Frost dates for ZIP 77617 (Bolivar Peninsula, TX)
Average last spring and first fall frost dates with 10%, 50% and 90% odds, from NOAA's 1991–2020 climate normals for the nearest weather station, Anahuac, TX (20 miles away).
- Average last spring frostFeb 1250% chance of a 32°F freeze after this date
- Average first fall frostDec 650% chance of a 32°F freeze by this date
- Growing season (frost-free)302 daysmedian, 32°F threshold
- USDA hardiness zone9b25 to 30°F avg. coldest night
Last spring frost odds
| Chance of a 32°F freeze after this date | Date |
|---|---|
| 90% (early: most years still freeze after this) | Jan 10 |
| 50% (the "average" last frost) | Feb 12 |
| 10% (safe-side: only 1 year in 10 freezes later) | Mar 10 |
Most gardeners plant frost-tender crops (tomatoes, peppers, basil) after the 50% date, and closer to the 10% date for less risk.
First fall frost odds
| Chance the first 32°F freeze has happened by this date | Date |
|---|---|
| 10% (early: 1 year in 10 freezes this soon) | Nov 16 |
| 50% (the "average" first frost) | Dec 6 |
| 90% (late: most years have frozen by now) | Jan 7 (next year) |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Feb 28 | Nov 24 |
| 32°F (freeze) | Feb 12 | Dec 6 |
| 28°F (hard freeze) | Jan 25 | Dec 31 |
n/a means NOAA did not publish a date at that threshold for this station (usually because it rarely gets that cold).
This week in Bolivar Peninsula
Soil temperature now
2-inch depth
73°F 55°F or warmer
24-hour average · latest 72°F, as of Oct 17, 8:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Beaumont (39 mi).
4-inch depth
74°F 55°F or warmer
24-hour average · latest 74°F, as of Oct 17, 8:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Beaumont (39 mi).
Fall: Texas A&M AgriLife times fall pre-emergent (for winter weeds such as annual bluegrass) to soil cooling to about 70°F for several days. The 50–55°F band is the spring trigger. Always read and follow the product label.
7-day forecast and frost risk
No frost in the 7-day forecast.
| Period | High | Low | Forecast |
|---|---|---|---|
| Tonight | 56° | Mostly Clear | |
| Sunday | 72° | 61° | Sunny |
| Monday | 75° | 64° | Sunny |
| Tuesday | 77° | 65° | Mostly Sunny |
| Wednesday | 79° | 64° | Sunny |
| Thursday | 80° | 66° | Sunny |
| Friday | 81° | 68° | Sunny |
National Weather Service forecast, issued Oct 17, 8:29 PM CDT. Frost can form above 32°F on clear, calm nights. Full NWS forecast.
Free frost alerts for 77617
An email when the National Weather Service forecasts a freeze for this ZIP, plus the spring soil-temperature heads-up. At most a few a month.
Alerts open soon. This form is a preview and doesn't send anything yet.
Where these numbers come from
Station: Anahuac, TX (NOAA GHCN-Daily ID USC00410235), elevation 24 ft, 20.3 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Galveston, TX | 25 mi | Jan 25 | Jan 1 (next year) |
| Galveston Scholes Fld, TX | 29 mi | Jan 18 | Jan 7 (next year) |
| Houston Nwso, TX | 37 mi | Jan 31 | Dec 14 |
The average last-frost dates of these stations span 25 days, a rough guide to local variation. See data sources & methods.
Questions
When is the last frost in 77617?
The average (50% chance) last spring freeze of 32°F for ZIP 77617 is February 12. For a safer planting date, use March 10, when only 1 year in 10 still sees a later freeze.
When is the first frost in 77617?
The average first fall freeze is December 6. In 1 year in 10 it comes by November 16.
What hardiness zone is 77617?
ZIP 77617 is in USDA zone 9b (25 to 30°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
Other ZIP codes in Galveston County
77510 77517 77518 77539 77546 77550 77551 77554 77555 77563 77565 77568 77573 77590 77591 77623 77650 All Galveston County ZIPs