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USDA Hardiness Zone 8a

Frost Dates for 76857 — May, Texas

NOAA 1991–2020 normals from Rising Star 1S, TX (1,633 ft), 11 miles north.

Updated

In May, the last spring frost (32°F) is around March 26 in half of years and has passed by April 14 in nine years out of ten. The first fall frost comes around November 10, as early as October 29 one year in ten, leaving a typical freeze-free season of 230 days (NOAA, Rising Star 1S, TX).

Last spring frost
March 26

50% probability

First fall frost
November 10

50% probability

Growing season
230 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 May

Half of springs at Rising Star 1S, TX see their last 32°F night by March 26; only one in ten is past it by March 3, and one in ten still has one after April 14. Planting tender crops after April 2 leaves a 30% risk of a frost on them, after April 6 20%, and after April 14 10%. The 19 days between the even-odds date and the one-in-ten date is narrower than at 63% of the 339 Texas stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 10 in half of years, as early as October 29 one year in ten, and holds off past November 28 one year in ten. A hard freeze of 28°F follows 11 days later, around November 21; in spring the one-in-ten date for 28°F is April 2, 12 days before the 32°F one. The freeze-free season lasts 230 days in a typical year, shorter than at 76% of the 339 Texas stations; it reaches 256 days one year in ten and falls short of 204 one year in ten. On average 57 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 11 days longer, to about April 6, and return around November 1. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 69%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 17Mar 26Mar 31Apr 3Apr 6Apr 10Apr 15Apr 19Apr 24
32°FMar 3Mar 10Mar 15Mar 20Mar 26Mar 31Apr 2Apr 6Apr 14
28°FFeb 19Feb 26Mar 2Mar 5Mar 9Mar 14Mar 19Mar 27Apr 2
24°FFeb 3Feb 10Feb 15Feb 20Feb 26Mar 2Mar 5Mar 9Mar 16
20°F95% of yrsJan 8Jan 21Jan 30Feb 4Feb 8Feb 13Feb 20Mar 1Mar 7
16°F69% of yrsDec 23Jan 4Jan 15Jan 20Jan 27Feb 1Feb 7Feb 13Feb 27
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 21Oct 25Oct 28Oct 31Nov 1Nov 4Nov 6Nov 10Nov 15
32°FOct 29Nov 1Nov 4Nov 7Nov 10Nov 13Nov 16Nov 21Nov 28
28°FNov 3Nov 9Nov 12Nov 17Nov 21Nov 25Nov 29Dec 3Dec 11
24°FNov 12Nov 19Nov 24Nov 29Dec 2Dec 6Dec 12Dec 19Dec 28
20°F95% of yrsNov 24Nov 30Dec 6Dec 14Dec 20Dec 26Jan 1Jan 9Jan 21
16°F69% of yrsDec 8Dec 18Dec 24Dec 31Jan 3Jan 10Jan 17Jan 26Feb 6

Freeze probabilities 1991–2020 at Rising Star 1S, 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 76857 →Compare May with another place →

Weather by month in May

July is the warmest month at Rising Star 1S, TX, averaging 94°F by day and 70°F at night; January is the coldest at 57°F and 31°F. A freezing night is all but certain in every month from November to February (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 90% of years and April still brings one in 36% of years.

Warmth for growing adds up to 5,748 growing degree days a year (base 50°F), fewer than at 83% of the 351 Texas stations. 40% of them (2,274) have built up by the end of June, and July adds the most, 1,001. Precipitation totals 31.6 inches a year, most in May (5.0") and least in January (1.3"); May to September bring 53% of it.

Monthly normals 1991–2020 at Rising Star 1S, TX
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan57311.3100%1839
Feb61341.9100%1166
Mar68422.590%5221
Apr77502.436%1403
May84605.00%0674
Jun90683.70%0870
Jul94702.30%01001
Aug95692.80%0995
Sep87633.00%0750
Oct79522.815%<1484
Nov67412.291%6188
Dec58341.7100%1657

Monthly normals 1991–2020 at Rising Star 1S, TX (1,633 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, Brownwood 2ENE, TX, 12 miles south of May and 239 feet lower, has a last frost 4 days earlier (March 22), the same first-frost date, a season 3 days longer.

Frost dates for 76801 (Brownwood) →

When it snows in May, Texas

Measurable snow is rare here: only 6 of 16 winters from 1991 to 2020 recorded 0.1 inch or more at Rising Star 1S, TX, 11.3 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 76857

What to do and when, from the 50% frost dates for May, Texas
WhenWhat to do
January 15 – January 29Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 29 – February 12Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 26 – March 12Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 26 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 18Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 27Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 10 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 76857 is 11 miles from Rising Star 1S, TX, which stands at 1,633 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 76857 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