USDA Hardiness Zone 10a
Frost Dates for 77650 — Crystal Beach, Texas
NOAA 1991–2020 normals from Galveston, TX (7 ft), 12 miles southwest.
Updated
A freeze (32°F) reaches Crystal Beach in 73% of winters. When it does, the first freeze of winter comes around January 1 and the last freeze of winter around January 25; after February 21 the chance of another is under 7%.
- Last freeze
- January 25
- First freeze
- January 1
- Winters with a freeze
- 73%
- Hardiness zone
- 10a
50%, in freezing years
50%, in freezing years
32°F or below, 1991–2020
30 to 35°F (-1.1 to 1.7°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 6%
- Snow per year
- 0.1"
median, 1991–2020
median, 1991–2020
1 of 16 observed
NOAA normal
Frost risk by date in Crystal Beach
In the 73% of winters that bring a 32°F night, half of winters at Galveston, TX see their last 32°F night by January 25; only one in ten is past it by December 23, and one in ten still has one after February 21. Counting the winters with no freeze at all, the risk of a 32°F night after February 21 is under 7% and after January 25 37%. The 27 days between the even-odds date and the one-in-ten date is wider than at 86% 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 January 1 in half of years, as early as December 9 one year in ten, and holds off past February 1 one year in ten. A hard freeze of 28°F is less common: it came in 36% of winters. On average 3 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 February 8, and return around December 19. A 24°F night is unusual: 11% of winters had one.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F97% of yrs | Jan 4 | Jan 21 | Jan 30 | Feb 3 | Feb 8 | Feb 16 | Feb 22 | Mar 1 | Mar 8 |
| 32°F73% of yrs | Dec 23 | Jan 2 | Jan 9 | Jan 17 | Jan 25 | Jan 30 | Feb 2 | Feb 10 | Feb 21 |
| 28°F36% of yrs | too rare for a date | ||||||||
| 24°F11% of yrs | too rare for a date | ||||||||
| 20°F3% 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°F97% of yrs | Nov 27 | Dec 4 | Dec 8 | Dec 14 | Dec 19 | Dec 24 | Jan 1 | Jan 6 | Jan 17 |
| 32°F73% of yrs | Dec 9 | Dec 16 | Dec 22 | Dec 26 | Jan 1 | Jan 4 | Jan 9 | Jan 16 | Feb 1 |
| 28°F36% of yrs | too rare for a date | ||||||||
| 24°F11% of yrs | too rare for a date | ||||||||
| 20°F3% of yrs | too rare for a date | ||||||||
| 16°F0% of yrs | too rare for a date | ||||||||
Freeze probabilities 1991–2020 at Galveston, 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 77650 →Compare Crystal Beach with another place →
Weather by month in Crystal Beach
July is the warmest month at Galveston, TX, averaging 90°F by day and 80°F at night; January is the coldest at 63°F and 48°F. From March to November the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 21% of years.
Warmth for growing adds up to 7,898 growing degree days a year (base 50°F), more than at 88% of the 351 Texas stations. 42% of them (3,316) have built up by the end of June, and July adds the most, 1,082.
| Month | High °F | Low °F | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|
| Jan | 63 | 48 | 48% | 2 | 206 |
| Feb | 65 | 51 | 21% | <1 | 249 |
| Mar | 70 | 58 | 4% | 0 | 447 |
| Apr | 76 | 63 | 0% | 0 | 581 |
| May | 83 | 72 | 0% | 0 | 855 |
| Jun | 88 | 77 | 0% | 0 | 978 |
| Jul | 90 | 80 | 0% | 0 | 1082 |
| Aug | 91 | 79 | 0% | 0 | 1080 |
| Sep | 89 | 76 | 0% | 0 | 961 |
| Oct | 81 | 68 | 0% | 0 | 752 |
| Nov | 72 | 58 | 0% | 0 | 450 |
| Dec | 65 | 50 | 34% | 1 | 256 |
Monthly normals 1991–2020 at Galveston, TX (7 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, Galveston Scholes Field, TX, 15 miles southwest of Crystal Beach, has a 32°F night in 48% of winters against 73% here, and a coolest-month low 1°F warmer (49°F).
When it snows in Crystal Beach, Texas
Measurable snow is rare here: only 1 of 16 winters from 1991 to 2020 recorded 0.1 inch or more at Galveston Scholes Field, TX, 15.3 miles away, so there is no typical first-snow date to plan around.
Where these figures come from
ZIP 77650 is 12 miles from Galveston, TX, which stands at 7 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 77550 (Galveston). The 2023 USDA Plant Hardiness Zone Map lists ZIP 77650 in zone 10a, the band where the coldest night of the year averaged 30 to 35°F (-1.1 to 1.7°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.