Last spring frost
Mar 20
Frost Dates for Grand Prairie, TX
First fall frost
Nov 13
Growing season
236 days
Hardiness zone
8b
In an average year around Grand Prairie, TX, the last spring frost (32°F) is about Mar 20 and the first fall frost is about Nov 13, giving roughly a 236-day growing season. To be safe most years, wait until Feb 28 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 21 | Mar 31 | Mar 12 |
| Freeze (32°F) | Apr 8 | Mar 20 | Feb 28 |
| Hard (28°F) | Mar 25 | Mar 8 | Feb 17 |
| Severe (24°F) | Mar 17 | Feb 27 | Jan 31 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 21 | Apr 14 | Apr 7 | Apr 3 | Mar 31 | Mar 28 | Mar 24 | Mar 19 | Mar 12 |
| 32°F | Apr 8 | Apr 1 | Mar 29 | Mar 24 | Mar 20 | Mar 16 | Mar 12 | Mar 7 | Feb 28 |
| 28°F | Mar 25 | Mar 19 | Mar 15 | Mar 11 | Mar 8 | Mar 5 | Mar 1 | Feb 24 | Feb 17 |
| 24°F | Mar 17 | Mar 11 | Mar 6 | Mar 3 | Feb 27 | Feb 21 | Feb 14 | Feb 7 | Jan 31 |
| 20°F | Mar 8 | Mar 1 | Feb 20 | Feb 13 | Feb 6 | Jan 31 | Jan 28 | Jan 21 | Jan 10 |
| 16°F | Feb 28 | Feb 12 | Feb 2 | Jan 30 | Jan 24 | Jan 20 | Jan 14 | Jan 6 | Dec 26 |
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 19 | Nov 3 | Nov 22 |
| Freeze (32°F) | Oct 27 | Nov 13 | Dec 3 |
| Hard (28°F) | Nov 3 | Nov 25 | Dec 13 |
| Severe (24°F) | Nov 13 | Dec 7 | Dec 26 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 19 | Oct 24 | Oct 27 | Oct 31 | Nov 3 | Nov 6 | Nov 10 | Nov 15 | Nov 22 |
| 32°F | Oct 27 | Nov 1 | Nov 5 | Nov 9 | Nov 13 | Nov 17 | Nov 22 | Nov 28 | Dec 3 |
| 28°F | Nov 3 | Nov 9 | Nov 14 | Nov 19 | Nov 25 | Nov 29 | Dec 3 | Dec 8 | Dec 13 |
| 24°F | Nov 13 | Nov 21 | Nov 28 | Dec 3 | Dec 7 | Dec 12 | Dec 16 | Dec 21 | Dec 26 |
| 20°F | Nov 24 | Dec 3 | Dec 12 | Dec 18 | Dec 24 | Dec 28 | Jan 1 | Jan 5 | Jan 15 |
| 16°F | Dec 6 | Dec 16 | Dec 25 | Dec 31 | Jan 3 | Jan 7 | Jan 12 | Jan 19 | Jan 30 |
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: Joe Pool Lake, Tx, about 3.6 miles away@if(!empty($station['elevation_ft'])), at 591 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 Grand Prairie, TX?
On average, the last spring frost (32°F) around Grand Prairie, TX is about Mar 20. In cooler years it can run later, so for a safer bet many gardeners wait until Feb 28.
When is the first frost in the fall?
The first fall frost around Grand Prairie, TX typically arrives about Nov 13. 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 20 on average, or Feb 28 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 236 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 75052 Planting calendar → Texas frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026