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USDA Hardiness Zone 7a

Frost Dates for 79065 — Pampa, Texas

NOAA 1991–2020 normals from Pampa #2, TX (3,150 ft), 2 miles northwest.

Updated

In Pampa, the last spring frost (32°F) is around April 14 in half of years and has passed by April 29 in nine years out of ten. The first fall frost comes around October 28, as early as October 13 one year in ten, leaving a typical freeze-free season of 194 days (NOAA, Pampa #2, TX).

Last spring frost
April 14

50% probability

First fall frost
October 28

50% probability

Growing season
194 days

freeze-free, 50%

Hardiness zone
7a

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

First snow
December 3

median, 1991–2020

Last snow
March 19

median, 1991–2020

Winters with snow
100%

30 of 30 observed

Snow per year
15.7"

NOAA normal

Frost risk by date in Pampa

Half of springs at Pampa #2, TX see their last 32°F night by April 14; only one in ten is past it by March 28, and one in ten still has one after April 29. Planting tender crops after April 20 leaves a 30% risk of a frost on them, after April 23 20%, and after April 29 10%. The 15 days between the even-odds date and the one-in-ten date is narrower than at 94% of the 339 Texas stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 28 in half of years, as early as October 13 one year in ten, and holds off past November 9 one year in ten. A hard freeze of 28°F follows 8 days later, around November 5; in spring the one-in-ten date for 28°F is April 21, 8 days before the 32°F one. The freeze-free season lasts 194 days in a typical year, shorter than at 96% of the 339 Texas stations; it reaches 216 days one year in ten and falls short of 174 one year in ten. On average 110 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 24, and return around October 19. Severe cold of 16°F or below comes every winter, usually between December 2 and February 27.

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

Freeze probabilities 1991–2020 at Pampa #2, 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 79065 →Compare Pampa with another place →

Weather by month in Pampa

July is the warmest month at Pampa #2, TX, averaging 93°F by day and 67°F at night; January is the coldest at 50°F and 23°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 84% of years.

Warmth for growing adds up to 4,464 growing degree days a year (base 50°F), fewer than at 96% of the 351 Texas stations. 37% of them (1,634) have built up by the end of June, and July adds the most, 925. Precipitation totals 22.8 inches a year, most in June (3.2") and least in February (0.6"); May to September bring 59% of it.

Monthly normals 1991–2020 at Pampa #2, TX
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan50230.8100%2710
Feb54260.6100%2223
Mar63331.5100%14101
Apr71422.284%4239
May80522.86%<1497
Jun88633.20%0763
Jul93672.50%0925
Aug91663.10%0882
Sep84581.91%<1627
Oct73452.262%3304
Nov60331.0100%1580
Dec50251.0100%2612

Monthly normals 1991–2020 at Pampa #2, TX (3,150 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, Miami, TX, 21 miles northeast of Pampa and 403 feet lower, has a last frost 2 days later (April 16), a first frost 2 days earlier (October 26), a season 2 days shorter.

Frost dates for 79014 (Canadian) →

When it snows in Pampa, Texas

The first measurable snow (0.1 inch or more) in Pampa usually arrives around December 3, and the last of the season around March 19. Those are the middle dates across the winters of 1991–2020 at Pampa #2, TX, 1.6 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 26 days after the last snow.

Planting calendar for 79065

What to do and when, from the 50% frost dates for Pampa, Texas
WhenWhat to do
February 3 – February 17Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 17 – March 3Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 17 – March 31Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 14 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 5Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 14Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 28 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 79065 is 2 miles from Pampa #2, TX, which stands at 3,150 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 79065 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