USDA Hardiness Zone 8a
Frost Dates for 79359 — Seagraves, Texas
NOAA 1991–2020 normals from Denver City, TX (3,590 ft), 15 miles west.
Updated
In Seagraves, the last spring frost (32°F) is around April 7 in half of years and has passed by April 23 in nine years out of ten. The first fall frost comes around November 4, as early as October 19 one year in ten, leaving a typical freeze-free season of 209 days (NOAA, Denver City, TX).
- Last spring frost
- April 7
- First fall frost
- November 4
- Growing season
- 209 days
- Hardiness zone
- 8a
50% probability
50% probability
freeze-free, 50%
10 to 15°F (-12.2 to -9.4°C) coldest night
- First snow
- December 10
- Last snow
- January 28
- Winters with snow
- 88%
- Snow per year
- 4.9"
median, 1991–2020
median, 1991–2020
23 of 26 observed
NOAA normal
Frost risk by date in Seagraves
Half of springs at Denver City, TX see their last 32°F night by April 7; only one in ten is past it by March 20, and one in ten still has one after April 23. Planting tender crops after April 13 leaves a 30% risk of a frost on them, after April 17 20%, and after April 23 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 91% of the 339 Texas stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 4 in half of years, as early as October 19 one year in ten, and holds off past November 16 one year in ten. A hard freeze of 28°F follows 9 days later, around November 13; in spring the one-in-ten date for 28°F is April 12, 11 days before the 32°F one. The freeze-free season lasts 209 days in a typical year, shorter than at 91% of the 339 Texas stations; it reaches 232 days one year in ten and falls short of 188 one year in ten. On average 88 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 12 days longer, to about April 19, and return around October 26. Severe cold of 16°F or below comes in 93% of winters, usually between December 21 and February 4.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 2 | Apr 8 | Apr 13 | Apr 16 | Apr 19 | Apr 21 | Apr 24 | Apr 27 | May 1 |
| 32°F | Mar 20 | Mar 28 | Apr 1 | Apr 4 | Apr 7 | Apr 10 | Apr 13 | Apr 17 | Apr 23 |
| 28°F | Mar 4 | Mar 10 | Mar 15 | Mar 20 | Mar 24 | Mar 29 | Apr 1 | Apr 5 | Apr 12 |
| 24°F | Feb 19 | Feb 26 | Mar 2 | Mar 6 | Mar 9 | Mar 13 | Mar 17 | Mar 22 | Mar 29 |
| 20°F | Jan 26 | Feb 5 | Feb 13 | Feb 19 | Feb 25 | Feb 28 | Mar 5 | Mar 10 | Mar 17 |
| 16°F93% of yrs | Dec 30 | Jan 10 | Jan 20 | Jan 29 | Feb 4 | Feb 11 | Feb 21 | Feb 28 | Mar 7 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 12 | Oct 17 | Oct 20 | Oct 23 | Oct 26 | Oct 29 | Nov 1 | Nov 3 | Nov 6 |
| 32°F | Oct 19 | Oct 25 | Oct 29 | Nov 1 | Nov 4 | Nov 6 | Nov 8 | Nov 12 | Nov 16 |
| 28°F | Oct 30 | Nov 4 | Nov 7 | Nov 11 | Nov 13 | Nov 16 | Nov 19 | Nov 22 | Nov 28 |
| 24°F | Nov 8 | Nov 14 | Nov 18 | Nov 22 | Nov 25 | Nov 28 | Dec 1 | Dec 4 | Dec 9 |
| 20°F | Nov 19 | Nov 26 | Nov 30 | Dec 2 | Dec 6 | Dec 10 | Dec 15 | Dec 21 | Dec 28 |
| 16°F93% of yrs | Nov 27 | Dec 4 | Dec 10 | Dec 15 | Dec 21 | Dec 25 | Jan 1 | Jan 9 | Jan 20 |
Freeze probabilities 1991–2020 at Denver City, 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 79359 →Compare Seagraves with another place →
Weather by month in Seagraves
July is the warmest month at Denver City, TX, averaging 93°F by day and 65°F at night; January is the coldest at 56°F and 27°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 70% of years.
Warmth for growing adds up to 4,844 growing degree days a year (base 50°F), fewer than at 93% of the 351 Texas stations. 40% of them (1,937) have built up by the end of June, and July adds the most, 899. Precipitation totals 19.1 inches a year, most in September (2.7") and least in January (0.7"); May to September bring 62% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 56 | 27 | 0.7 | 100% | 24 | 20 |
| Feb | 61 | 29 | 0.8 | 100% | 18 | 47 |
| Mar | 69 | 36 | 1.1 | 99% | 9 | 153 |
| Apr | 77 | 43 | 1.2 | 70% | 2 | 316 |
| May | 84 | 54 | 2.0 | 3% | <1 | 586 |
| Jun | 92 | 63 | 2.3 | 0% | 0 | 816 |
| Jul | 93 | 65 | 2.5 | 0% | 0 | 899 |
| Aug | 91 | 65 | 2.4 | 0% | 0 | 865 |
| Sep | 85 | 58 | 2.7 | 0% | 0 | 634 |
| Oct | 76 | 47 | 1.6 | 36% | 1 | 372 |
| Nov | 65 | 35 | 1.0 | 99% | 11 | 113 |
| Dec | 57 | 28 | 0.8 | 100% | 23 | 24 |
Monthly normals 1991–2020 at Denver City, TX (3,590 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, 16 miles south of Seagraves and 254 feet lower, has a last frost 5 days earlier (April 2), a first frost 2 days later (November 6), a season 10 days longer.
When it snows in Seagraves, Texas
The first measurable snow (0.1 inch or more) in Seagraves usually arrives around December 10, and the last of the season around January 28. Those are the middle dates across the winters of 1991–2020 at Denver City, TX, 15.3 miles away: half of years saw snow earlier, half later. Snow fell in 88% of those winters. The last 32°F night of spring typically comes 69 days after the last snow.
Planting calendar for 79359
| When | What to do |
|---|---|
| January 27 – February 10 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 10 – February 24 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 10 – March 24 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 7 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 12 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 21 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 4 onward | Plant 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 79359 is 15 miles from Denver City, TX, which stands at 3,590 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 79323 (Denver City). The 2023 USDA Plant Hardiness Zone Map lists ZIP 79359 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.
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.