Last spring frost
Feb 9
Frost Dates for Pecan Grove, TX
First fall frost
Dec 13
Growing season
305 days
Hardiness zone
9b
In an average year around Pecan Grove, TX, the last spring frost (32°F) is about Feb 9 and the first fall frost is about Dec 13, giving roughly a 305-day growing season. To be safe most years, wait until Jan 13 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) | Mar 25 | Mar 2 | Feb 2 |
| Freeze (32°F) | Mar 11 | Feb 9 | Jan 13 |
| Hard (28°F) | Feb 28 | Jan 28 | Dec 26 |
| Severe (24°F) | Feb 20 | Jan 20 | Dec 29 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 25 | Mar 15 | Mar 10 | Mar 6 | Mar 2 | Feb 26 | Feb 19 | Feb 12 | Feb 2 |
| 32°F | Mar 11 | Mar 3 | Feb 26 | Feb 17 | Feb 9 | Feb 3 | Jan 30 | Jan 23 | Jan 13 |
| 28°F | Feb 28 | Feb 18 | Feb 8 | Feb 2 | Jan 28 | Jan 21 | Jan 16 | Jan 7 | Dec 26 |
| 24°F | Feb 20 | Feb 7 | Feb 1 | Jan 26 | Jan 20 | Jan 13 | Jan 7 | Jan 2 | Dec 29 |
| 20°F | Feb 4 | Jan 31 | Jan 21 | Jan 15 | Jan 11 | Jan 8 | Jan 5 | Jan 2 | Dec 29 |
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 9 | Nov 29 | Dec 20 |
| Freeze (32°F) | Nov 19 | Dec 13 | Jan 13 |
| Hard (28°F) | Nov 30 | Jan 1 | Feb 2 |
| Severe (24°F) | Dec 19 | Jan 6 | Feb 9 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Nov 9 | Nov 16 | Nov 21 | Nov 26 | Nov 29 | Dec 2 | Dec 6 | Dec 12 | Dec 20 |
| 32°F | Nov 19 | Nov 27 | Dec 2 | Dec 7 | Dec 13 | Dec 20 | Dec 28 | Jan 3 | Jan 13 |
| 28°F | Nov 30 | Dec 9 | Dec 18 | Dec 27 | Jan 1 | Jan 5 | Jan 10 | Jan 19 | Feb 2 |
| 24°F | Dec 19 | Dec 28 | Jan 1 | Jan 2 | Jan 6 | Jan 11 | Jan 19 | Jan 31 | Feb 9 |
| 20°F | Dec 29 | Jan 1 | Jan 2 | Jan 3 | Jan 7 | Jan 12 | Jan 19 | Jan 29 | 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: Sugar Land, Tx, about 8.4 miles away@if(!empty($station['elevation_ft'])), at 84 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 Pecan Grove, TX?
On average, the last spring frost (32°F) around Pecan Grove, TX is about Feb 9. In cooler years it can run later, so for a safer bet many gardeners wait until Jan 13.
When is the first frost in the fall?
The first fall frost around Pecan Grove, TX typically arrives about Dec 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 Feb 9 on average, or Jan 13 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 305 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 77406 Planting calendar → Texas frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026