Last spring frost
Mar 2
Frost Dates for Yorktown, TX
First fall frost
Nov 27
Growing season
270 days
Hardiness zone
9a
In an average year around Yorktown, TX, the last spring frost (32°F) is about Mar 2 and the first fall frost is about Nov 27, giving roughly a 270-day growing season. To be safe most years, wait until Feb 2 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 8 | Mar 15 | Feb 23 |
| Freeze (32°F) | Mar 24 | Mar 2 | Feb 2 |
| Hard (28°F) | Mar 12 | Feb 15 | Jan 6 |
| Severe (24°F) | Mar 3 | Jan 25 | Dec 16 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 8 | Apr 2 | Mar 26 | Mar 20 | Mar 15 | Mar 10 | Mar 6 | Mar 1 | Feb 23 |
| 32°F | Mar 24 | Mar 17 | Mar 11 | Mar 6 | Mar 2 | Feb 26 | Feb 22 | Feb 14 | Feb 2 |
| 28°F | Mar 12 | Mar 5 | Feb 27 | Feb 22 | Feb 15 | Feb 5 | Jan 31 | Jan 21 | Jan 6 |
| 24°F | Mar 3 | Feb 21 | Feb 9 | Feb 1 | Jan 25 | Jan 16 | Jan 7 | Dec 30 | Dec 16 |
| 20°F | Feb 18 | Feb 2 | Jan 22 | Jan 16 | Jan 9 | Jan 5 | Jan 1 | Dec 25 | Dec 15 |
| 16°F | Feb 3 | Jan 26 | Jan 17 | Jan 12 | Jan 6 | Jan 4 | Jan 2 | Dec 29 | Dec 21 |
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 29 | Nov 12 | Dec 5 |
| Freeze (32°F) | Nov 4 | Nov 27 | Dec 21 |
| Hard (28°F) | Nov 12 | Dec 9 | Jan 9 |
| Severe (24°F) | Nov 26 | Dec 27 | Feb 2 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 29 | Nov 2 | Nov 6 | Nov 9 | Nov 12 | Nov 16 | Nov 21 | Nov 29 | Dec 5 |
| 32°F | Nov 4 | Nov 11 | Nov 15 | Nov 20 | Nov 27 | Dec 1 | Dec 5 | Dec 11 | Dec 21 |
| 28°F | Nov 12 | Nov 22 | Nov 30 | Dec 4 | Dec 9 | Dec 16 | Dec 23 | Dec 30 | Jan 9 |
| 24°F | Nov 26 | Dec 5 | Dec 12 | Dec 20 | Dec 27 | Jan 1 | Jan 6 | Jan 16 | Feb 2 |
| 20°F | Dec 8 | Dec 20 | Dec 26 | Dec 30 | Jan 2 | Jan 5 | Jan 11 | Jan 19 | Feb 6 |
| 16°F | Dec 19 | Dec 27 | Jan 1 | Jan 2 | Jan 4 | Jan 7 | Jan 14 | Jan 19 | 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: Cuero, Tx, about 13.1 miles away@if(!empty($station['elevation_ft'])), at 214 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 Yorktown, TX?
On average, the last spring frost (32°F) around Yorktown, TX is about Mar 2. In cooler years it can run later, so for a safer bet many gardeners wait until Feb 2.
When is the first frost in the fall?
The first fall frost around Yorktown, TX typically arrives about Nov 27. 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 2 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 270 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 78164 Planting calendar → Texas frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026