 2 degrees warmer than normal in the East. Low temperatures averaged from 44 degrees in the West to 39 degrees in the East. Departure from normal low temperature ranged from 5 degrees warmer than normal in the West to 4 degrees warmer than normal in the East. The extreme high temperature for the period was 78 degrees at Barren River Lake and the extreme low was 18 degrees at Corners. Precipitation for the period totaled 7.83 inches statewide which was 3.97 inches above normal and 203% of normal. Precipitation totals by climate division, West 9.30 inches, Central 8.60 inches, Bluegrass 7.25 inches and East 6.16 inches, which was 4.84, 4.54, 3.87 and 2.62 inches above normal. By station, precipitation totals ranged from a low of 3.29 inches at Big Sandy to a high of 11.53 inches at Hopkinsville. Summarized and averaged data for the period 20111101 to 20111130(Last 30 Days) (Not for Legal purposes. Departure from Norms based on climate divisional Averages) AIR TEMPERATURE PRECIPITATION ExtremeTemp STATION MAX DEV MIN DEV AVR DEV TOTAL DEV %NORM HI LO -------------------------------------------------------------------------------- WEST(CD1) 60 1 43 5 51 2 9.01 4.49 199 78 21 CENTRAL(CD2) 61 3 43 6 52 4 8.44 4.33 205 77 19 BLUEGRASS(CD3) 59 2 42 5 50 3 7.18 3.77 211 74 20 EAST(CD4) 61 2 41 7 51 4 5.91 2.33 165 75 16 -------------------------------------------------------------------------------- STATE 60 2 42 6 51 3 7.63 3.73 195 78 16 --- Kentucky Climate Summary For October 2011 Below Normal Temperature and Below Normal Rainfall For the state as a whole October was slightly below normal for rainfall. However; the eastern half of the state received about 1.5 to 2 inches more rainfall than the western half. The major difference in rainfall came from a low pressure system that moved in from the south about mid way through the month. This dumped heavy rainfall on the eastern half of the state. Temperatures for the month were just below normal, with the first widespread frost having occurred on the morning of the 2nd. A widespread killing frost did not occur until the end of the month. Temperatures for the period averaged 56 degrees across the state which was 2 degrees cooler than normal. High temperatures averaged from 70 in the West to 67 in the East. Departure from normal high temperatures ranged from 2 degrees cooler than normal in the West to 3 degrees cooler than normal in the East. Low temperatures averaged from 46 degrees in the West to 45 degrees in the East. Departure from normal low temperature ranged from 1 degree cooler than normal in the West to 2 degrees warmer than normal in the East. The extreme high temperature for the period was 86 degrees at Mayfield and the extreme low was 24 degrees at Cynthiana. Rainfall for the period totaled 2.83 inches statewide which was 0.47 inches below normal and 88% of normal. Rainfall totals by climate division, West 1.85 inches, Central 1.99 inches, Bluegrass 3.63 inches and East 3.82 inches, which was -1.54, -1.30, 0.64 and 0.72 inches respectively from normal. By station, rainfall totals ranged from a low of 1.16 inches at Bowling Green to a high of 5.03 inches at Pikeville. Summarized and averaged data for the period 20111001 to 20111031(Last 31 Days) (Not for Legal purposes. Departure from Norms based on climate divisional Averages) AIR TEMPERATURE PRECIPITATION ExtremeTemp STATION MAX DEV MIN DEV AVR DEV TOTAL DEV %NORM HI LO -------------------------------------------------------------------------------- WEST(CD1) 70 -2 45 -2 58 -1 1.85 -1.66 53 88 27 CENTRAL(CD2) 68 -2 45 -1 56 -2 1.99 -1.41 59 86 26 BLUEGRASS(CD3) 66 -3 44 -2 55 -2 3.65 0.56 118 83 24 EAST(CD4) 67 -3 45 2 56 -1 3.82 0.61 119 84 27 -------------------------------------------------------------------------------- STATE 68 -2 45 0 56 -2 2.83 -0.47 86 88 24 --- Kentucky Climate Summary For September 2011 Below Normal Temperature and Above Normal Rainfall September was the first month with below normal temperatures since January 2011, with every week having had average temperatures below normal. However; the month started off with the same summer heat we experienced in June, July and August, with highs in the upper 90s an even 100s the first few days. These highs did not last long, as the dry and hot weather of summer gave way to a wet and cool pattern. The change in temperature was so abrupt that a record high of 102 on the 