...Climate Normals...Means and Extremes for December... ...Jackson Kentucky (JKL)... Temperature data... Average maximum........... 46.0 Average minimum........... 30.2 Average monthly........... 38.1 Highest................... 79 on the 3rd in 1982 Lowest.................... -13 on the 22nd in 1989 Low maximum.............. 4 on the 22nd in 1989 High minimum.............. 62 on the 3rd in 1982/ 4th in 1983 Normal days with high 90 or above..... 0.0 Normal days with high 32 or below..... 4.0 Normal days with low 32 or below..... 17.9 Normal days with low 0 or below..... 0.3 Degree days (base 65)..... Heating Cooling Monthly average........... 834 1 Greatest monthly.......... 1179 in 1989 18 in 1982 Least monthly............. 548 in 1984 0 in numerous years Precipitation data... Monthly average........... 4.18 inches Wettest................... 12.97 inches in 1990 Driest.................... 1.74 inches in 1985 Greatest 24 hour.......... 3.43 inches on the 17th-18th in 1990 Average days of thunder... 0.4 Average days of dense fog. 4.5 Average snowfall.......... 4.9 inches Greatest snowfall......... 18.5 inches in 2010 Greatest 24 hour snowfall. 11.6 inches on the 18th-19th in 2009 Greatest snow depth....... 10 inches in 2009 ...London Kentucky (LOZ)... Temperature data... Average maximum........... 47.6 Average minimum........... 29.4 Average monthly........... 38.5 Highest................... 78 on the 2nd in 1982 Lowest.................... -17 on the 13th in 1962 Low maximum............... 7 on the 12th in 1962/25th in 1983/22nd in 1989 High minimum.............. 61 on the 25th in 1982/ 6th in 1998 Normal days with high 90 or above..... 0.0 Normal days with high 32 or below..... 3.3 Normal days with low 32 or below..... 19.0 Normal days with low 0 or below..... 0.3 Degree days (base 65)..... Heating Cooling Monthly average........... 822 1 Greatest monthly.......... 1149 in 1963 & 1989 18 in 1982 Least monthly............. 544 in 1984 0 in numerous years Precipitation data... Monthly average........... 4.24 inches Wettest................... 12.76 inches in 1990 Driest.................... 0.41 inches in 1965 Greatest daily rain....... 3.55 inches on the 8th in 1978 Average snowfall.......... 1.1 inches Greatest snowfall......... 13.5 inches in 1963 Greatest daily snowfall... 7.6 inches on the 31st in 1970 ***Snowfall records for London were kept between 1954 and 1996*** The latest climate outlook for December indicates that eastern Kentucky will be in a weather pattern more conducive to near normal precipitation and slightly above normal temperatures. For more information on climate outlooks try this internet address: http://www.cpc.ncep.noaa.gov Climate weather records at the Julian Carroll Airport near Jackson Kentucky (JKL) date back to January 1st 1981. Climate weather records at the London-Corbin Magee Field Airport (LOZ) date back to November 11th 1954.
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