USDA Hardiness Zone 9b
Frost Dates for 77514 — Anahuac, Texas
NOAA 1991–2020 normals from Anahuac, TX (24 ft), 7 miles north.
Updated
In Anahuac, the last spring frost (32°F) is around February 12 in half of years and has passed by March 10 in nine years out of ten. The first fall frost comes around December 6, as early as November 16 one year in ten, leaving a typical freeze-free season of 302 days (NOAA, Anahuac, TX).
- Last spring frost
- February 12
- First fall frost
- December 6
- Growing season
- 302 days
- Hardiness zone
- 9b
50% probability
50% probability
freeze-free, 50%
25 to 30°F (-3.9 to -1.1°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 5%
- Snow per year
- 0.2"
median, 1991–2020
median, 1991–2020
1 of 20 observed
NOAA normal
Frost risk by date in Anahuac
Half of springs at Anahuac, TX see their last 32°F night by February 12; only one in ten is past it by January 10, and one in ten still has one after March 10. Planting tender crops after February 25 leaves a 30% risk of a frost on them, after March 3 20%, and after March 10 10%. The 26 days between the even-odds date and the one-in-ten date is wider than at 84% 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 December 6 in half of years, as early as November 16 one year in ten, and holds off past January 7 one year in ten. A hard freeze of 28°F follows 25 days later, around December 31; in spring the one-in-ten date for 28°F is February 27, 11 days before the 32°F one. The freeze-free season lasts 302 days in a typical year, longer than at 89% of the 339 Texas stations; it reaches 338 days one year in ten and falls short of 265 one year in ten. On average 11 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 16 days longer, to about February 28, and return around November 24. A 24°F night is unusual: 31% of winters had one.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Feb 3 | Feb 13 | Feb 19 | Feb 24 | Feb 28 | Mar 5 | Mar 9 | Mar 15 | Mar 22 |
| 32°F98% of yrs | Jan 10 | Jan 24 | Jan 30 | Feb 5 | Feb 12 | Feb 19 | Feb 25 | Mar 3 | Mar 10 |
| 28°F77% of yrs | Dec 19 | Jan 1 | Jan 12 | Jan 20 | Jan 25 | Jan 31 | Feb 5 | Feb 14 | Feb 27 |
| 24°F31% of yrs | too rare for a date | ||||||||
| 20°F6% of yrs | too rare for a date | ||||||||
| 16°F0% of yrs | too rare for a date | ||||||||
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Nov 5 | Nov 10 | Nov 16 | Nov 20 | Nov 24 | Nov 28 | Dec 1 | Dec 5 | Dec 13 |
| 32°F98% of yrs | Nov 16 | Nov 24 | Nov 29 | Dec 3 | Dec 6 | Dec 12 | Dec 21 | Dec 30 | Jan 7 |
| 28°F77% of yrs | Nov 29 | Dec 5 | Dec 14 | Dec 23 | Dec 31 | Jan 4 | Jan 11 | Jan 18 | Feb 1 |
| 24°F31% of yrs | too rare for a date | ||||||||
| 20°F6% of yrs | too rare for a date | ||||||||
| 16°F0% of yrs | too rare for a date | ||||||||
Freeze probabilities 1991–2020 at Anahuac, 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 77514 →Compare Anahuac with another place →
Weather by month in Anahuac
August is the warmest month at Anahuac, TX, averaging 92°F by day and 74°F at night; January is the coldest at 62°F and 43°F. From April to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 55% of years and March still brings one in 24% of years.
Warmth for growing adds up to 7,049 growing degree days a year (base 50°F), more than at 69% of the 351 Texas stations. 42% of them (2,975) have built up by the end of June, and August adds the most, 1,021. Precipitation totals 59.8 inches a year, most in August (7.0") and least in February (3.1"); May to September bring 52% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 62 | 43 | 4.6 | 80% | 5 | 153 |
| Feb | 66 | 47 | 3.1 | 55% | 2 | 210 |
| Mar | 71 | 53 | 3.6 | 24% | 1 | 383 |
| Apr | 77 | 59 | 4.4 | 0% | 0 | 534 |
| May | 83 | 67 | 5.4 | 0% | 0 | 772 |
| Jun | 89 | 73 | 5.8 | 0% | 0 | 922 |
| Jul | 91 | 75 | 5.7 | 0% | 0 | 1020 |
| Aug | 92 | 74 | 7.0 | 0% | 0 | 1021 |
| Sep | 88 | 70 | 7.0 | 0% | 0 | 859 |
| Oct | 81 | 60 | 4.8 | 0% | 0 | 636 |
| Nov | 72 | 51 | 3.9 | 32% | 1 | 350 |
| Dec | 64 | 45 | 4.5 | 70% | 3 | 187 |
Monthly normals 1991–2020 at Anahuac, TX (24 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, Baytown, TX, 25 miles northwest of Anahuac, has a last frost 8 days later (February 20), a first frost 2 days earlier (December 4), a season 10 days shorter.
When it snows in Anahuac, Texas
Measurable snow is rare here: only 1 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Anahuac, TX, 7 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 77514
| When | What to do |
|---|---|
| December 4 – December 18 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| December 18 – January 1 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| January 15 – January 29 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| February 12 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by September 13 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by November 22 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| December 6 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 77514 is 7 miles from Anahuac, TX, which stands at 24 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 77665 (Winnie). The 2023 USDA Plant Hardiness Zone Map lists ZIP 77514 in zone 9b, the band where the coldest night of the year averaged 25 to 30°F (-3.9 to -1.1°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.