Edenton climate

Edenton Frost Dates and Growing Season

NOAA 1991-2020 normals for Edenton, 6.9 km from Edenton, elevation 10 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Edenton. 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 24 and the first fall freeze around November 14, a growing season of about 238 days.

Median at 36°F
last April 5, first November 4
Median at 32°F
last March 24, first November 14
Median at 28°F
last March 9, first December 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°FApr 20Apr 16Apr 12Apr 8Apr 5Apr 3Mar 31Mar 27Mar 21
32°FApr 8Apr 3Mar 31Mar 28Mar 24Mar 21Mar 17Mar 12Mar 5
28°FMar 27Mar 21Mar 17Mar 13Mar 9Mar 5Feb 28Feb 24Feb 15
24°FMar 16Mar 9Mar 3Feb 27Feb 22Feb 16Feb 10Feb 3Jan 26
20°FMar 2Feb 24Feb 16Feb 10Feb 3Jan 30Jan 24Jan 16Jan 9
16°FFeb 17Feb 8Jan 31Jan 29Jan 24Jan 20Jan 16Jan 10Jan 5

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 24Oct 28Oct 31Nov 2Nov 4Nov 6Nov 9Nov 12Nov 17
32°FNov 1Nov 5Nov 8Nov 11Nov 14Nov 17Nov 22Nov 28Dec 3
28°FNov 11Nov 16Nov 21Nov 25Dec 1Dec 4Dec 9Dec 17Dec 26
24°FNov 25Dec 3Dec 9Dec 16Dec 23Dec 28Jan 2Jan 8Jan 16
20°FDec 14Dec 24Dec 30Jan 2Jan 8Jan 12Jan 18Jan 24Feb 2
16°FDec 29Jan 4Jan 8Jan 12Jan 16Jan 19Jan 24Jan 30Feb 7

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°F234227222217213209206201195
32°F262253246242238233229223216
28°F299289281274269263258251243
24°F329319311306301295289281271
20°F365351342336331323315309300
16°F365365365365360350342335323

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
88% of years
16°F or colder
54% 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
2,868
Cooling degree days, base 65°F
1,840
Growing degree days, base 40°F
8,252
Growing degree days, base 45°F
6,642
Growing degree days, base 50°F
5,184
Growing degree days, base 55°F
3,894
Growing degree days, base 60°F
2,782

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January670040
February535153
March4038151
April16355351
May39174600
June2362810
July0480945
August0425890
September8257699
October12069418
November3548162
December573166

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 6.9 km from Edenton. 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 USC00312635 (Edenton). Public domain.