Kerens climate

Kerens Frost Dates and Growing Season

NOAA 1991-2020 normals for Corsicana Campbell Fld, 19.7 km from Kerens, elevation 448 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Corsicana Campbell Fld. 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 7 and the first fall freeze around November 23, a growing season of about 261 days.

Median at 36°F
last March 20, first November 13
Median at 32°F
last March 7, first November 23
Median at 28°F
last February 22, first December 7

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 10Apr 3Mar 30Mar 25Mar 20Mar 16Mar 11Mar 7Feb 28
32°FMar 30Mar 21Mar 15Mar 11Mar 7Mar 3Feb 28Feb 23Feb 14
28°FMar 14Mar 7Mar 3Feb 27Feb 22Feb 17Feb 11Feb 4Jan 25
24°FMar 3Feb 25Feb 15Feb 8Feb 2Jan 28Jan 21Jan 12Jan 1
20°FFeb 17Feb 7Feb 1Jan 27Jan 19Jan 14Jan 7Jan 1Dec 20
16°FFeb 7Feb 2Jan 25Jan 18Jan 12Jan 8Jan 5Jan 1Dec 26

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 29Nov 2Nov 6Nov 9Nov 13Nov 16Nov 20Nov 23Nov 29
32°FNov 6Nov 11Nov 16Nov 19Nov 23Nov 26Dec 1Dec 5Dec 12
28°FNov 16Nov 23Nov 28Dec 2Dec 7Dec 12Dec 19Dec 26Jan 3
24°FDec 1Dec 8Dec 14Dec 20Dec 26Jan 1Jan 7Jan 14Jan 27
20°FDec 12Dec 20Dec 27Jan 1Jan 6Jan 11Jan 17Jan 28Feb 6
16°FDec 22Dec 31Jan 3Jan 6Jan 10Jan 14Jan 20Jan 30Feb 5

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°F263253247242235230225218209
32°F291281274266261255250243234
28°F323311303297290283276268258
24°F365350340333325317309301288
20°F365365365365362354345335322
16°F365365365365365365365365352

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
91% of years
20°F or colder
52% of years
16°F or colder
17% 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
2,021
Cooling degree days, base 65°F
2,772
Growing degree days, base 40°F
9,952
Growing degree days, base 45°F
8,247
Growing degree days, base 50°F
6,659
Growing degree days, base 55°F
5,212
Growing degree days, base 60°F
3,912

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January531492
February37912141
March22539305
April75107484
May7289747
June0486936
July06061,071
August06151,080
September2408856
October58167575
November25930258
December4859113

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 19.7 km from Kerens. 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 USW00053912 (Corsicana Campbell Fld). Public domain.