Normals, Means and Extremes for April

Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

..Climate Normals...Means and Extremes for April... ...Jackson Kentucky (JKL)... Temperature Data... Average Maximum........... 68.0 Average Minimum........... 46.7 Average Monthly........... 57.4 Highest................... 92 on the 27th in 1986 Lowest.................... 20 on the 7th in 1982 Low Maximum.............. 31 on the 4th in 1987 High Minimum.............. 70 on the 29th in 2017 Normal days with high 90 or above..... 0.2 Normal days with high 32 or below..... 0.1 Normal days with low 32 or below..... 1.9 Normal days with low 0 or below..... 0.0 Degree Days (Base 65)..... Heating Cooling Monthly Average........... 268 39 Greatest Monthly.......... 402 in 1997 95 in 2001 Least Monthly............. 121 in 2017 1 in 1998 Precipitation Data... Monthly Average........... 3.83 inches Wettest................... 10.29 inches in 2015 Driest.................... 0.78 inches in 1985 Greatest 24 Hour.......... 4.45 inches on the 2nd-3rd in 2015 Average Days of Thunder... 4.1 Average Days of Dense Fog. 2.5 Average Snowfall.......... 1.0 inches Greatest Snowfall......... 17.8 inches in 1987 Greatest 24 Hour Snowfall. 8.5 inches on the 3rd-4th in 1987 Greatest Snow Depth....... 11 inches in 1987 ...London Kentucky (LOZ)... Temperature Data... Average Maximum........... 68.6 Average Minimum........... 44.5 Average Monthly........... 56.5 Highest................... 90 on the 27th in 1986/10th in 1995 Lowest.................... 19 on the 8th in 2007 Low Maximum............... 31 on the 4th in 1987 High Minimum.............. 71 on the 29th in 1996 Normal days with high 90 or above..... 0.1 Normal days with high 32 or below..... 0.0 Normal days with low 32 or below..... 4.4 Normal days with low 0 or below..... 0.0 Degree Days (Base 65)..... Heating Cooling Monthly Average........... 276 23 Greatest Monthly.......... 494 in 1961 64 in 2001 Least Monthly............. 124 in 2017 1 in 1983 & 1998 & 2000 Precipitation Data... Monthly Average........... 4.05 inches Wettest................... 10.23 inches in 2011 Driest.................... 0.58 inches in 1976 Greatest Daily Rain....... 2.75 inches on the 4th in 1977 Average Snowfall.......... 1.0 inches Greatest Snowfall......... 9.0 inches in 1987 Greatest Daily Snowfall... 6.0 inches on the 5th in 1987 ***Snowfall records for London were kept between 1954 and 1996*** The latest climate outlook for April indicates that eastern Kentucky will be in a weather pattern more conducive to above normal temperatures and near normal precipitation. 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.