Last frost date in Mobile, AL
The average last frost in Mobile is February 21. By March 15 the chance of another 32°F night drops to 1 in 10. The first fall frost usually arrives about December 6, which leaves 292 frost-free days. An early freeze before November 15 happens one year in ten.
- Safe after (10% risk)
- Mar 15
- Average first frost
- Dec 6
- Frost-free season
- 292 days
- Hard freeze (28°F) ends
- Feb 2
No frost in the next 7 nights
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2254°
- FriOct 2352°
- SatOct 2453°
- SunOct 2552°
- MonOct 2653°
- TueOct 2753°
- WedOct 2854°
Planting calendar for Mobile
Windows count forward or back from the average frost dates above. Click a crop for dates across Alabama.
TomatoesFeb 28–Mar 14
PumpkinsMar 7–Mar 21
SunflowersFeb 21–Mar 14
CucumbersMar 7–Mar 14
CornFeb 28–Mar 14
Sweet potatoesMar 14–Mar 28
WatermelonMar 7–Mar 21
Green beansFeb 28–Mar 21
ZucchiniFeb 28–Mar 14
OkraMar 14–Mar 28
PeppersMar 7–Mar 21
BasilFeb 28–Mar 14
Butternut squashFeb 28–Mar 14
CantaloupeMar 7–Mar 21
EggplantMar 7–Mar 21
PotatoesJan 24–Feb 7
OnionsJan 10–Jan 31
CarrotsJan 31–Mar 7
LettuceFeb 7–Feb 28
BroccoliJan 24–Feb 7
BeetsJan 24–Mar 7
PeasJan 10–Jan 24
CabbageJan 24–Feb 7
RadishesJan 17–Feb 28
Brussels sproutsFeb 7–Feb 21
SpinachJan 10–Jan 31
CilantroFeb 7–Feb 28
KaleJan 24–Feb 7
Collard greensJan 24–Feb 7
TurnipsJan 24–Feb 7
DillFeb 21–Mar 7
CeleryFeb 28–Mar 7
CauliflowerFeb 7–Feb 21
LeeksFeb 7–Feb 21
Swiss chardFeb 7–Mar 7
ParsleyFeb 7–Feb 28
Tulip bulbsDec 15–Jan 15
GarlicOct 15–Nov 30
Daffodil bulbsOct 15–Nov 30
StrawberriesJan 24–Feb 7
AsparagusJan 24–Feb 7Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Jan 25 | Feb 21 | Mar 15 | Nov 15 | Dec 6 | Jan 5 |
| Hard freeze, 28°F | Jan 2 | Feb 2 | Mar 6 | Nov 30 | Dec 30 | Jan 30 |
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 Mobile Dwtn Airport (USW00013838) sits 3.7 miles from the center of Mobile at 26 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 Mobile, AL?
The average last frost date in Mobile is February 21, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after March 15.
When is the first frost in Mobile?
The first frost in fall usually comes around December 6. One year in ten it arrives before November 15.
How long is the growing season in Mobile?
About 292 days between the average last and first frost.
When should I plant tomatoes in Mobile?
Plant tomato seedlings outside from February 28 to March 14. Start seeds indoors six to eight weeks earlier.
Nearby in Alabama
- DaphneMar 15
- FairhopeMar 10
- FoleyMar 5
- EnterpriseMar 9
- PrattvilleMar 13
- MontgomeryMar 4
- DothanMar 1
- TuscaloosaMar 18
- NorthportMar 18
- AlabasterMar 12
- HelenaMar 19
- BessemerMar 23