Frost dates for ZIP 77535 (Dayton, 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, Liberty, TX (8 miles away).
- Average last spring frostFeb 2150% chance of a 32°F freeze after this date
- Average first fall frostDec 150% chance of a 32°F freeze by this date
- Growing season (frost-free)286 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 22 |
| 50% (the "average" last frost) | Feb 21 |
| 10% (safe-side: only 1 year in 10 freezes later) | Mar 17 |
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 9 |
| 50% (the "average" first frost) | Dec 1 |
| 90% (late: most years have frozen by now) | Jan 2 (next year) |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Mar 8 | Nov 18 |
| 32°F (freeze) | Feb 21 | Dec 1 |
| 28°F (hard freeze) | Jan 30 | Dec 22 |
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 Dayton
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 (38 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 (38 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 | 48° | Mostly Clear | |
| Sunday | 72° | 50° | Sunny |
| Monday | 76° | 53° | Sunny |
| Tuesday | 79° | 55° | Sunny |
| Wednesday | 84° | 55° | Sunny |
| Thursday | 86° | 56° | Sunny |
| Friday | 86° | 58° | 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 77535
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: Liberty, TX (NOAA GHCN-Daily ID USC00415196), elevation 35 ft, 7.6 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Baytown, TX | 11 mi | Feb 20 | Dec 4 |
| Cleveland, TX | 23 mi | Mar 7 | Nov 20 |
| Anahuac, TX | 25 mi | Feb 12 | Dec 6 |
The average last-frost dates of these stations span 26 days, a rough guide to local variation. See data sources & methods.
Questions
When is the last frost in 77535?
The average (50% chance) last spring freeze of 32°F for ZIP 77535 is February 21. For a safer planting date, use March 17, when only 1 year in 10 still sees a later freeze.
When is the first frost in 77535?
The average first fall freeze is December 1. In 1 year in 10 it comes by November 9.
What hardiness zone is 77535?
ZIP 77535 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 Liberty County
77327 77368 77369 77533 77538 77561 77564 77575 77582 All Liberty County ZIPs