Texline climate

Texline Frost Dates and Growing Season

NOAA 1991-2020 normals for Clayton Muni Air Pk, 14 km from Texline, elevation 4960 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Clayton Muni Air Pk. 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 27 and the first fall freeze around October 17, a growing season of about 170 days.

Median at 36°F
last May 6, first October 7
Median at 32°F
last April 27, first October 17
Median at 28°F
last April 16, first October 26

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 20May 15May 11May 9May 6May 4May 1Apr 29Apr 25
32°FMay 10May 5May 2Apr 30Apr 27Apr 24Apr 22Apr 18Apr 14
28°FMay 1Apr 26Apr 22Apr 19Apr 16Apr 14Apr 11Apr 6Apr 1
24°FApr 21Apr 15Apr 11Apr 8Apr 5Apr 1Mar 29Mar 25Mar 18
20°FApr 9Apr 4Mar 31Mar 27Mar 23Mar 19Mar 14Mar 7Mar 2
16°FMar 31Mar 23Mar 17Mar 11Mar 7Mar 3Feb 28Feb 23Feb 16

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°FSep 26Sep 30Oct 2Oct 4Oct 7Oct 9Oct 12Oct 15Oct 19
32°FOct 2Oct 6Oct 11Oct 14Oct 17Oct 19Oct 22Oct 25Oct 29
28°FOct 12Oct 16Oct 20Oct 23Oct 26Oct 28Oct 31Nov 3Nov 8
24°FOct 20Oct 26Oct 30Nov 1Nov 4Nov 7Nov 10Nov 13Nov 18
20°FOct 29Nov 4Nov 7Nov 11Nov 14Nov 18Nov 21Nov 25Dec 1
16°FNov 3Nov 9Nov 15Nov 21Nov 24Nov 27Dec 1Dec 5Dec 12

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°F169164160156152148144139134
32°F188182177173170166162158151
28°F212205200196192188183179172
24°F236229223218213208204198191
20°F260253246241236231225218210
16°F288278271265259253247240232

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
100% 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
4,848
Cooling degree days, base 65°F
968
Growing degree days, base 40°F
5,962
Growing degree days, base 45°F
4,631
Growing degree days, base 50°F
3,475
Growing degree days, base 55°F
2,486
Growing degree days, base 60°F
1,648

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January91605
February770010
March624153
April3945142
May16153368
June18205637
July2325787
August5257718
September68110495
October33112207
November640148
December92006

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 14 km from Texline. 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 USW00023051 (Clayton Muni Air Pk). Public domain.