Kennedale climate

Kennedale Frost Dates and Growing Season

NOAA 1991-2020 normals for Arlington Muni AP, 12.5 km from Kennedale, elevation 630 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Arlington Muni AP. 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 9 and the first fall freeze around November 21, a growing season of about 256 days.

Median at 36°F
last March 24, first November 8
Median at 32°F
last March 9, first November 21
Median at 28°F
last February 25, first December 4

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 15Apr 7Apr 3Mar 30Mar 24Mar 19Mar 15Mar 10Mar 3
32°FMar 28Mar 20Mar 16Mar 12Mar 9Mar 5Mar 1Feb 25Feb 18
28°FMar 14Mar 9Mar 5Feb 28Feb 25Feb 19Feb 13Feb 7Jan 29
24°FMar 4Feb 25Feb 16Feb 11Feb 5Jan 31Jan 26Jan 18Jan 3
20°FFeb 17Feb 7Feb 1Jan 26Jan 20Jan 14Jan 6Dec 30Dec 19
16°FFeb 6Feb 1Jan 27Jan 19Jan 12Jan 7Jan 3Dec 29Dec 19

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 22Oct 29Nov 1Nov 5Nov 8Nov 11Nov 16Nov 20Nov 26
32°FNov 3Nov 8Nov 12Nov 17Nov 21Nov 25Nov 30Dec 3Dec 7
28°FNov 14Nov 21Nov 26Dec 1Dec 4Dec 8Dec 12Dec 20Dec 30
24°FNov 27Dec 5Dec 10Dec 16Dec 23Dec 29Jan 3Jan 11Jan 24
20°FDec 10Dec 17Dec 22Dec 28Jan 2Jan 8Jan 16Jan 24Feb 4
16°FDec 13Dec 22Dec 30Jan 2Jan 6Jan 10Jan 18Jan 27Feb 2

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°F257247241235229224218213204
32°F282273267261256250244239229
28°F319307298291285279272265254
24°F357341334328320313306297283
20°F365365365364354346338331320
16°F365365365365365365365355342

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
94% of years
20°F or colder
64% of years
16°F or colder
26% 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
2,126
Cooling degree days, base 65°F
2,824
Growing degree days, base 40°F
9,910
Growing degree days, base 45°F
8,216
Growing degree days, base 50°F
6,643
Growing degree days, base 55°F
5,219
Growing degree days, base 60°F
3,942

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January553381
February39910128
March23341301
April79108481
May9288744
June0507957
July06341,099
August06341,099
September2409856
October69156554
November27529245
December507699

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 12.5 km from Kennedale. 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 USW00053907 (Arlington Muni AP). Public domain.