Deming climate

Deming Frost Dates and Growing Season

NOAA 1991-2020 normals for Deming, 1.9 km from Deming, elevation 4300 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Deming. 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 7 and the first fall freeze around November 3, a growing season of about 208 days.

Median at 36°F
last April 23, first October 25
Median at 32°F
last April 7, first November 3
Median at 28°F
last March 16, first November 13

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 7May 3Apr 30Apr 27Apr 23Apr 20Apr 17Apr 13Apr 7
32°FApr 25Apr 18Apr 14Apr 10Apr 7Apr 3Mar 31Mar 25Mar 20
28°FApr 9Apr 1Mar 27Mar 20Mar 16Mar 13Mar 9Mar 5Feb 28
24°FMar 17Mar 11Mar 7Mar 3Feb 28Feb 24Feb 20Feb 16Feb 8
20°FMar 1Feb 22Feb 18Feb 12Feb 6Feb 1Jan 28Jan 21Jan 7
16°FFeb 8Jan 31Jan 24Jan 16Jan 12Jan 6Jan 1Dec 26Dec 17

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 13Oct 17Oct 20Oct 23Oct 25Oct 27Oct 29Nov 1Nov 5
32°FOct 21Oct 25Oct 29Nov 1Nov 3Nov 5Nov 8Nov 11Nov 15
28°FOct 29Nov 3Nov 6Nov 10Nov 13Nov 16Nov 18Nov 22Nov 26
24°FNov 9Nov 14Nov 18Nov 22Nov 24Nov 27Nov 30Dec 4Dec 8
20°FNov 21Nov 26Nov 30Dec 3Dec 6Dec 9Dec 14Dec 20Dec 28
16°FDec 1Dec 6Dec 10Dec 17Dec 21Dec 26Dec 30Jan 7Jan 16

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°F202196191187184180176172165
32°F230222217213208203199194186
28°F261253246242237232227221211
24°F295284277272268263258251242
20°F335325316308303296291282272
16°F365365357351343336331324311

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
99% of years
16°F or colder
81% 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
2,912
Cooling degree days, base 65°F
1,802
Growing degree days, base 40°F
8,097
Growing degree days, base 45°F
6,468
Growing degree days, base 50°F
5,029
Growing degree days, base 55°F
3,789
Growing degree days, base 60°F
2,714

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January68007
February490032
March3421152
April13925339
May24153594
June1398847
July0494959
August0432897
September3257703
October11141399
November431191
December69108

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 1.9 km from Deming. 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 USC00292436 (Deming). Public domain.