USDA Hardiness Zone 8a
Frost Dates for 76365 — Henrietta, Texas
NOAA 1991–2020 normals from Henrietta, TX (930 ft), 4 miles north.
Updated
In Henrietta, the last spring frost (32°F) is around April 1 in half of years and has passed by April 17 in nine years out of ten. The first fall frost comes around November 8, as early as October 23 one year in ten, leaving a typical freeze-free season of 221 days (NOAA, Henrietta, TX).
- Last spring frost
- April 1
- First fall frost
- November 8
- Growing season
- 221 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
- Rare
- Last snow
- Rare
- Winters with snow
- 47%
- Snow per year
- 0.9"
median, 1991–2020
median, 1991–2020
7 of 15 observed
NOAA normal
Frost risk by date in Henrietta
Half of springs at Henrietta, TX see their last 32°F night by April 1; only one in ten is past it by March 13, and one in ten still has one after April 17. Planting tender crops after April 7 leaves a 30% risk of a frost on them, after April 10 20%, and after April 17 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 8 in half of years, as early as October 23 one year in ten, and holds off past November 29 one year in ten. A hard freeze of 28°F follows 10 days later, around November 18; in spring the one-in-ten date for 28°F is April 8, 9 days before the 32°F one. The freeze-free season lasts 221 days in a typical year, shorter than at 86% of the 339 Texas stations; it reaches 249 days one year in ten and falls short of 198 one year in ten. On average 70 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 8 days longer, to about April 9, and return around November 1. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 90%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 27 | Mar 31 | Apr 3 | Apr 6 | Apr 9 | Apr 13 | Apr 16 | Apr 19 | Apr 24 |
| 32°F | Mar 13 | Mar 20 | Mar 24 | Mar 29 | Apr 1 | Apr 4 | Apr 7 | Apr 10 | Apr 17 |
| 28°F | Feb 28 | Mar 5 | Mar 11 | Mar 16 | Mar 20 | Mar 23 | Mar 27 | Apr 1 | Apr 8 |
| 24°F | Feb 15 | Feb 23 | Feb 27 | Mar 2 | Mar 6 | Mar 10 | Mar 14 | Mar 19 | Mar 25 |
| 20°F | Jan 24 | Feb 3 | Feb 9 | Feb 16 | Feb 22 | Feb 27 | Mar 2 | Mar 6 | Mar 12 |
| 16°F90% of yrs | Dec 31 | Jan 15 | Jan 24 | Jan 31 | Feb 5 | Feb 9 | Feb 17 | Feb 26 | Mar 3 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 16 | Oct 21 | Oct 24 | Oct 28 | Nov 1 | Nov 3 | Nov 5 | Nov 9 | Nov 14 |
| 32°F | Oct 23 | Oct 29 | Nov 1 | Nov 5 | Nov 8 | Nov 12 | Nov 15 | Nov 20 | Nov 29 |
| 28°F | Nov 1 | Nov 6 | Nov 11 | Nov 14 | Nov 18 | Nov 22 | Nov 27 | Dec 1 | Dec 7 |
| 24°F | Nov 10 | Nov 16 | Nov 21 | Nov 26 | Nov 30 | Dec 4 | Dec 8 | Dec 13 | Dec 22 |
| 20°F | Nov 19 | Nov 27 | Dec 1 | Dec 7 | Dec 12 | Dec 19 | Dec 26 | Jan 2 | Jan 12 |
| 16°F90% of yrs | Dec 1 | Dec 9 | Dec 17 | Dec 24 | Dec 31 | Jan 6 | Jan 14 | Jan 23 | Feb 4 |
Freeze probabilities 1991–2020 at Henrietta, 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 76365 →Compare Henrietta with another place →
Weather by month in Henrietta
July is the warmest month at Henrietta, TX, averaging 97°F by day and 71°F at night; January is the coldest at 55°F and 29°F. A freezing night is all but certain in every month from December 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 51% of years.
Warmth for growing adds up to 5,657 growing degree days a year (base 50°F), fewer than at 85% of the 351 Texas stations. 38% of them (2,164) have built up by the end of June, and July adds the most, 1,050. Precipitation totals 32.1 inches a year, most in May (4.7") and least in January (1.7"); May to September bring 49% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 55 | 29 | 1.7 | 100% | 21 | 28 |
| Feb | 58 | 32 | 1.8 | 100% | 14 | 52 |
| Mar | 68 | 40 | 2.6 | 95% | 7 | 200 |
| Apr | 76 | 48 | 2.7 | 51% | 1 | 362 |
| May | 83 | 59 | 4.7 | 0% | 0 | 649 |
| Jun | 91 | 67 | 3.6 | 0% | 0 | 873 |
| Jul | 97 | 71 | 1.8 | 0% | 0 | 1050 |
| Aug | 96 | 70 | 3.1 | 0% | 0 | 1019 |
| Sep | 88 | 62 | 2.6 | 0% | 0 | 759 |
| Oct | 78 | 51 | 3.6 | 25% | 1 | 464 |
| Nov | 66 | 39 | 2.2 | 89% | 7 | 157 |
| Dec | 56 | 31 | 1.7 | 99% | 19 | 43 |
Monthly normals 1991–2020 at Henrietta, TX (930 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, Wichita Falls Municipal Airport, TX, 23 miles northwest of Henrietta, has a last frost 6 days earlier (March 26), a first frost 1 day later (November 9), a season 7 days longer.
When it snows in Henrietta, Texas
Measurable snow is rare here: only 7 of 15 winters from 1991 to 2020 recorded 0.1 inch or more at Henrietta, TX, 3.6 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 76365
| When | What to do |
|---|---|
| January 21 – February 4 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 4 – February 18 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 4 – March 18 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 1 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 16 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 25 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 8 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 76365 is 4 miles from Henrietta, TX, which stands at 930 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 76365 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.