Frost dates for ZIP 76637 (Cranfills Gap, 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, Hico, TX (22 miles away).
- Average last spring frostMar 2450% 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)229 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 4 |
| 50% (the "average" last frost) | Mar 24 |
| 10% (safe-side: only 1 year in 10 freezes later) | Apr 11 |
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 25 |
| 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 5 | Oct 30 |
| 32°F (freeze) | Mar 24 | 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 Cranfills Gap
Soil temperature now
2-inch depth
67°F 55°F or warmer
24-hour average · latest 72°F, as of Oct 17, 7:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Blum ISD Farm (32 mi), Wheeler Branch Station (34 mi), Aquilla Water Supply District (35 mi).
4-inch depth
70°F 55°F or warmer
24-hour average · latest 73°F, as of Oct 17, 7:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Blum ISD Farm (32 mi), Wheeler Branch Station (34 mi), Aquilla Water Supply District (35 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 | 41° | Mostly Clear | |
| Sunday | 68° | 46° | Sunny |
| Monday | 75° | 52° | Sunny |
| Tuesday | 79° | 55° | Sunny |
| Wednesday | 83° | 57° | Sunny |
| Thursday | 86° | 60° | Sunny |
| Friday | 86° | 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 76637
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: Hico, TX (NOAA GHCN-Daily ID USC00414137), elevation 1,043 ft, 21.7 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Whitney Dam, TX | 23 mi | Mar 15 | Nov 14 |
| Gatesville, TX | 25 mi | Mar 19 | Nov 9 |
| Mcgregor, TX | 31 mi | Mar 15 | Nov 18 |
The average last-frost dates of these stations span 9 days, a rough guide to local variation. See data sources & methods.
Questions
When is the last frost in 76637?
The average (50% chance) last spring freeze of 32°F for ZIP 76637 is March 24. For a safer planting date, use April 11, when only 1 year in 10 still sees a later freeze.
When is the first frost in 76637?
The average first fall freeze is November 7. In 1 year in 10 it comes by October 25.
What hardiness zone is 76637?
ZIP 76637 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 76649 76652 76665 76671 76689 76690 All Bosque County ZIPs