Frost dates for ZIP 76690 (Walnut Springs, 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, Rainbow, TX (12 miles away).
- Average last spring frostMar 2850% chance of a 32°F freeze after this date
- Average first fall frostNov 750% chance of a 32°F freeze by this date
- Growing season (frost-free)225 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) | Mar 5 |
| 50% (the "average" last frost) | Mar 28 |
| 10% (safe-side: only 1 year in 10 freezes later) | Apr 19 |
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 22 |
| 50% (the "average" first frost) | Nov 7 |
| 90% (late: most years have frozen by now) | Nov 25 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 9 | Oct 28 |
| 32°F (freeze) | Mar 28 | Nov 7 |
| 28°F (hard freeze) | Mar 11 | Nov 18 |
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 Walnut Springs
Soil temperature now
2-inch depth
67°F 55°F or warmer
24-hour average · latest 70°F, as of Oct 17, 7:00 PM CDT
Measured at TexMesonet (TWDB) station Wheeler Branch Station, 11 mi away. Daily averages: Thu 82°, Fri 72°.
4-inch depth
72°F 55°F or warmer
24-hour average · latest 73°F, as of Oct 17, 7:00 PM CDT
Measured at TexMesonet (TWDB) station Wheeler Branch Station, 11 mi away. Daily averages: Thu 82°, Fri 76°.
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 | 42° | Mostly Clear | |
| Sunday | 68° | 45° | Sunny |
| Monday | 75° | 51° | Sunny |
| Tuesday | 79° | 54° | Sunny |
| Wednesday | 83° | 58° | Sunny |
| Thursday | 85° | 59° | Sunny |
| Friday | 85° | 62° | Mostly Sunny |
National Weather Service forecast, issued Oct 17, 8:28 PM CDT. Frost can form above 32°F on clear, calm nights. Full NWS forecast.
Free frost alerts for 76690
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: Rainbow, TX (NOAA GHCN-Daily ID USC00417388), elevation 648 ft, 12.1 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Hico, TX | 16 mi | Mar 24 | Nov 7 |
| Cleburne, TX | 27 mi | Mar 17 | Nov 12 |
| Stephenville, TX | 27 mi | Mar 29 | Nov 8 |
The average last-frost dates of these stations span 12 days, a rough guide to local variation. See data sources & methods.
Questions
When is the last frost in 76690?
The average (50% chance) last spring freeze of 32°F for ZIP 76690 is March 28. For a safer planting date, use April 19, when only 1 year in 10 still sees a later freeze.
When is the first frost in 76690?
The average first fall freeze is November 7. In 1 year in 10 it comes by October 22.
What hardiness zone is 76690?
ZIP 76690 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 Bosque County
76634 76637 76649 76652 76665 76671 76689 All Bosque County ZIPs