Frost dates for ZIP 76671 (Morgan, 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, Whitney Dam, TX (13 miles away).
- Average last spring frostMar 1550% chance of a 32°F freeze after this date
- Average first fall frostNov 1450% chance of a 32°F freeze by this date
- Growing season (frost-free)243 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 25 |
| 50% (the "average" last frost) | Mar 15 |
| 10% (safe-side: only 1 year in 10 freezes later) | Apr 7 |
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 31 |
| 50% (the "average" first frost) | Nov 14 |
| 90% (late: most years have frozen by now) | Dec 3 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 1 | Nov 4 |
| 32°F (freeze) | Mar 15 | Nov 14 |
| 28°F (hard freeze) | Mar 2 | Nov 28 |
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 Morgan
Soil temperature now
2-inch depth
67°F 55°F or warmer
24-hour average · latest 73°F, as of Oct 17, 7:00 PM CDT
Measured at TexMesonet (TWDB) station Blum ISD Farm, 12 mi away. Daily averages: Thu 82°, Fri 71°.
4-inch depth
69°F 55°F or warmer
24-hour average · latest 75°F, as of Oct 17, 7:00 PM CDT
Measured at TexMesonet (TWDB) station Blum ISD Farm, 12 mi away. Daily averages: Thu 82°, Fri 74°.
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 | 69° | 47° | Sunny |
| Monday | 76° | 52° | Sunny |
| Tuesday | 80° | 55° | Sunny |
| Wednesday | 84° | 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 76671
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: Whitney Dam, TX (NOAA GHCN-Daily ID USC00419715), elevation 574 ft, 12.7 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Rainbow, TX | 21 mi | Mar 28 | Nov 7 |
| Cleburne, TX | 24 mi | Mar 17 | Nov 12 |
| Hillsboro, TX | 25 mi | Mar 21 | Nov 10 |
The average last-frost dates of these stations span 13 days, a rough guide to local variation. See data sources & methods.
Questions
When is the last frost in 76671?
The average (50% chance) last spring freeze of 32°F for ZIP 76671 is March 15. For a safer planting date, use April 7, when only 1 year in 10 still sees a later freeze.
When is the first frost in 76671?
The average first fall freeze is November 14. In 1 year in 10 it comes by October 31.
What hardiness zone is 76671?
ZIP 76671 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 76689 76690 All Bosque County ZIPs