Wingo climate

Wingo Frost Dates and Growing Season

NOAA 1991-2020 normals for Martin U Of T Branch E, 34.9 km from Wingo, elevation 340 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Martin U Of T Branch E. 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 4 and the first fall freeze around October 28, a growing season of about 204 days.

Median at 36°F
last April 16, first October 19
Median at 32°F
last April 4, first October 28
Median at 28°F
last March 26, first November 6

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 1Apr 27Apr 23Apr 20Apr 16Apr 13Apr 9Apr 6Apr 1
32°FApr 21Apr 16Apr 10Apr 7Apr 4Apr 1Mar 30Mar 26Mar 20
28°FApr 9Apr 3Apr 1Mar 29Mar 26Mar 23Mar 19Mar 15Mar 8
24°FApr 1Mar 28Mar 23Mar 20Mar 17Mar 13Mar 9Mar 4Feb 26
20°FMar 23Mar 17Mar 13Mar 8Mar 4Mar 1Feb 24Feb 18Feb 9
16°FMar 16Mar 8Mar 3Feb 27Feb 22Feb 15Feb 8Feb 1Jan 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 7Oct 11Oct 14Oct 17Oct 19Oct 21Oct 23Oct 26Oct 31
32°FOct 15Oct 20Oct 23Oct 25Oct 28Oct 30Nov 1Nov 5Nov 10
28°FOct 24Oct 29Nov 1Nov 3Nov 6Nov 10Nov 14Nov 18Nov 25
24°FNov 1Nov 7Nov 11Nov 15Nov 18Nov 22Nov 28Dec 2Dec 9
20°FNov 10Nov 18Nov 23Nov 28Dec 1Dec 6Dec 12Dec 20Dec 27
16°FNov 24Dec 1Dec 7Dec 13Dec 20Dec 25Dec 30Jan 4Jan 13

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°F203198193189185181177172166
32°F225218213209204201197192184
28°F249242236231226221215210203
24°F277268259254247242236231222
20°F305292283277271266259251241
16°F337327317309301294286278267

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
99% 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
3,905
Cooling degree days, base 65°F
1,705
Growing degree days, base 40°F
7,445
Growing degree days, base 45°F
6,011
Growing degree days, base 50°F
4,713
Growing degree days, base 55°F
3,566
Growing degree days, base 60°F
2,562

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January893018
February685030
March5158113
April22941293
May57159568
June3344790
July0457922
August1418882
September27222645
October21249323
November5005102
December783027

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 34.9 km from Wingo. 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 USC00405681 (Martin U Of T Branch E). Public domain.