Normals, Means and Extremes for December

...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.