3rd in Louisville occurred and just 3 days later on the 6th a record low high temperature of 66 was set. This was mostly due to the remnants of Tropical Storm Lee, which set up over the region. Lee’s remnants also dropped heavy rainfall everywhere but western parts of the state. Heavy rainfall also came late in the month from a cold front and deep cut off low pressure set up to the north, which dumped several inches of rainfall across the Commonwealth over 2 days. Preliminary numbers show this September to be the 11th wettest on record. Temperatures for the period averaged 66 degrees across the state which was 3 degrees cooler than normal. High temperatures averaged from 77 in the West to 74 in the East. Departure from normal high temperatures ranged from 5 degrees cooler than normal in the West to 6 degrees cooler than normal in the East. Low temperatures averaged from 57 degrees in the West to 57 degrees in the East. Departure from normal low temperature ranged from 1 degree cooler than normal in the West to 2 degrees warmer than normal in the East. The extreme high temperature for the period was 102 degrees at Louisville and the extreme low was 34 degrees at Pikeville. Rainfall for the period totaled 5.52 inches statewide which was 2 inches above normal and 157% of normal. Rainfall totals by climate division, West 5.25 inches, Central 5.75 inches, Bluegrass 5.91 inches and East 5.18 inches, which was 1.74, 1.88, 2.69 and 1.7 inches above normal. By station, rainfall totals ranged from a low of 2.63 inches at Big Sandy to a high of 8.86 inches at Burlington. Summarized and averaged data for the period 20110901 to 20110930(Last 30 Days) (Not for Legal purposes. Departure from Norms based on climate divisional Averages) AIR TEMPERATURE PRECIPITATION ExtremeTemp STATION MAX DEV MIN DEV AVR DEV TOTAL DEV %NORM HI LO -------------------------------------------------------------------------------- WEST(CD1) 76 -6 56 -2 66 -4 5.22 1.70 148 101 46 CENTRAL(CD2) 74 -6 56 -1 65 -3 5.75 1.88 149 102 45 BLUEGRASS(CD3) 72 -7 55 -1 64 -4 5.91 2.69 184 100 42 EAST(CD4) 73 -7 56 1 64 -3 5.17 1.69 149 98 34 -------------------------------------------------------------------------------- STATE 74 -6 56 -0 65 -3 5.51 1.99 156 102 31 NWS departure from normal precipitation map for September 2011 available here. --- Kentucky Climate Summary For August 2011 Near Normal Temperature and Below Normal Rainfall Preliminary numbers show that this August was the 17th driest on record. Most all rainfall for the month came in scattered showers and thunderstorms, which caused rainfall totals to vary greatly from location to location. Every week of August recorded below normal rainfall. Combined with the dry end of July, drought conditions expanded quickly from west to east across the Commonwealth. From the beginning of August to the end, drought conditions have gone from nearly no coverage to over 70% coverage of the state. Most of that area is abnormally dry; however 31% of the state is in moderate drought and 4% has gone into severe drought. This of course negatively affected agriculture in the state. Combined with the late start to planting and dry weather, corn and soybeans are behind the 5 year average of where they should be in every stage of growth. Pond levels are low and low relative humidity late in the month slowed curing tobacco. Temperature wise the state got some relief from the previous summer months, with near seasonal normal temperature almost every week. Most locations such as Louisville, Lexington, Paducah, and London were right around their average days at or above 90 degrees, which was not the case just one month ago. However; Bowling Green did have 25 days at or above the 90 degree mark, well above their normal for August. Temperatures for the period averaged 76 degrees across the state which was near normal. High temperatures averaged from 89 in the West to 85 in the East. Departure from normal high temperatures ranged from 1 degree warmer than normal in the West to 1 degree cooler than normal in the East. Low temperatures averaged from 67 degrees in the West to 64 degrees in the East. Departure from normal low temperature ranged from 1 degree warmer than normal in the West to 2 degrees warmer than normal in the East. The extreme high temperature for the period was 104 at Poplar Bluff and the extreme low was 46 at Richmond. Rainfall for the period