Appling climate

Appling Frost Dates and Growing Season

NOAA 1991-2020 normals for Appling 2 Nw, 2.2 km from Appling, elevation 396 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Appling 2 Nw. 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 March 27 and the first fall freeze around November 7, a growing season of about 226 days.

Median at 36°F
last April 8, first October 30
Median at 32°F
last March 27, first November 7
Median at 28°F
last March 13, first November 18

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°FApr 24Apr 19Apr 15Apr 11Apr 8Apr 4Mar 31Mar 27Mar 20
32°FApr 13Apr 7Apr 3Mar 31Mar 27Mar 23Mar 19Mar 14Mar 7
28°FMar 31Mar 25Mar 21Mar 16Mar 13Mar 9Mar 3Feb 25Feb 16
24°FMar 18Mar 11Mar 5Feb 28Feb 22Feb 16Feb 9Feb 2Jan 25
20°FMar 8Feb 28Feb 16Feb 9Feb 4Jan 29Jan 23Jan 16Jan 4
16°FFeb 26Feb 7Feb 1Jan 28Jan 22Jan 17Jan 11Jan 3Dec 24

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 16Oct 21Oct 24Oct 27Oct 30Nov 1Nov 3Nov 6Nov 10
32°FOct 26Oct 30Nov 1Nov 4Nov 7Nov 9Nov 13Nov 17Nov 24
28°FNov 2Nov 7Nov 11Nov 15Nov 18Nov 22Nov 27Dec 2Dec 9
24°FNov 15Nov 21Nov 27Dec 1Dec 5Dec 11Dec 19Dec 27Jan 3
20°FNov 30Dec 6Dec 13Dec 20Dec 28Jan 2Jan 7Jan 14Jan 25
16°FDec 12Dec 21Dec 28Jan 1Jan 8Jan 13Jan 18Jan 26Feb 4

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°F227219212207203199196191185
32°F251241235231226221216211204
28°F286273264257252246240234226
24°F324310303295289282275265254
20°F364348337330323314305299287
16°F365365365363354346337329313

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
99% of years
20°F or colder
92% of years
16°F or colder
62% 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
2,600
Cooling degree days, base 65°F
1,938
Growing degree days, base 40°F
8,567
Growing degree days, base 45°F
6,914
Growing degree days, base 50°F
5,414
Growing degree days, base 55°F
4,084
Growing degree days, base 60°F
2,926

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January628051
February473371
March32714202
April12955381
May21186629
June0375825
July0491956
August0451916
September5279724
October10473438
November3559154
December558166

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 2.2 km from Appling. Low ground, valleys and open fields freeze earlier and later than a town center or a hillside.

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Sources

NOAA NCEI U.S. Climate Normals, 1991-2020, annual and seasonal normals for station USC00090311 (Appling 2 Nw). Public domain.