Last spring frost
Mar 15
Frost Dates for Whitney, TX
First fall frost
Nov 14
Growing season
243 days
Hardiness zone
8b
In an average year around Whitney, TX, the last spring frost (32°F) is about Mar 15 and the first fall frost is about Nov 14, giving roughly a 243-day growing season. To be safe most years, wait until Feb 25 before setting out tender plants.
Last spring frost
Dates the last frost of spring typically ends. Plant tender crops after the risk has passed for your comfort level.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Apr 20 | Apr 1 | Mar 8 |
| Freeze (32°F) | Apr 7 | Mar 15 | Feb 25 |
| Hard (28°F) | Mar 28 | Mar 2 | Feb 6 |
| Severe (24°F) | Mar 13 | Feb 10 | Jan 11 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 20 | Apr 13 | Apr 8 | Apr 4 | Apr 1 | Mar 28 | Mar 22 | Mar 17 | Mar 8 |
| 32°F | Apr 7 | Mar 31 | Mar 25 | Mar 19 | Mar 15 | Mar 10 | Mar 6 | Mar 2 | Feb 25 |
| 28°F | Mar 28 | Mar 17 | Mar 11 | Mar 6 | Mar 2 | Feb 26 | Feb 21 | Feb 16 | Feb 6 |
| 24°F | Mar 13 | Mar 3 | Feb 25 | Feb 17 | Feb 10 | Feb 4 | Jan 30 | Jan 23 | Jan 11 |
| 20°F | Mar 1 | Feb 14 | Feb 5 | Jan 31 | Jan 25 | Jan 17 | Jan 10 | Dec 31 | Dec 22 |
| 16°F | Feb 9 | Feb 1 | Jan 28 | Jan 20 | Jan 14 | Jan 9 | Jan 4 | Dec 31 | Dec 23 |
First fall frost
Dates the first frost of fall typically arrives. Count back by a crop's days-to-maturity to know your planting cutoff.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Oct 23 | Nov 4 | Nov 21 |
| Freeze (32°F) | Oct 31 | Nov 14 | Dec 3 |
| Hard (28°F) | Nov 6 | Nov 28 | Dec 20 |
| Severe (24°F) | Nov 17 | Dec 11 | Jan 12 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 23 | Oct 28 | Oct 31 | Nov 2 | Nov 4 | Nov 7 | Nov 11 | Nov 16 | Nov 21 |
| 32°F | Oct 31 | Nov 3 | Nov 7 | Nov 11 | Nov 14 | Nov 18 | Nov 22 | Nov 28 | Dec 3 |
| 28°F | Nov 6 | Nov 13 | Nov 18 | Nov 23 | Nov 28 | Dec 2 | Dec 5 | Dec 10 | Dec 20 |
| 24°F | Nov 17 | Nov 25 | Dec 1 | Dec 6 | Dec 11 | Dec 19 | Dec 26 | Jan 1 | Jan 12 |
| 20°F | Dec 2 | Dec 11 | Dec 19 | Dec 25 | Dec 31 | Jan 3 | Jan 8 | Jan 16 | Feb 1 |
| 16°F | Dec 19 | Dec 25 | Dec 31 | Jan 3 | Jan 6 | Jan 10 | Jan 17 | Jan 24 | Feb 2 |
Growing season is measured at 32°F with about 50% probability. Hardiness zone from the 2023 USDA map; frost normals from NOAA 1991-2020.
Where this data comes from
@endif These dates are computed from the nearest official weather station with long-term records: Whitney Dam, Tx, about 7.3 miles away@if(!empty($station['elevation_ft'])), at 574 ft elevation. The further the station and the greater the elevation difference from your yard, the more your local frost timing can vary.
How we calculate these dates
Frost and freeze dates come from the NOAA 1991–2020 U.S. Climate Normals, the National Oceanic and Atmospheric Administration's 30-year averages for each weather station. A date shown at the 50% level is the median: in half of years the frost falls on or before it. The 10% and 90% columns show the early and late ends of the range, so you can plant on the odds you're comfortable with. These are long-term averages, not a forecast for this year - always check your local outlook before planting.
Source: NOAA National Centers for Environmental Information, 1991–2020 Climate Normals (public domain). Harman is not affiliated with or endorsed by NOAA.
Frequently asked questions
When is the last frost in Whitney, TX?
On average, the last spring frost (32°F) around Whitney, TX is about Mar 15. In cooler years it can run later, so for a safer bet many gardeners wait until Feb 25.
When is the first frost in the fall?
The first fall frost around Whitney, TX typically arrives about Nov 14. Count back by a crop's days to maturity to find the latest date you can plant it.
When can I plant tomatoes and other tender crops?
Tender crops like tomatoes, peppers and basil are damaged by frost, so wait until the last spring frost has passed - around Mar 15 on average, or Feb 25 to be safe most years.
How long is the growing season here?
The frost-free growing season (between the last spring and first fall 32°F frost) is about 243 days in a typical year.
Are these dates a forecast for this year?
No. They are 30-year averages from the NOAA 1991–2020 Climate Normals, not a prediction for the current year. Use them for planning and always check your local weather forecast before planting or protecting crops.
Local weather for 76692 Planting calendar → Texas frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026