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USDA Hardiness Zone 8b

Frost Dates for 79735 — Fort Stockton, Texas

NOAA 1991–2020 normals from Fort Stockton, TX (3,038 ft), 4 miles northwest.

Updated

In Fort Stockton, the last spring frost (32°F) is around March 8 in half of years and has passed by April 1 in nine years out of ten. The first fall frost comes around November 20, as early as November 3 one year in ten, leaving a typical freeze-free season of 254 days (NOAA, Fort Stockton, TX).

Last spring frost
March 8

50% probability

First fall frost
November 20

50% probability

Growing season
254 days

freeze-free, 50%

Hardiness zone
8b

15 to 20°F (-9.4 to -6.7°C) coldest night

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
38%

10 of 26 observed

Snow per year
1.4"

NOAA normal

Frost risk by date in Fort Stockton

Half of springs at Fort Stockton, TX see their last 32°F night by March 8; only one in ten is past it by February 16, and one in ten still has one after April 1. Planting tender crops after March 17 leaves a 30% risk of a frost on them, after March 22 20%, and after April 1 10%. The 24 days between the even-odds date and the one-in-ten date is wider than at 76% of the 339 Texas stations behind this site's ZIP pages, so a fixed calendar date is a gamble here.

In fall the first 32°F night comes by November 20 in half of years, as early as November 3 one year in ten, and holds off past December 7 one year in ten. A hard freeze of 28°F follows 11 days later, around December 1; in spring the one-in-ten date for 28°F is March 16, 16 days before the 32°F one. The freeze-free season lasts 254 days in a typical year, longer than at 58% of the 339 Texas stations; it reaches 282 days one year in ten and falls short of 227 one year in ten. On average 40 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 18 days longer, to about March 26, and return around November 9. Nights of 24°F, cold enough to damage hardier plants, come in 93% of winters and 16°F in 19%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 3Mar 10Mar 17Mar 21Mar 26Mar 31Apr 4Apr 9Apr 16
32°FFeb 16Feb 23Feb 28Mar 4Mar 8Mar 13Mar 17Mar 22Apr 1
28°FJan 25Feb 3Feb 12Feb 18Feb 23Feb 28Mar 4Mar 9Mar 16
24°F93% of yrsDec 31Jan 13Jan 22Jan 30Feb 5Feb 11Feb 17Feb 25Mar 5
20°F55% of yrsDec 14Dec 28Jan 3Jan 11Jan 22Jan 31Feb 7Feb 14Feb 22
16°F19% of yrstoo rare for a date
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 25Oct 31Nov 4Nov 7Nov 9Nov 12Nov 15Nov 20Nov 24
32°FNov 3Nov 8Nov 12Nov 15Nov 20Nov 23Nov 26Dec 1Dec 7
28°FNov 12Nov 18Nov 24Nov 27Dec 1Dec 5Dec 10Dec 17Dec 25
24°F93% of yrsNov 23Nov 30Dec 8Dec 16Dec 21Dec 28Jan 3Jan 12Jan 28
20°F55% of yrsDec 3Dec 13Dec 21Dec 28Jan 2Jan 9Jan 20Feb 1Feb 9
16°F19% of yrstoo rare for a date

Freeze probabilities 1991–2020 at Fort Stockton, 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 79735 →Compare Fort Stockton with another place →

Weather by month in Fort Stockton

July is the warmest month at Fort Stockton, TX, averaging 94°F by day and 71°F at night; January is the coldest at 61°F and 36°F. A freezing night is all but certain in every month from December to February (a 90% chance or more). From May to October the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 64% of years and April still brings one in 11% of years.

Warmth for growing adds up to 6,479 growing degree days a year (base 50°F), more than at 54% of the 351 Texas stations. 43% of them (2,789) have built up by the end of June, and July adds the most, 1,014. Precipitation totals 13.9 inches a year, most in September (2.0") and least in February (0.5"); May to September bring 64% of it.

Monthly normals 1991–2020 at Fort Stockton, TX
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan61360.7100%1388
Feb65390.595%7140
Mar73460.664%3320
Apr81530.811%<1512
May89621.40%0781
Jun94691.90%0948
Jul94711.80%01014
Aug95701.80%01004
Sep88642.00%0780
Oct81551.37%<1562
Nov69430.678%4229
Dec61370.5100%12102

Monthly normals 1991–2020 at Fort Stockton, TX (3,038 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.

When it snows in Fort Stockton, Texas

Measurable snow is rare here: only 10 of 26 winters from 1991 to 2020 recorded 0.1 inch or more at Fort Stockton, TX, 4.3 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 79735

What to do and when, from the 50% frost dates for Fort Stockton, Texas
WhenWhat to do
December 28 – January 11Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 11 – January 25Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 8 – February 22Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 8 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 28Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by November 6Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 20 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 79735 is 4 miles from Fort Stockton, TX, which stands at 3,038 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 79735 in zone 8b, the band where the coldest night of the year averaged 15 to 20°F (-9.4 to -6.7°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 8b places in Texas