USDA Hardiness Zone 8b
Frost Dates for 79735 — Fort Stockton, Texas
NOAA 1991–2020 normals from Fort Stockton, TX (3,038 ft), 4 miles northwest.
Updated
In Fort Stockton, the last spring frost (32°F) is around March 8 in half of years and has passed by April 1 in nine years out of ten. The first fall frost comes around November 20, as early as November 3 one year in ten, leaving a typical freeze-free season of 254 days (NOAA, Fort Stockton, TX).
- Last spring frost
- March 8
- First fall frost
- November 20
- Growing season
- 254 days
- Hardiness zone
- 8b
50% probability
50% probability
freeze-free, 50%
15 to 20°F (-9.4 to -6.7°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 38%
- Snow per year
- 1.4"
median, 1991–2020
median, 1991–2020
10 of 26 observed
NOAA normal
Frost risk by date in Fort Stockton
Half of springs at Fort Stockton, TX see their last 32°F night by March 8; only one in ten is past it by February 16, and one in ten still has one after April 1. Planting tender crops after March 17 leaves a 30% risk of a frost on them, after March 22 20%, and after April 1 10%. The 24 days between the even-odds date and the one-in-ten date is wider than at 76% 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 20 in half of years, as early as November 3 one year in ten, and holds off past December 7 one year in ten. A hard freeze of 28°F follows 11 days later, around December 1; in spring the one-in-ten date for 28°F is March 16, 16 days before the 32°F one. The freeze-free season lasts 254 days in a typical year, longer than at 58% of the 339 Texas stations; it reaches 282 days one year in ten and falls short of 227 one year in ten. On average 40 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 18 days longer, to about March 26, and return around November 9. Nights of 24°F, cold enough to damage hardier plants, come in 93% of winters and 16°F in 19%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 3 | Mar 10 | Mar 17 | Mar 21 | Mar 26 | Mar 31 | Apr 4 | Apr 9 | Apr 16 |
| 32°F | Feb 16 | Feb 23 | Feb 28 | Mar 4 | Mar 8 | Mar 13 | Mar 17 | Mar 22 | Apr 1 |
| 28°F | Jan 25 | Feb 3 | Feb 12 | Feb 18 | Feb 23 | Feb 28 | Mar 4 | Mar 9 | Mar 16 |
| 24°F93% of yrs | Dec 31 | Jan 13 | Jan 22 | Jan 30 | Feb 5 | Feb 11 | Feb 17 | Feb 25 | Mar 5 |
| 20°F55% of yrs | Dec 14 | Dec 28 | Jan 3 | Jan 11 | Jan 22 | Jan 31 | Feb 7 | Feb 14 | Feb 22 |
| 16°F19% of yrs | too rare for a date | ||||||||
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 25 | Oct 31 | Nov 4 | Nov 7 | Nov 9 | Nov 12 | Nov 15 | Nov 20 | Nov 24 |
| 32°F | Nov 3 | Nov 8 | Nov 12 | Nov 15 | Nov 20 | Nov 23 | Nov 26 | Dec 1 | Dec 7 |
| 28°F | Nov 12 | Nov 18 | Nov 24 | Nov 27 | Dec 1 | Dec 5 | Dec 10 | Dec 17 | Dec 25 |
| 24°F93% of yrs | Nov 23 | Nov 30 | Dec 8 | Dec 16 | Dec 21 | Dec 28 | Jan 3 | Jan 12 | Jan 28 |
| 20°F55% of yrs | Dec 3 | Dec 13 | Dec 21 | Dec 28 | Jan 2 | Jan 9 | Jan 20 | Feb 1 | Feb 9 |
| 16°F19% of yrs | too rare for a date | ||||||||
Freeze probabilities 1991–2020 at Fort Stockton, 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 79735 →Compare Fort Stockton with another place →
Weather by month in Fort Stockton
July is the warmest month at Fort Stockton, TX, averaging 94°F by day and 71°F at night; January is the coldest at 61°F and 36°F. A freezing night is all but certain in every month from December 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 64% of years and April still brings one in 11% of years.
Warmth for growing adds up to 6,479 growing degree days a year (base 50°F), more than at 54% of the 351 Texas stations. 43% of them (2,789) have built up by the end of June, and July adds the most, 1,014. Precipitation totals 13.9 inches a year, most in September (2.0") and least in February (0.5"); May to September bring 64% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 61 | 36 | 0.7 | 100% | 13 | 88 |
| Feb | 65 | 39 | 0.5 | 95% | 7 | 140 |
| Mar | 73 | 46 | 0.6 | 64% | 3 | 320 |
| Apr | 81 | 53 | 0.8 | 11% | <1 | 512 |
| May | 89 | 62 | 1.4 | 0% | 0 | 781 |
| Jun | 94 | 69 | 1.9 | 0% | 0 | 948 |
| Jul | 94 | 71 | 1.8 | 0% | 0 | 1014 |
| Aug | 95 | 70 | 1.8 | 0% | 0 | 1004 |
| Sep | 88 | 64 | 2.0 | 0% | 0 | 780 |
| Oct | 81 | 55 | 1.3 | 7% | <1 | 562 |
| Nov | 69 | 43 | 0.6 | 78% | 4 | 229 |
| Dec | 61 | 37 | 0.5 | 100% | 12 | 102 |
Monthly normals 1991–2020 at Fort Stockton, TX (3,038 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
When it snows in Fort Stockton, Texas
Measurable snow is rare here: only 10 of 26 winters from 1991 to 2020 recorded 0.1 inch or more at Fort Stockton, TX, 4.3 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 79735
| When | What to do |
|---|---|
| December 28 – January 11 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| January 11 – January 25 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| February 8 – February 22 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| March 8 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 28 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by November 6 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 20 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 79735 is 4 miles from Fort Stockton, TX, which stands at 3,038 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 79735 in zone 8b, the band where the coldest night of the year averaged 15 to 20°F (-9.4 to -6.7°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.