Frost dates · USDA zone 9a
Frost dates for Huntsville, TX
Huntsville, TX sees its last 32 °F night of spring around March 1 and its first of fall around November 28 — a 272-day freeze-free season in a typical year.
Pick a sauce; the Plan Builder runs this station's dates and hands back the calendar, plant count and gear list.
Freeze odds, by date
| Odds | Last spring freeze after | First fall freeze before |
|---|---|---|
| 9 years in 10 | Feb 2 | Dec 21 |
| Median — 1 year in 2 | Mar 1 | Nov 28 |
| 1 year in 10 | Mar 22 | Nov 6 |
The top row is the risky edge: in 9 years of 10 a spring freeze still comes after it, so tender transplants set out then need cover. The bottom row is the cautious date — only 1 year in 10 freezes after it — and the one to plan uncovered tender transplants against. Freeze-free season: 272 days median, at least 242 in 9 years of 10, at least 308 days in 1 year of 10. NOAA ranks season length year by year, so it is not the gap between two rows above. A hard freeze (28 °F) has a median last date of Feb 12 and first of Dec 13.
Huntsville planting calendar, 2027
Every row runs from the median last frost (Mar 1) and median first frost (Nov 28) above, using each cultivar's days to maturity. Same engine as the Plan Builder.
| Crop | Start indoors | Transplant / plant | First harvest | Days |
|---|---|---|---|---|
| Hardneck GarlicSiberian (porcelain hardneck) | — | Oct 15prior fall | Jun 12 | 240 from sow |
| Spanish OnionYellow Sweet Spanish (long-day) | Dec 7 | Feb 1 | May 22 | 110 from transplant |
| Mustard greensGarnet Giant (Brassica juncea) | Direct sow | Mar 1 | Mar 31 | 30 from sow |
| CilantroSlow Bolt (Coriandrum sativum) | Feb 15 | Feb 15 | Apr 1 | 45 from sow |
| Genovese BasilGenovese | Feb 1 | Mar 15 | May 14 | 60 from transplant |
| CayenneLong Slim Cayenne (Capsicum annuum) | Jan 4 | Mar 8 | May 22 | 75 from transplant |
| HabaneroOrange Habanero (Capsicum chinense) | Dec 21 | Mar 15 | Jun 18 | 95 from transplant |
| JalapeñoEarly Jalapeño (Capsicum annuum) | Jan 4 | Mar 8 | May 22 | 75 from transplant |
| Marconi Red PepperMarconi Red (Capsicum annuum) | Jan 4 | Mar 8 | May 27 | 80 from transplant |
| SerranoSerrano Tampiqueño (Capsicum annuum) | Jan 4 | Mar 8 | May 27 | 80 from transplant |
| Nantes CarrotScarlet Nantes | Feb 15 | Feb 15 | Apr 26 | 70 from sow |
| TomatilloToma Verde | Jan 18 | Mar 8 | May 17 | 70 from transplant |
| Roma TomatoRoma VF (determinate paste) | Jan 18 | Mar 8 | May 22 | 75 from transplant |
| San Marzano TomatoSan Marzano (indeterminate paste) | Jan 18 | Mar 8 | May 27 | 80 from transplant |
Tight means first harvest lands within two weeks of the median first fall frost: start that crop indoors on time or cover it in fall.
What sauce can Huntsville grow?
Each sauce, scheduled for a Huntsville container garden: when the first seeds go in and when enough fruit has ripened for one batch.
Huntsville frost questions
When is the last frost in Huntsville, TX?
The median last 32 °F freeze at HUNTSVILLE, TX is March 1: half of years see a later one. One year in ten, a freeze still comes after March 22; nine years in ten, it comes after February 2. Source: NOAA NCEI 1991–2020 U.S. Climate Normals.
When is the first frost in Huntsville, TX?
The median first 32 °F freeze of fall is November 28. One year in ten it arrives before November 6; nine years in ten, before December 21.
How long is the growing season in Huntsville, TX?
272 days between the last spring and first fall 32 °F freeze in a median year. Nine years in ten the season runs at least 242 days; one year in ten, at least 308 days.
What growing zone is Huntsville, TX?
USDA hardiness zone 9a, per the 2023 USDA Plant Hardiness Zone Map for ZIP 77341. A zone describes the coldest winter night, not when frost ends, so it is the wrong number for a planting calendar — the frost dates on this page are the right one.
When should I plant tomatoes in Huntsville, TX?
Start Roma VF (determinate paste) seeds indoors around Jan 18 and transplant around Mar 8, 1 week after the median last frost. To cut the freeze risk to one year in ten, wait for Mar 22. First ripe fruit lands around May 22.
When should I plant peppers in Huntsville, TX?
Sow jalapeño indoors on a heat mat around Jan 4; transplant no earlier than Mar 8, and wait past it until nights hold above 50 °F — that can run weeks later. First green pods around May 22.
Nearby in Texas
- Conroelast frost Feb 24
- College Stationlast frost Feb 27
- Bryanlast frost Feb 27
- Houstonlast frost Feb 2
- Fulshearlast frost Feb 28
- Baytownlast frost Feb 20
All Texas frost dates → · How frost-date math drives a sowing calendar →