Skip to content

USDA Hardiness Zone 9a

Frost Dates for 78065 — Poteet, Texas

NOAA 1991–2020 normals from Poteet, TX (425 ft), 2 miles southeast.

Updated

In Poteet, the last spring frost (32°F) is around February 22 in half of years and has passed by March 18 in nine years out of ten. The first fall frost comes around December 1, as early as November 8 one year in ten, leaving a typical freeze-free season of 281 days (NOAA, Poteet, TX).

Last spring frost
February 22

50% probability

First fall frost
December 1

50% probability

Growing season
281 days

freeze-free, 50%

Hardiness zone
9a

20 to 25°F (-6.7 to -3.9°C) coldest night

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
8%

2 of 25 observed

Snow per year
0"

NOAA normal

Frost risk by date in Poteet

Half of springs at Poteet, TX see their last 32°F night by February 22; only one in ten is past it by January 25, and one in ten still has one after March 18. Planting tender crops after March 3 leaves a 30% risk of a frost on them, after March 9 20%, and after March 18 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 December 1 in half of years, as early as November 8 one year in ten, and holds off past December 28 one year in ten. A hard freeze of 28°F follows 16 days later, around December 17; in spring the one-in-ten date for 28°F is March 6, 12 days before the 32°F one. The freeze-free season lasts 281 days in a typical year, longer than at 78% of the 339 Texas stations; it reaches 319 days one year in ten and falls short of 248 one year in ten. On average 20 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 March 6, and return around November 17. Nights of 24°F, cold enough to damage hardier plants, come in 65% of winters and 16°F in 4%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FFeb 13Feb 20Feb 26Mar 2Mar 6Mar 12Mar 19Mar 27Apr 5
32°FJan 25Feb 2Feb 10Feb 16Feb 22Feb 27Mar 3Mar 9Mar 18
28°F94% of yrsDec 31Jan 15Jan 23Jan 31Feb 4Feb 13Feb 19Feb 26Mar 6
24°F65% of yrsDec 12Dec 30Jan 5Jan 15Jan 23Feb 1Feb 7Feb 16Mar 1
20°F26% of yrstoo rare for a date
16°F4% 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°FNov 1Nov 6Nov 10Nov 13Nov 17Nov 22Nov 26Dec 1Dec 6
32°FNov 8Nov 15Nov 22Nov 26Dec 1Dec 4Dec 8Dec 16Dec 28
28°F94% of yrsNov 22Nov 29Dec 4Dec 9Dec 17Dec 25Jan 1Jan 7Jan 24
24°F65% of yrsDec 1Dec 8Dec 18Dec 25Jan 1Jan 5Jan 15Jan 30Feb 11
20°F26% of yrstoo rare for a date
16°F4% of yrstoo rare for a date

Freeze probabilities 1991–2020 at Poteet, 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 78065 →Compare Poteet with another place →

Weather by month in Poteet

August is the warmest month at Poteet, TX, averaging 98°F by day and 74°F at night; January is the coldest at 66°F and 41°F. A freezing night is all but certain in January (a 90% chance or more). From April to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 73% of years and March still brings one in 34% of years.

Warmth for growing adds up to 7,655 growing degree days a year (base 50°F), more than at 81% of the 351 Texas stations. 43% of them (3,288) have built up by the end of June, and August adds the most, 1,105. Precipitation totals 28.4 inches a year, most in September (4.0") and least in November (1.5"); May to September bring 54% of it.

Monthly normals 1991–2020 at Poteet, TX
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan66411.690%6168
Feb70451.873%3235
Mar76522.034%2439
Apr82582.12%<1610
May88673.60%0849
Jun94723.40%0987
Jul96742.40%01087
Aug98742.00%01105
Sep92694.00%0921
Oct85602.33%0688
Nov75491.548%2376
Dec67421.784%6190

Monthly normals 1991–2020 at Poteet, TX (425 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, Pleasanton, TX, 9 miles southeast of Poteet, has a last frost 5 days later (February 27), a first frost 3 days earlier (November 28), a season 7 days shorter.

Frost dates for 78064 (Pleasanton) →

When it snows in Poteet, Texas

Measurable snow is rare here: only 2 of 25 winters from 1991 to 2020 recorded 0.1 inch or more at Poteet, TX, 2.2 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 78065

What to do and when, from the 50% frost dates for Poteet, Texas
WhenWhat to do
December 14 – December 28Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
December 28 – January 11Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
January 25 – February 8Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
February 22 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by September 8Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by November 17Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
December 1 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 78065 is 2 miles from Poteet, TX, which stands at 425 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 78065 in zone 9a, the band where the coldest night of the year averaged 20 to 25°F (-6.7 to -3.9°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 9a places in Texas