Fleming-Neon climate

Fleming-Neon Frost Dates and Growing Season

NOAA 1991-2020 normals for Whitesburg 2SE, 13.3 km from Fleming-Neon, elevation 1240 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Whitesburg 2SE. A median date has an even chance of a later freeze in spring, or an earlier one in fall.

The last spring freeze typically comes around April 21 and the first fall freeze around October 22, a growing season of about 183 days.

Median at 36°F
last May 1, first October 13
Median at 32°F
last April 21, first October 22
Median at 28°F
last April 8, first October 31

Last freeze in spring

The chance of a later freeze than the date shown. At 10 percent, one spring in ten still freezes after the date; planting after the 10 percent date for 32°F is the cautious choice.

Threshold10%20%30%40%50%60%70%80%90%
36°FMay 15May 11May 7May 3May 1Apr 29Apr 26Apr 23Apr 18
32°FMay 6Apr 30Apr 27Apr 24Apr 21Apr 19Apr 16Apr 12Apr 7
28°FApr 22Apr 17Apr 14Apr 11Apr 8Apr 5Apr 2Mar 30Mar 24
24°FApr 7Apr 4Apr 1Mar 30Mar 27Mar 23Mar 19Mar 15Mar 7
20°FMar 31Mar 26Mar 21Mar 17Mar 13Mar 9Mar 4Feb 28Feb 19
16°FMar 21Mar 14Mar 9Mar 4Feb 28Feb 23Feb 16Feb 9Feb 2

First freeze in fall

The chance of an earlier freeze than the date shown. At 10 percent, one fall in ten freezes before the date.

Threshold10%20%30%40%50%60%70%80%90%
36°FOct 3Oct 6Oct 8Oct 11Oct 13Oct 15Oct 19Oct 22Oct 27
32°FOct 9Oct 14Oct 16Oct 19Oct 22Oct 24Oct 27Oct 31Nov 3
28°FOct 17Oct 22Oct 25Oct 28Oct 31Nov 2Nov 5Nov 8Nov 13
24°FOct 27Nov 1Nov 3Nov 6Nov 9Nov 13Nov 17Nov 22Nov 27
20°FNov 7Nov 12Nov 16Nov 21Nov 25Nov 29Dec 2Dec 6Dec 14
16°FNov 17Nov 25Dec 1Dec 4Dec 9Dec 15Dec 23Dec 29Jan 6

Growing season length

Days between the last spring and first fall freeze at each threshold, with the chance of a season at least that long.

Threshold10%20%30%40%50%60%70%80%90%
36°F183177172168164161157152145
32°F201195191187183179175170163
28°F225219214210206202198193186
24°F254244238233229225219214208
20°F284275268262257252246241233
16°F320309301294287280273266256

How often it gets that cold

The share of years with at least one night at or below each temperature.

36°F or colder
100% of years
32°F or colder
100% of years
28°F or colder
100% of years
24°F or colder
100% of years
20°F or colder
100% of years
16°F or colder
100% of years

Degree days

A degree day is one degree of the daily mean temperature beyond a base, for one day. Heating degree days count cold (the fuel a house burns), cooling degree days heat, growing degree days the warmth a crop needs; each crop has its own base.

Heating degree days, base 65°F
4,734
Cooling degree days, base 65°F
712
Growing degree days, base 40°F
5,811
Growing degree days, base 45°F
4,466
Growing degree days, base 50°F
3,292
Growing degree days, base 55°F
2,276
Growing degree days, base 60°F
1,409

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January96208
February770013
March638158
April3377182
May13244383
June20120551
July2239702
August3199662
September6490476
October32311198
November618145
December865014

What this means

NOAA computes these from the daily lows at the station over 1991-2020, fitting the dates of each year's last and first freeze to a distribution, so a date can be stated at any level of risk. 36°F is a frost risk for tender plants on a clear, calm night, since the ground cools below the air above it; 32°F is a freeze; 28°F is a hard freeze that kills most annuals.

The station is 13.3 km from Fleming-Neon. Low ground, valleys and open fields freeze earlier and later than a town center or a hillside.

More

Sources

NOAA NCEI U.S. Climate Normals, 1991-2020, annual and seasonal normals for station USC00158635 (Whitesburg 2SE). Public domain.