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USDA Hardiness Zone 7a

Frost Dates for 79036 — Fritch, Texas

NOAA 1991–2020 normals from Sanford Dam, TX (2,936 ft), 7 miles northeast.

Updated

In Fritch, the last spring frost (32°F) is around April 20 in half of years and has passed by May 4 in nine years out of ten. The first fall frost comes around October 25, as early as October 11 one year in ten, leaving a typical freeze-free season of 187 days (NOAA, Sanford Dam, TX).

Last spring frost
April 20

50% probability

First fall frost
October 25

50% probability

Growing season
187 days

freeze-free, 50%

Hardiness zone
7a

0 to 5°F (-17.8 to -15.0°C) coldest night

First snow
November 29

median, 1991–2020

Last snow
March 19

median, 1991–2020

Winters with snow
100%

21 of 21 observed

Snow per year
15"

NOAA normal

Frost risk by date in Fritch

Half of springs at Sanford Dam, TX see their last 32°F night by April 20; only one in ten is past it by April 5, and one in ten still has one after May 4. Planting tender crops after April 27 leaves a 30% risk of a frost on them, after April 30 20%, and after May 4 10%. The 14 days between the even-odds date and the one-in-ten date is narrower than at 96% of the 339 Texas stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 25 in half of years, as early as October 11 one year in ten, and holds off past November 4 one year in ten. A hard freeze of 28°F follows 7 days later, around November 1; in spring the one-in-ten date for 28°F is April 26, 8 days before the 32°F one. The freeze-free season lasts 187 days in a typical year, shorter than at 98% of the 339 Texas stations; it reaches 205 days one year in ten and falls short of 166 one year in ten. On average 103 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 10 days longer, to about April 30, and return around October 15. Severe cold of 16°F or below comes every winter, usually between November 29 and March 2.

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

Freeze probabilities 1991–2020 at Sanford Dam, 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 79036 →Compare Fritch with another place →

Weather by month in Fritch

July is the warmest month at Sanford Dam, TX, averaging 97°F by day and 66°F at night; January is the coldest at 52°F and 21°F. A freezing night is all but certain in every month from November to April (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 18% of years.

Warmth for growing adds up to 4,609 growing degree days a year (base 50°F), fewer than at 94% of the 351 Texas stations. 37% of them (1,688) have built up by the end of June, and July adds the most, 964. Precipitation totals 19.3 inches a year, most in June (3.0") and least in February (0.5"); May to September bring 63% of it.

Monthly normals 1991–2020 at Sanford Dam, TX
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan52210.6100%277
Feb55240.5100%2122
Mar65311.2100%1297
Apr73401.795%4243
May83502.318%<1517
Jun92613.00%0802
Jul97662.30%0964
Aug94642.90%0905
Sep87571.61%0650
Oct75431.979%2317
Nov63310.7100%1276
Dec52230.6100%259

Monthly normals 1991–2020 at Sanford Dam, TX (2,936 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, Borger, TX, 12 miles east of Fritch, has a last frost 8 days earlier (April 12), a first frost 3 days later (October 28), a season 11 days longer.

Frost dates for 79007 (Borger) →

When it snows in Fritch, Texas

The first measurable snow (0.1 inch or more) in Fritch usually arrives around November 29, and the last of the season around March 19. Those are the middle dates across the winters of 1991–2020 at Borger, TX, 12.3 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 32 days after the last snow.

Planting calendar for 79036

What to do and when, from the 50% frost dates for Fritch, Texas
WhenWhat to do
February 9 – February 23Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 23 – March 9Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 23 – April 6Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 20 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 2Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 11Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 25 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 79036 is 7 miles from Sanford Dam, TX, which stands at 2,936 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 79036 in zone 7a, the band where the coldest night of the year averaged 0 to 5°F (-17.8 to -15.0°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 7a places in Texas