Frost dates for ZIP 75937 (Chireno, 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, San Augustine, TX (17 miles away).
- Average last spring frostMar 1850% chance of a 32°F freeze after this date
- Average first fall frostNov 1350% chance of a 32°F freeze by this date
- Growing season (frost-free)240 daysmedian, 32°F threshold
- USDA hardiness zone8b15 to 20°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) | Feb 26 |
| 50% (the "average" last frost) | Mar 18 |
| 10% (safe-side: only 1 year in 10 freezes later) | Apr 8 |
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) | Oct 29 |
| 50% (the "average" first frost) | Nov 13 |
| 90% (late: most years have frozen by now) | Dec 2 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 2 | Nov 2 |
| 32°F (freeze) | Mar 18 | Nov 13 |
| 28°F (hard freeze) | Mar 4 | Nov 25 |
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 Chireno
Soil temperature now
2-inch depth
72°F 55°F or warmer
24-hour average · latest 73°F, as of Oct 17, 8:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Nacogdoches (21 mi), Landram Ranch (32 mi), Green Hill (37 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 Nacogdoches (21 mi), Landram Ranch (32 mi), Green Hill (37 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 | 45° | Mostly Clear | |
| Sunday | 75° | 48° | Sunny |
| Monday | 78° | 50° | Sunny |
| Tuesday | 81° | 51° | Sunny |
| Wednesday | 86° | 52° | Sunny |
| Thursday | 88° | 54° | Sunny |
| Friday | 88° | 55° | 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 75937
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: San Augustine, TX (NOAA GHCN-Daily ID USC00417951), elevation 295 ft, 16.5 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Nacogdoches, TX | 17 mi | Mar 13 | Nov 17 |
| Center, TX | 26 mi | Mar 13 | Nov 15 |
| Lufkin Angelina Co AP, TX | 27 mi | Mar 11 | Nov 15 |
The average last-frost dates of these stations span 7 days, a rough guide to local variation. See data sources & methods.
Questions
When is the last frost in 75937?
The average (50% chance) last spring freeze of 32°F for ZIP 75937 is March 18. For a safer planting date, use April 8, when only 1 year in 10 still sees a later freeze.
When is the first frost in 75937?
The average first fall freeze is November 13. In 1 year in 10 it comes by October 29.
What hardiness zone is 75937?
ZIP 75937 is in USDA zone 8b (15 to 20°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
Other ZIP codes in Nacogdoches County
75760 75788 75943 75944 75946 75961 75962 75964 75965 All Nacogdoches County ZIPs