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USDA Hardiness Zone 8a

Frost Dates for 79714 — Andrews, Texas

NOAA 1991–2020 normals from Andrews, TX (3,192 ft), under a mile east.

Updated

In Andrews, the last spring frost (32°F) is around March 18 in half of years and has passed by April 9 in nine years out of ten. The first fall frost comes around November 14, as early as November 1 one year in ten, leaving a typical freeze-free season of 240 days (NOAA, Andrews, TX).

Last spring frost
March 18

50% probability

First fall frost
November 14

50% probability

Growing season
240 days

freeze-free, 50%

Hardiness zone
8a

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

First snow
January 17

median, 1991–2020

Last snow
January 28

median, 1991–2020

Winters with snow
50%

9 of 18 observed

Snow per year
1.7"

NOAA normal

Frost risk by date in Andrews

Half of springs at Andrews, TX see their last 32°F night by March 18; only one in ten is past it by February 25, and one in ten still has one after April 9. Planting tender crops after March 30 leaves a 30% risk of a frost on them, after April 3 20%, and after April 9 10%. The 22 days between the even-odds date and the one-in-ten date is wider than at 63% 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 14 in half of years, as early as November 1 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 25; in spring the one-in-ten date for 28°F is March 29, 11 days before the 32°F one. The freeze-free season lasts 240 days in a typical year, shorter than at 61% of the 339 Texas stations; it reaches 267 days one year in ten and falls short of 214 one year in ten. On average 59 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 16 days longer, to about April 3, and return around November 5. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 52%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 12Mar 19Mar 26Mar 31Apr 3Apr 6Apr 9Apr 13Apr 19
32°FFeb 25Mar 3Mar 8Mar 13Mar 18Mar 23Mar 30Apr 3Apr 9
28°FFeb 8Feb 17Feb 22Feb 28Mar 4Mar 7Mar 12Mar 18Mar 29
24°FJan 20Jan 30Feb 6Feb 11Feb 18Feb 23Feb 28Mar 5Mar 12
20°F88% of yrsDec 27Jan 6Jan 18Jan 24Jan 31Feb 5Feb 12Feb 22Mar 2
16°F52% of yrsDec 13Dec 24Jan 1Jan 8Jan 16Jan 23Jan 31Feb 7Feb 18
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 22Oct 28Oct 31Nov 3Nov 5Nov 7Nov 10Nov 13Nov 17
32°FNov 1Nov 5Nov 10Nov 12Nov 14Nov 17Nov 20Nov 24Nov 28
28°FNov 11Nov 14Nov 18Nov 22Nov 25Nov 28Dec 1Dec 5Dec 11
24°FNov 19Nov 26Nov 30Dec 3Dec 7Dec 12Dec 19Dec 25Jan 4
20°F88% of yrsNov 30Dec 5Dec 12Dec 19Dec 25Dec 31Jan 7Jan 16Jan 31
16°F52% of yrsDec 5Dec 12Dec 20Dec 27Jan 1Jan 9Jan 16Jan 25Feb 5

Freeze probabilities 1991–2020 at Andrews, 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 79714 →Compare Andrews with another place →

Weather by month in Andrews

July is the warmest month at Andrews, TX, averaging 96°F by day and 69°F at night; January is the coldest at 60°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 October the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 79% of years and April still brings one in 26% of years.

Warmth for growing adds up to 6,025 growing degree days a year (base 50°F), fewer than at 70% of the 351 Texas stations. 43% of them (2,561) have built up by the end of June, and July adds the most, 1,006. Precipitation totals 14.0 inches a year, most in June (2.4") and least in January (0.6"); May to September bring 64% of it.

Monthly normals 1991–2020 at Andrews, TX
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan60310.6100%1846
Feb65350.699%1196
Mar73420.779%6261
Apr82490.626%1469
May89601.30%0753
Jun95672.40%0936
Jul96691.70%01006
Aug95691.60%0981
Sep88621.90%0753
Oct80521.39%<1494
Nov68390.692%7176
Dec60320.7100%1654

Monthly normals 1991–2020 at Andrews, TX (3,192 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, Seminole, TX, 26 miles north of Andrews, has a last frost 15 days later (April 2), a first frost 8 days earlier (November 6), a season 21 days shorter.

Frost dates for 79360 (Seminole) →

When it snows in Andrews, Texas

The first measurable snow (0.1 inch or more) in Andrews usually arrives around January 17, and the last of the season around January 28. Those are the middle dates across the winters of 1991–2020 at Andrews, TX, 0.9 miles away: half of years saw snow earlier, half later. Snow fell in 50% of those winters. The last 32°F night of spring typically comes 49 days after the last snow.

Planting calendar for 79714

What to do and when, from the 50% frost dates for Andrews, Texas
WhenWhat to do
January 7 – January 21Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 21 – February 4Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 18 – March 4Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 18 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 22Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 31Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 14 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 79714 is under a mile from Andrews, TX, which stands at 3,192 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 79714 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