Daisetta climate

Daisetta Frost Dates and Growing Season

NOAA 1991-2020 normals for Liberty, 15.8 km from Daisetta, elevation 35 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Liberty. 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 21 and the first fall freeze around December 1, a growing season of about 286 days.

Median at 36°F
last March 8, first November 18
Median at 32°F
last February 21, first December 1
Median at 28°F
last January 30, first December 22

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 31Mar 24Mar 17Mar 12Mar 8Mar 3Feb 27Feb 21Feb 10
32°FMar 17Mar 8Mar 3Feb 26Feb 21Feb 15Feb 6Jan 31Jan 22
28°FMar 1Feb 19Feb 8Feb 3Jan 30Jan 24Jan 16Jan 6Dec 25
24°FFeb 14Feb 4Jan 30Jan 23Jan 17Jan 12Jan 6Dec 31Dec 23
20°FFeb 2Jan 28Jan 20Jan 9Jan 7Jan 3Jan 1Dec 28Dec 16
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 1Nov 6Nov 10Nov 15Nov 18Nov 23Nov 28Dec 2Dec 9
32°FNov 9Nov 17Nov 22Nov 26Dec 1Dec 5Dec 11Dec 22Jan 2
28°FNov 24Dec 1Dec 6Dec 13Dec 22Dec 29Jan 3Jan 8Jan 23
24°FDec 7Dec 18Dec 25Dec 31Jan 3Jan 7Jan 14Jan 25Feb 2
20°FDec 11Dec 24Dec 29Jan 1Jan 4Jan 7Jan 9Jan 20Feb 1
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°F286275267261254249242235227
32°F324310302293286279273266254
28°F365352341334327319310302288
24°F365365365365364357348338327
20°F365365365365365365365365355
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
100% of years
28°F or colder
90% of years
24°F or colder
50% of years
20°F or colder
15% of years
16°F or colder
2% 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
1,434
Cooling degree days, base 65°F
2,953
Growing degree days, base 40°F
10,661
Growing degree days, base 45°F
8,889
Growing degree days, base 50°F
7,200
Growing degree days, base 55°F
5,630
Growing degree days, base 60°F
4,209

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January39814157
February26920209
March14165399
April42146554
May3333795
June0492942
July05741,039
August05841,049
September0434883
October32212645
November18559343
December36321184

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 15.8 km from Daisetta. 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 USC00415196 (Liberty). Public domain.