totaled 2.19 inches statewide which was 1.6 inches below normal and 58% of normal. Rainfall totals by climate division, West 2.20 inches, Central 1.47 inches, Bluegrass 2.49 inches and East 2.60 inches, which was 1.32, 2.3, 1.28 and 1.5 inches below normal. By station, rainfall totals ranged from a low of 0.41 inches at Liberty to a high of 4.29 inches at Lexington. Summarized and averaged data for the period 20110801 to 20110831(Last 31 Days) (Not for Legal purposes. Departure from Norms based on climate divisional Averages) AIR TEMPERATURE PRECIPITATION ExtremeTemp STATION MAX DEV MIN DEV AVR DEV TOTAL DEV %NORM HI LO -------------------------------------------------------------------------------- WEST(CD1) 89 1 67 1 78 1 2.20 -1.32 63 104 54 CENTRAL(CD2) 88 1 66 1 77 1 1.47 -2.30 39 103 51 BLUEGRASS(CD3) 86 1 64 0 75 0 2.49 -1.28 66 95 46 EAST(CD4) 85 -1 64 2 75 1 2.60 -1.50 63 97 46 -------------------------------------------------------------------------------- STATE 87 0 65 1 76 0 2.19 -1.60 58 104 46 NWS departure from normal precipitation map for August 2011 available here. --- Kentucky Climate Summary For July 2011 Above Normal Temperature and Below Normal Rainfall Preliminary numbers show that July 2011 was tied for the 5th warmest July on record. High temperatures more often than not were in the 90s, in fact Louisville, Lexington, Bowling Green and Paducah all were well above the normal amount of days above the 90 degree mark. In addition to the heat, the humidity was particularly oppressive. On the 11th and 12th, dew point readings (a measure of moisture in the air) soared into the lower 80s. Lexington recorded its highest dew point on record: 81 degrees. This stressed both crops and livestock. Rainfall for the month was scattered across the Commonwealth, with stations showing a wide range of totals for the month. Some areas were missed by the scattered showers and thunderstorms so much that they became abnormally dry, and some locations entered into agricultural drought. Whether the month was dry or wet, however, depended greatly on how lucky you were to receive sporadic afternoon thunderstorms. There were several days when isolated thunderstorms would drench one town with an inch or two of rain and leave the next town down the road completely dry. An excellent example of this was in Jefferson County, Kentucky. A rainfall observing site on the far east side of the county reported 1.04" of rain for the month of July. Bowman Field, just ten miles to the southwest, got 6.18". Proceeding further, a mere five miles southwest of Bowman Field, Louisville International Airport recorded only 2.35". Continuing on, the NWS office, just six miles southeast of Louisville International, was drenched with 6.69"! Temperatures for the period averaged 80 degrees across the state which was 4 degrees warmer than normal and 6 degrees warmer than the previous period. High temperatures averaged from 91 in the West to 87 in the East. Departure from normal high temperatures ranged from 2 degrees warmer than normal in the West to 0 degrees from normal in the East. Low temperatures averaged from 72 degrees in the West to 69 degrees in the East. Departure from normal low temperature ranged from 5 degrees warmer than normal in the West to 6 degrees warmer than normal in the East. The extreme high temperature for the period was 100 degrees at Poplar Bluff and the extreme low was 56 degrees at Paintsville. Rainfall for the period totaled 3.91 inches statewide which was 0.29 inches below normal and 93% of normal. Rainfall totals by climate division, West 3.20 inches, Central 3.76 inches, Bluegrass 3.42 inches and East 5.27 inches, which was -0.90, -0.49, -0.70 and 0.92 inches respectively from normal. By station, rainfall totals ranged from a low of 0.67 inches at Russellville to a high of 9.40 inches at Morehead. Summarized and averaged data for the period 20110702 to 20110731(Last 30 Days) (Not for Legal purposes. Departure from Norms based on climate divisional Averages) AIR TEMPERATURE PRECIPITATION ExtremeTemp STATION MAX DEV MIN DEV AVR DEV TOTAL DEV %NORM HI LO -------------------------------------------------------------------------------- WEST(CD1) 91 2 72 5 81 3 3.20 -0.90 78 100 64 CENTRAL(CD2) 90 2 71 5 80 3 3.76 -0.49 88 98 62 BLUEGRASS(CD3) 89 3 70 5 79 3 3.42 -0.70 83 97 61 EAST(CD4) 87 0 69 6 78 3 5.27 0.92 121 97 56 -------------------------------------------------------------------------------- STATE 89 2 70 5 80 4 3.91 -0.29 93 100 56 NWS departure from normal precipitation map for July 2011 available here. Click here for the monthly summary (Ky mesonet + NWS weather stations). --- Kentucky Climate Summary For June 2011 Above Normal Temperature and Above Normal Rainfall For June 2011 the Commonwealth experienced a wetter than normal month. Preliminary numbers show that this June was tied for the 18th wettest June, coming after the 11h wettest May and the wettest April on record. Preliminary numbers also show that all together this past April, May, and June totaled 24.2 inches of rainfall. This made that 3 month stretch the wettest April through June on record by almost 3 inches, and was the 2nd only to the 3 month period starting November 1936 to January 1937 for wettest 3 month stretch on record. Since the beginning of the year the state has received 36.67 inches, which is the 3rd wettest January through June on record. June itself started off dry and hot, totaling less than an inch of rainfall nearly midway through the month and highs topping out well into the 90s almost everyday. Conditions changed quickly over the next two weeks however; with over 4 inches of rain falling and temperatures right at or just below seasonal normals. Temperatures for the period averaged 74 degrees across the state which was 2 degrees warmer. High temperatures averaged from 87 in the West to 83 in the East. Departure from normal high temperatures ranged from 1 degree warmer than normal in the West to 0 degrees from normal in the East. Low temperatures averaged from 68 degrees in the West to 63 degrees in the East. Departure from normal low temperature ranged from 5 degrees warmer than normal in the West to 4 degrees warmer than normal in the East. The extreme high temperature for the period was 102 degrees at Owensboro and the extreme low was 49 degrees at Morehead. Rainfall for the period totaled 5.29 inches statewide which was 0.87 inches above normal and 120% of normal. Rainfall totals by climate division, West 5.64 inches, Central 5.43 inches, Bluegrass 5.13 inches and East 4.98 inches, which was 1.33, 1, 0.7 and 0.48 inches above normal. By station, rainfall totals ranged from a low of 1.16 inches at Poplar Bluff to a high of 11.32 inches at Middlesboro. NWS departure from normal precipitation map for June 2011 available here. NWS departure from normal precipitation map for April through June 2011. here. NWS departure from normal precipitation map for January through June 2011 here. --- Kentucky Climate Summary For May 2011 Near Normal Temperature and Above Normal Rainfall Once again the Commonwealth experienced a wet month. May 2011 was the 11th wettest May on record. Combined with April 2011, rainfall for both months together was the wettest on record, totaling 18.91 inches. For this past May itself, conditions started off wet. However; for a 2 week period in the middle of the month rainfall was just below normal before wet conditions returned for the last full week. Temperature for the month was near normal, with the last several days ending on a hot note. Low temperatures were above normal across the state, with no killing frost during the month. Even combined with April 2011, the only killing frost occurred in far eastern parts of the state. Temperatures for the period averaged 64 degrees across the state which was 0 degrees from normal. High temperatures averaged from 75 in the West to 73 in the East. Departure from normal high temperatures ranged from 3 degrees cooler than normal in the West to 3 degrees cooler than normal in the East. Low temperatures averaged from 57 degrees in the West to 54 degrees in the East. Departure from normal low temperature ranged from 2 degrees warmer than normal in the West to 5 degrees warmer than normal in the East. The extreme high temperature for the period was 94 degrees at Louisville and the extreme low was 30 degrees at Frankfort. Rainfall for the period totaled 6.87 inches statewide which was 2.11 inches above normal and 144% of normal. Rainfall totals by climate division, West 7.73 inches, Central 7.24 inches, Bluegrass 6.84 inches and East 5.67 inches, which was 2.8, 2.27, 2.34 and 1.02 inches above normal. By station, rainfall totals ranged from a low of 3.92 inches at Middlesboro to a high of 9.12 inches at Marion. NWS departure from