Last spring frost
Mar 2
Frost Dates for Briarcliff, TX
First fall frost
Nov 29
Growing season
274 days
Hardiness zone
8b
In an average year around Briarcliff, TX, the last spring frost (32°F) is about Mar 2 and the first fall frost is about Nov 29, giving roughly a 274-day growing season. To be safe most years, wait until Feb 6 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 5 | Mar 14 | Feb 25 |
| Freeze (32°F) | Mar 20 | Mar 2 | Feb 6 |
| Hard (28°F) | Mar 11 | Feb 16 | Jan 12 |
| Severe (24°F) | Mar 2 | Jan 29 | Dec 20 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 5 | Mar 29 | Mar 23 | Mar 18 | Mar 14 | Mar 11 | Mar 7 | Mar 2 | Feb 25 |
| 32°F | Mar 20 | Mar 14 | Mar 9 | Mar 5 | Mar 2 | Feb 28 | Feb 23 | Feb 16 | Feb 6 |
| 28°F | Mar 11 | Mar 4 | Feb 28 | Feb 22 | Feb 16 | Feb 9 | Feb 1 | Jan 25 | Jan 12 |
| 24°F | Mar 2 | Feb 21 | Feb 13 | Feb 5 | Jan 29 | Jan 21 | Jan 12 | Jan 1 | Dec 20 |
| 20°F | Feb 22 | Feb 11 | Feb 2 | Jan 22 | Jan 15 | Jan 7 | Jan 3 | Dec 31 | Dec 22 |
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) | Nov 2 | Nov 18 | Dec 5 |
| Freeze (32°F) | Nov 10 | Nov 29 | Dec 19 |
| Hard (28°F) | Nov 20 | Dec 13 | Jan 16 |
| Severe (24°F) | Dec 4 | Dec 30 | Feb 10 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Nov 2 | Nov 7 | Nov 10 | Nov 15 | Nov 18 | Nov 22 | Nov 26 | Nov 30 | Dec 5 |
| 32°F | Nov 10 | Nov 16 | Nov 21 | Nov 25 | Nov 29 | Dec 2 | Dec 6 | Dec 11 | Dec 19 |
| 28°F | Nov 20 | Nov 29 | Dec 4 | Dec 9 | Dec 13 | Dec 19 | Dec 25 | Jan 1 | Jan 16 |
| 24°F | Dec 4 | Dec 12 | Dec 18 | Dec 23 | Dec 30 | Jan 4 | Jan 13 | Jan 24 | Feb 10 |
| 20°F | Dec 15 | Dec 23 | Dec 30 | Jan 3 | Jan 6 | Jan 15 | Jan 24 | Feb 3 | Feb 14 |
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: Austin 33 Nw, Tx, about 12.6 miles away@if(!empty($station['elevation_ft'])), at 1,361 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 Briarcliff, TX?
On average, the last spring frost (32°F) around Briarcliff, TX is about Mar 2. In cooler years it can run later, so for a safer bet many gardeners wait until Feb 6.
When is the first frost in the fall?
The first fall frost around Briarcliff, TX typically arrives about Nov 29. 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 2 on average, or Feb 6 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 274 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 78669 Planting calendar → Texas frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026