Hudspeth County climate

Hudspeth County Frost Dates and Growing Season

NOAA 1991-2020 normals for Cornudas Svc Stn, 36.9 km from Hudspeth County, elevation 4480 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Cornudas Svc Stn. 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 13 and the first fall freeze around October 29, a growing season of about 196 days.

Median at 36°F
last April 25, first October 21
Median at 32°F
last April 13, first October 29
Median at 28°F
last April 1, first November 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°FMay 7May 3Apr 30Apr 28Apr 25Apr 22Apr 19Apr 16Apr 11
32°FApr 29Apr 23Apr 19Apr 16Apr 13Apr 10Apr 6Apr 3Mar 29
28°FApr 17Apr 11Apr 7Apr 4Apr 1Mar 27Mar 20Mar 14Mar 8
24°FApr 1Mar 24Mar 17Mar 12Mar 7Mar 3Feb 28Feb 23Feb 16
20°FMar 14Mar 6Feb 28Feb 23Feb 18Feb 13Feb 9Feb 3Jan 29
16°FFeb 27Feb 15Feb 9Feb 3Jan 31Jan 24Jan 17Jan 8Dec 30

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 9Oct 12Oct 16Oct 18Oct 21Oct 23Oct 25Oct 28Nov 1
32°FOct 16Oct 20Oct 23Oct 26Oct 29Nov 1Nov 3Nov 6Nov 10
28°FOct 25Oct 29Nov 1Nov 4Nov 7Nov 10Nov 12Nov 16Nov 20
24°FNov 2Nov 8Nov 12Nov 14Nov 18Nov 21Nov 24Nov 28Dec 2
20°FNov 12Nov 18Nov 23Nov 26Nov 29Dec 2Dec 6Dec 10Dec 18
16°FNov 26Dec 1Dec 6Dec 11Dec 15Dec 19Dec 24Dec 30Jan 9

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°F194188183179176172169165159
32°F216209204199196192187183175
28°F245237229223218214210204197
24°F277269263258252246240232222
20°F312302294288282277271264255
16°F353342334327320313304295284

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
97% 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
3,132
Cooling degree days, base 65°F
1,593
Growing degree days, base 40°F
7,716
Growing degree days, base 45°F
6,130
Growing degree days, base 50°F
4,729
Growing degree days, base 55°F
3,514
Growing degree days, base 60°F
2,470

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January71904
February531025
March3541145
April15818315
May25147588
June0374823
July0440905
August0378843
September11207647
October14528352
November467075
December72207

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 36.9 km from Hudspeth County. Low ground, valleys and open fields freeze earlier and later than a town center or a hillside.

More

Sources

NOAA NCEI U.S. Climate Normals, 1991-2020, annual and seasonal normals for station USC00412012 (Cornudas Svc Stn). Public domain.