normal precipitation map for May 2011 available here. --- Kentucky Climate Summary For April 2011 Above Normal Temperature and Above Normal Rainfall April 2011 was the wettest April ever recorded in the Commonwealth. The total rainfall nearly doubled the previous record for April set back in 1972. Most all locations across the state experienced their wettest April ever, and Frankfort and Cave Run even experienced their wettest month on record. Rainfall was heaviest in Western, Central, and Bluegrass regions of the state, especially along the Ohio River. The heavy rain caused major and even record flooding on the Ohio River and its tributaries in the western portion of the state. Fields were soaked nearly all month, making it nearly impossible for planting. Temperatures were also above normal as the southerly flow that kept the state wet also kept it warmer than normal. However; the first few days of the month the Commonwealth did experience some sub freezing low temperatures. Temperatures for the period averaged 60 degrees across the state which was 4 degrees warmer than normal. High temperatures averaged from 72 in the West to 72 in the East. Departure from normal high temperatures ranged from 3 degrees warmer than normal in the West to 4 degrees warmer than normal in the East. Low temperatures averaged from 52 degrees in the West to 49 degrees in the East. Departure from normal low temperature ranged from 6 degrees warmer than normal in the West to 9 degrees warmer than normal in the East. The extreme high temperature for the period was 90 degrees at Booneville and the extreme low was 22 degrees at Cynthiana. Rainfall for the period totaled 12.04 inches statewide which was 7.7 inches above normal and 277% of normal. Rainfall totals by climate division, West 13.98 inches, Central 12.36 inches, Bluegrass 12.64 inches and East 9.18 inches, which was 9.06, 7.93, 8.68 and 5.13 inches above normal. By station, rainfall totals ranged from a low of 5.75 inches at Pikeville to a high of 16.14 inches at Nolin Lake. NWS departure from normal precipitation map for April 2011 available here. --- Kentucky Climate Summary For March 2011 Above Normal Temperature and Above Normal Precipitation This past March started off wet. Heavy rains the first two weeks, combined with the wet ending of February caused flooding across the state. The surplus of rainfall in the front half of the month was enough to end all drought conditions across the Commonwealth. The second half of the month precipitation slowed down to around and just below normal. Temperatures for the majority of March were right around normal; however the middle of the month up to the start of Spring the state experienced some well above normal temperatures. For around a week’s time highs were topping out in the 70s and even 80s, before more seasonable temperatures moved back in for the last week and a half of the month. Temperatures for the period averaged 49 degrees across the state which was 2 degrees warmer than normal. High temperatures averaged from 58 in the West to 57 in the East. Departure from normal high temperatures ranged from 2 degrees cooler than normal in the West to 2 degrees cooler than normal in the East. Low temperatures averaged from 42 degrees in the West to 39 degrees in the East. Departure from normal low temperature ranged from 5 degrees warmer than normal in the West to 6 degrees warmer than normal in the East. The extreme high temperature for the period was 83 degrees at Fort Campbell and the extreme low was 21 degrees at Vanceburg. Precipitation (liq. equ.) for the period totaled 4.58 inches statewide which was 0.27 inches above normal and 106% of normal. Precipitation totals by climate division, West 4.86 inches, Central 4.56 inches, Bluegrass 4.24 inches and East 4.68 inches, which was 0.27, 0.02, 0.35 and 0.46 inches above normal. By station, precipitation totals ranged from a low of 2.08 inches at Owensboro to a high of 6.77 inches at Barbourville. NWS departure from normal precipitation map for March available here. --- Kentucky Climate Summary For February 2011 Above Normal Temperature and Above Normal Precipitation February 2011 was the first month to have above normal precipitation since November 2010, and the wettest month since May 2010. More precipitation occurred in February than both January and December combined. The month did not start off wet, having