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USDA Hardiness Zone 7b

Frost Dates for 79424 — Lubbock, Texas

NOAA 1991–2020 normals from Lubbock WFO, TX (3,235 ft), 3 miles east.

Updated

In Lubbock, the last spring frost (32°F) is around March 24 in half of years and has passed by April 15 in nine years out of ten. The first fall frost comes around November 11, as early as October 28 one year in ten, leaving a typical freeze-free season of 233 days (NOAA, Lubbock WFO, TX).

Last spring frost
March 24

50% probability

First fall frost
November 11

50% probability

Growing season
233 days

freeze-free, 50%

Hardiness zone
7b

5 to 10°F (-15.0 to -12.2°C) coldest night

First snow
December 3

median, 1991–2020

Last snow
March 6

median, 1991–2020

Winters with snow
100%

30 of 30 observed

Snow per year
7"

NOAA normal

Frost risk by date in Lubbock

Half of springs at Lubbock WFO, TX see their last 32°F night by March 24; only one in ten is past it by March 4, and one in ten still has one after April 15. Planting tender crops after April 2 leaves a 30% risk of a frost on them, after April 7 20%, and after April 15 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 11 in half of years, as early as October 28 one year in ten, and holds off past November 26 one year in ten. A hard freeze of 28°F follows 10 days later, around November 21; in spring the one-in-ten date for 28°F is April 1, 14 days before the 32°F one. The freeze-free season lasts 233 days in a typical year, shorter than at 72% of the 339 Texas stations; it reaches 257 days one year in ten and falls short of 205 one year in ten. On average 61 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 14 days longer, to about April 7, and return around November 2. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 72%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 19Mar 26Mar 31Apr 3Apr 7Apr 10Apr 15Apr 18Apr 23
32°FMar 4Mar 9Mar 14Mar 19Mar 24Mar 29Apr 2Apr 7Apr 15
28°FFeb 20Feb 26Mar 2Mar 5Mar 8Mar 12Mar 16Mar 24Apr 1
24°FFeb 2Feb 12Feb 18Feb 22Feb 26Mar 1Mar 4Mar 8Mar 15
20°F98% of yrsJan 7Jan 21Jan 31Feb 6Feb 11Feb 16Feb 21Feb 26Mar 4
16°F72% of yrsDec 18Dec 28Jan 4Jan 12Jan 21Jan 30Feb 7Feb 15Feb 24
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 19Oct 24Oct 28Oct 31Nov 2Nov 4Nov 7Nov 11Nov 15
32°FOct 28Nov 1Nov 5Nov 8Nov 11Nov 14Nov 17Nov 21Nov 26
28°FNov 4Nov 10Nov 14Nov 17Nov 21Nov 24Nov 27Dec 1Dec 6
24°FNov 13Nov 20Nov 25Nov 28Dec 2Dec 5Dec 9Dec 15Dec 21
20°F98% of yrsNov 24Dec 2Dec 6Dec 12Dec 17Dec 21Dec 27Jan 3Jan 13
16°F72% of yrsDec 6Dec 13Dec 18Dec 23Dec 29Jan 3Jan 11Jan 22Feb 5

Freeze probabilities 1991–2020 at Lubbock WFO, 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 79424 →Compare Lubbock with another place →

Compared with the next station

The nearest other station, Lubbock, TX, 12 miles northeast of Lubbock, has a last frost 11 days later (April 4), a first frost 9 days earlier (November 2), a season 23 days shorter.

Frost dates for 79415 (Lubbock) →

When it snows in Lubbock, Texas

The first measurable snow (0.1 inch or more) in Lubbock usually arrives around December 3, and the last of the season around March 6. Those are the middle dates across the winters of 1991–2020 at Lubbock, TX, 11.9 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 18 days after the last snow.

Planting calendar for 79424

What to do and when, from the 50% frost dates for Lubbock, Texas
WhenWhat to do
January 13 – January 27Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 27 – February 10Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 24 – March 10Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 24 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 19Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 28Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 11 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 79424 is 3 miles from Lubbock WFO, TX, which stands at 3,235 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 13 other ZIP codes share the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 79424 in zone 7b, the band where the coldest night of the year averaged 5 to 10°F (-15.0 to -12.2°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.

ZIP codes measured at the same station

Other zone 7b places in Texas