Last spring frost
Mar 8
Frost Dates for Irving, TX
First fall frost
Nov 24
Growing season
262 days
Hardiness zone
8b
In an average year around Irving, TX, the last spring frost (32°F) is about Mar 8 and the first fall frost is about Nov 24, giving roughly a 262-day growing season. To be safe most years, wait until Feb 17 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 9 | Mar 21 | Mar 2 |
| Freeze (32°F) | Mar 26 | Mar 8 | Feb 17 |
| Hard (28°F) | Mar 14 | Feb 25 | Jan 30 |
| Severe (24°F) | Mar 7 | Feb 7 | Jan 7 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 9 | Apr 2 | Mar 30 | Mar 25 | Mar 21 | Mar 17 | Mar 13 | Mar 8 | Mar 2 |
| 32°F | Mar 26 | Mar 19 | Mar 15 | Mar 12 | Mar 8 | Mar 4 | Feb 28 | Feb 24 | Feb 17 |
| 28°F | Mar 14 | Mar 10 | Mar 5 | Mar 1 | Feb 25 | Feb 19 | Feb 13 | Feb 7 | Jan 30 |
| 24°F | Mar 7 | Feb 28 | Feb 21 | Feb 13 | Feb 7 | Jan 31 | Jan 28 | Jan 19 | Jan 7 |
| 20°F | Feb 27 | Feb 12 | Feb 4 | Jan 30 | Jan 24 | Jan 17 | Jan 11 | Jan 2 | Dec 21 |
| 16°F | Feb 13 | Feb 5 | Jan 30 | Jan 21 | Jan 14 | Jan 10 | Jan 5 | Jan 1 | Dec 20 |
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 30 | Nov 13 | Nov 30 |
| Freeze (32°F) | Nov 6 | Nov 24 | Dec 12 |
| Hard (28°F) | Nov 15 | Dec 7 | Dec 28 |
| Severe (24°F) | Nov 28 | Dec 24 | Jan 22 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 30 | Nov 3 | Nov 6 | Nov 9 | Nov 13 | Nov 16 | Nov 20 | Nov 24 | Nov 30 |
| 32°F | Nov 6 | Nov 11 | Nov 15 | Nov 19 | Nov 24 | Nov 28 | Dec 2 | Dec 5 | Dec 12 |
| 28°F | Nov 15 | Nov 23 | Nov 28 | Dec 3 | Dec 7 | Dec 11 | Dec 16 | Dec 21 | Dec 28 |
| 24°F | Nov 28 | Dec 5 | Dec 11 | Dec 18 | Dec 24 | Dec 30 | Jan 4 | Jan 12 | Jan 22 |
| 20°F | Dec 10 | Dec 18 | Dec 25 | Dec 31 | Jan 4 | Jan 10 | Jan 15 | Jan 24 | Feb 6 |
| 16°F | Dec 18 | Dec 28 | Jan 1 | Jan 4 | Jan 9 | Jan 13 | Jan 20 | Feb 1 | Feb 12 |
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: Dallas Ft Worth Ap, Tx, about 5 miles away@if(!empty($station['elevation_ft'])), at 560 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 Irving, TX?
On average, the last spring frost (32°F) around Irving, TX is about Mar 8. In cooler years it can run later, so for a safer bet many gardeners wait until Feb 17.
When is the first frost in the fall?
The first fall frost around Irving, TX typically arrives about Nov 24. 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 8 on average, or Feb 17 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 262 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 75062 Planting calendar → Texas frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026