had a near normal week and two below normal precipitation weeks. However; two strong low pressure systems coming in late in the month dumped heavy rainfall all across the Commonwealth. Both systems brought flooding and the year’s first reports of severe weather. These heavy rainfall systems put a significant dent in the drought situation across the state. Besides one bitterly cold week, the rest of February was either near normal or well above normal for temperature. Precipitation amounts totaled enough to be in the top 15 wettest February’s, while average temperature was in the top 25 warmest. Temperatures for the period averaged 40 degrees across the state which was 2 degrees warmer than normal. High temperatures averaged from 48 in the West to 51 in the East. Departure from normal high temperatures ranged from 1 degree cooler than normal in the West to 2 degrees warmer than normal in the East. Low temperatures averaged from 32 degrees in the West to 32 degrees in the East. Departure from normal low temperature ranged from 3 degrees warmer than normal in the West to 6 degrees warmer than normal in the East. The extreme high temperature for the period was 74 degrees at Benton and the extreme low was -10 degrees at Bowling Green. Precipitation (liq. equ.) for the period totaled 5.61 inches statewide which was 1.69 inches above normal and 143% of normal. Precipitation totals by climate division, West 5.76 inches, Central 6.36 inches, Bluegrass 5.88 inches and East 4.44 inches, which was 1.40, 2.11, 2.48 and 0.75 inches above normal. By station, precipitation totals ranged from a low of 2.03 inches at Pikeville to a high of 7.84 inches at Campbellsville. NWS departure from normal precipitation map for February available here. --- Kentucky Climate Summary For January 2011 Below Normal Temperature and Below Normal Precipitation The first day and the last couple days of January had above normal temperatures; however this was not the case for the rest of the month. The weeks in between averaged about 6 degrees below normal, during which time livestock cold stress reached the emergency level multiple times. Precipitation was below normal for the month, but widespread snowfall events occurred several times for a snowier than normal January. Most snow events were moderate, ranging from a dusting up to 4 or 5 inches with isolated areas having received some higher totals. Some statewide snow accumulations for the month are as follows; Jackson 13.6 inches, Lexington 11.4 inches, Louisville 10 inches, Bowling Green 7 inches, and Paducah 4.3 inches. All of these locations were above normal for the month, with Louisville and Lexington even doubling their average. Snow totals including the month December are as follows; Jackson 32.1 inches, Lexington 24.1 inches, Louisville 16.3 inches, Bowling Green 15.3 inches, and Paducah 9.9 inches. All of these locations except Pahducah more than double their averages. By month’s end around 60% of the state still remains abnormally dry with around 7% still in severe drought. Overall this past January was tied for the 20th coldest and was the 18th driest on record. Temperatures for the period averaged 30 degrees across the state which was 3 degrees cooler than normal. High temperatures averaged from 38 in the West to 38 in the East. Departure from normal high temperatures ranged from 5 degrees cooler than normal in the West to 6 degrees cooler than normal in the East. Low temperatures averaged from 17 degrees in the West to 24 degrees in the East. Departure from normal low temperature ranged from 8 degrees cooler than normal in the West to 1 degree warmer than normal in the East. The extreme high temperature for the period was 66 degrees at Barbourville and the extreme low was -9 degrees at Harrison County. Precipitation (liq. equ.) for the period totaled 2.08 inches statewide which was 1.54 inches below normal and 58% of normal. Precipitation totals by climate division, West 1.84 inches, Central 2.12 inches, Bluegrass 1.78 inches and East 2.60 inches, which was 1.96, 1.74, 1.34 and 1.08 inches below normal. By station, precipitation totals ranged from a low of 0.63 inches at Poplar Bluff to a high of 3.80 inches at Booneville. Dewpoint temperatures for the state averaged near 23.2 degrees. NWS departure from normal precipitation map for January available here.
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