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USDA Hardiness Zone 8a

Frost Dates for 79756 — Monahans, Texas

NOAA 1991–2020 normals from Monahans, TX (2,547 ft), 2 miles southwest.

Updated

In Monahans, the last spring frost (32°F) is around April 3 in half of years and has passed by April 21 in nine years out of ten. The first fall frost comes around November 6, as early as October 23 one year in ten, leaving a typical freeze-free season of 216 days (NOAA, Monahans, TX).

Last spring frost
April 3

50% probability

First fall frost
November 6

50% probability

Growing season
216 days

freeze-free, 50%

Hardiness zone
8a

10 to 15°F (-12.2 to -9.4°C) coldest night

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
38%

6 of 16 observed

Snow per year
0.7"

NOAA normal

Frost risk by date in Monahans

Half of springs at Monahans, TX see their last 32°F night by April 3; only one in ten is past it by March 11, and one in ten still has one after April 21. Planting tender crops after April 10 leaves a 30% risk of a frost on them, after April 15 20%, and after April 21 10%. The 18 days between the even-odds date and the one-in-ten date is narrower than at 75% of the 339 Texas stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 6 in half of years, as early as October 23 one year in ten, and holds off past November 19 one year in ten. A hard freeze of 28°F follows 9 days later, around November 15; in spring the one-in-ten date for 28°F is April 9, 12 days before the 32°F one. The freeze-free season lasts 216 days in a typical year, shorter than at 88% of the 339 Texas stations; it reaches 240 days one year in ten and falls short of 192 one year in ten. On average 74 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 12 days longer, to about April 15, and return around October 30. Severe cold of 16°F or below comes in 91% of winters, usually between December 18 and January 27.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 29Apr 4Apr 8Apr 11Apr 15Apr 17Apr 21Apr 25Apr 30
32°FMar 11Mar 19Mar 26Mar 31Apr 3Apr 7Apr 10Apr 15Apr 21
28°FFeb 25Mar 2Mar 7Mar 11Mar 16Mar 22Mar 27Apr 2Apr 9
24°FFeb 10Feb 17Feb 22Feb 26Mar 2Mar 6Mar 10Mar 16Mar 23
20°FJan 19Jan 30Feb 4Feb 9Feb 14Feb 20Feb 26Mar 3Mar 11
16°F91% of yrsDec 17Dec 31Jan 9Jan 18Jan 27Feb 1Feb 8Feb 17Mar 1
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 15Oct 19Oct 24Oct 27Oct 30Nov 1Nov 4Nov 6Nov 10
32°FOct 23Oct 28Nov 1Nov 4Nov 6Nov 9Nov 11Nov 15Nov 19
28°FOct 31Nov 5Nov 8Nov 12Nov 15Nov 17Nov 20Nov 24Nov 29
24°FNov 8Nov 14Nov 17Nov 21Nov 23Nov 26Nov 29Dec 2Dec 7
20°FNov 17Nov 23Nov 27Dec 1Dec 4Dec 8Dec 12Dec 18Dec 26
16°F91% of yrsNov 26Dec 2Dec 7Dec 13Dec 18Dec 23Dec 29Jan 5Jan 22

Freeze probabilities 1991–2020 at Monahans, TX, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.

Frost risk on any date in 79756 →Compare Monahans with another place →

Weather by month in Monahans

July is the warmest month at Monahans, TX, averaging 98°F by day and 69°F at night; December is the coldest at 60°F and 27°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 59% of years.

Warmth for growing adds up to 5,925 growing degree days a year (base 50°F), fewer than at 75% of the 351 Texas stations. 41% of them (2,452) have built up by the end of June, and July adds the most, 1,042. Precipitation totals 13.9 inches a year, most in September (2.2") and least in April (0.4"); May to September bring 64% of it.

Monthly normals 1991–2020 at Monahans, TX
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan60280.7100%2225
Feb66310.5100%1370
Mar74390.694%7231
Apr82460.459%1427
May90571.31%0730
Jun97671.60%0969
Jul98691.90%01042
Aug97681.90%01001
Sep90622.20%0774
Oct81491.527%1478
Nov69360.599%9149
Dec60270.8100%2129

Monthly normals 1991–2020 at Monahans, TX (2,547 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.

Compared with the next station

The nearest other station, Kermit, TX, 22 miles northwest of Monahans and 283 feet higher, has a last frost 8 days earlier (March 26), a first frost 5 days later (November 11), a season 14 days longer.

Frost dates for 79745 (Kermit) →

When it snows in Monahans, Texas

Measurable snow is rare here: only 6 of 16 winters from 1991 to 2020 recorded 0.1 inch or more at Monahans, TX, 2.1 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 79756

What to do and when, from the 50% frost dates for Monahans, Texas
WhenWhat to do
January 23 – February 6Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 6 – February 20Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 6 – March 20Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 3 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 14Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 23Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 6 onwardPlant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter.

The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.

Where these figures come from

ZIP 79756 is 2 miles from Monahans, TX, which stands at 2,547 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 79756 in zone 8a, the band where the coldest night of the year averaged 10 to 15°F (-12.2 to -9.4°C) over 1991–2020; a zone describes winter lows, not frost dates.

Frost dates across Texas →

Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.

Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.

Other zone 8a places in Texas