Eastpoint climate

Eastpoint Frost Dates and Growing Season

NOAA 1991-2020 normals for Apalachicola Airport, 13.8 km from Eastpoint, elevation 20 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Apalachicola Airport. 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 February 20 and the first fall freeze around December 13, a growing season of about 299 days.

Median at 36°F
last March 4, first November 27
Median at 32°F
last February 20, first December 13
Median at 28°F
last February 5, first January 1

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°FMar 21Mar 16Mar 12Mar 8Mar 4Mar 1Feb 25Feb 19Feb 8
32°FMar 12Mar 5Feb 28Feb 24Feb 20Feb 14Feb 8Jan 31Jan 20
28°FMar 1Feb 22Feb 16Feb 10Feb 5Jan 31Jan 25Jan 15Jan 1
24°FFeb 18Feb 9Feb 4Jan 30Jan 25Jan 19Jan 12Jan 4Dec 27
20°FFeb 15Feb 8Feb 2Jan 30Jan 22Jan 17Jan 9Jan 3Dec 28
16°F–––––––––

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°FNov 6Nov 12Nov 16Nov 21Nov 27Dec 1Dec 7Dec 15Dec 28
32°FNov 17Nov 25Dec 1Dec 5Dec 13Dec 23Jan 1Jan 6Jan 16
28°FDec 1Dec 7Dec 18Dec 27Jan 1Jan 6Jan 13Jan 20Feb 3
24°FDec 10Dec 22Dec 30Jan 3Jan 10Jan 15Jan 20Jan 29Feb 7
20°FDec 19Dec 30Jan 4Jan 11Jan 17Jan 21Jan 29Feb 6Feb 12
16°F–––––––––

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°F303291283276269262256249240
32°F334322312306299292283275264
28°F365355342334326319311303292
24°F365365365365361351339330319
20°F365365365365365365365361341
16°F365365365365365365365365365

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
98% of years
28°F or colder
85% of years
24°F or colder
53% of years
20°F or colder
22% of years
16°F or colder
4% 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
1,220
Cooling degree days, base 65°F
2,846
Growing degree days, base 40°F
10,762
Growing degree days, base 45°F
8,967
Growing degree days, base 50°F
7,229
Growing degree days, base 55°F
5,600
Growing degree days, base 60°F
4,126

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January3538179
February24610207
March14140370
April37112525
May1318781
June0481931
July05601,025
August05461,011
September0446895
October22242686
November13765384
December28221236

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 13.8 km from Eastpoint. 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 USC00080211 (Apalachicola Airport). Public domain.