Last frost date in Huntsville, AL
In Huntsville, the last spring frost comes around March 24 in an average year. Wait until April 8 if you want 90% odds of no more frost. The first fall frost usually arrives about November 8, which leaves 229 frost-free days. An early freeze before October 27 happens one year in ten.
- Safe after (10% risk)
- Apr 8
- Average first frost
- Nov 8
- Frost-free season
- 229 days
- Hard freeze (28°F) ends
- Mar 10
No frost in the next 7 nights
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2246°
- FriOct 2348°
- SatOct 2446°
- SunOct 2546°
- MonOct 2646°
- TueOct 2748°
- WedOct 2847°
Planting calendar for Huntsville
Windows count forward or back from the average frost dates above. Click a crop for dates across Alabama.
TomatoesMar 31–Apr 14
PumpkinsApr 7–Apr 21
SunflowersMar 24–Apr 14
CucumbersApr 7–Apr 14
CornMar 31–Apr 14
Sweet potatoesApr 14–Apr 28
WatermelonApr 7–Apr 21
Green beansMar 31–Apr 21
ZucchiniMar 31–Apr 14
OkraApr 14–Apr 28
PeppersApr 7–Apr 21
BasilMar 31–Apr 14
Butternut squashMar 31–Apr 14
CantaloupeApr 7–Apr 21
EggplantApr 7–Apr 21
PotatoesFeb 24–Mar 10
OnionsFeb 10–Mar 3
CarrotsMar 3–Apr 7
LettuceMar 10–Mar 31
BroccoliFeb 24–Mar 10
BeetsFeb 24–Apr 7
PeasFeb 10–Feb 24
CabbageFeb 24–Mar 10
RadishesFeb 17–Mar 31
Brussels sproutsMar 10–Mar 24
SpinachFeb 10–Mar 3
CilantroMar 10–Mar 31
KaleFeb 24–Mar 10
Collard greensFeb 24–Mar 10
TurnipsFeb 24–Mar 10
DillMar 24–Apr 7
CeleryMar 31–Apr 7
CauliflowerMar 10–Mar 24
LeeksMar 10–Mar 24
Swiss chardMar 10–Apr 7
ParsleyMar 10–Mar 31
Tulip bulbsOct 25–Nov 29
GarlicOct 18–Nov 22
Daffodil bulbsOct 11–Nov 22
StrawberriesFeb 24–Mar 10
AsparagusFeb 24–Mar 10Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Mar 4 | Mar 24 | Apr 8 | Oct 27 | Nov 8 | Nov 25 |
| Hard freeze, 28°F | Feb 19 | Mar 10 | Mar 29 | Nov 3 | Nov 20 | Dec 8 |
Read the spring 10% column as the date after which only one year in ten still gets frost. That is the safer date for tomatoes, peppers and basil.
Where these numbers come from
NOAA station Huntsville International Airport (USW00003856) sits 7.2 miles from the center of Huntsville at 624 feet. Its averages cover 1991 to 2020. Low spots, valleys and open fields can keep getting frost a week or two after the station stops; city centers and lakeshores usually get less of it.
Questions
When is the last frost in Huntsville, AL?
The average last frost date in Huntsville is March 24, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 8.
When is the first frost in Huntsville?
The first frost in fall usually comes around November 8. One year in ten it arrives before October 27.
How long is the growing season in Huntsville?
About 229 days between the average last and first frost.
When should I plant tomatoes in Huntsville?
Plant tomato seedlings outside from March 31 to April 14. Start seeds indoors six to eight weeks earlier.
Nearby in Alabama
- MadisonMar 24
- AthensMar 20
- DecaturMar 26
- CullmanMar 31
- AlbertvilleMar 17
- FlorenceMar 27
- GadsdenMar 19
- TrussvilleApr 4
- BirminghamMar 21
- Mountain BrookMar 21
- Vestavia HillsMar 21
- HomewoodMar 21