Last frost date in Hattiesburg, MS
Expect the last frost in Hattiesburg around March 7. Frost after March 26 happens in only one year out of ten. The first fall frost usually arrives about November 23, which leaves 261 frost-free days. An early freeze before November 5 happens one year in ten.
- Safe after (10% risk)
- Mar 26
- Average first frost
- Nov 23
- Frost-free season
- 261 days
- Hard freeze (28°F) ends
- Feb 20
No frost in the next 7 nights
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2249°
- FriOct 2347°
- SatOct 2446°
- SunOct 2546°
- MonOct 2649°
- TueOct 2749°
- WedOct 2848°
Planting calendar for Hattiesburg
Windows count forward or back from the average frost dates above. Click a crop for dates across Mississippi.
TomatoesMar 14–Mar 28
PumpkinsMar 21–Apr 4
SunflowersMar 7–Mar 28
CucumbersMar 21–Mar 28
CornMar 14–Mar 28
Sweet potatoesMar 28–Apr 11
WatermelonMar 21–Apr 4
Green beansMar 14–Apr 4
ZucchiniMar 14–Mar 28
OkraMar 28–Apr 11
PeppersMar 21–Apr 4
BasilMar 14–Mar 28
Butternut squashMar 14–Mar 28
CantaloupeMar 21–Apr 4
EggplantMar 21–Apr 4
PotatoesFeb 7–Feb 21
OnionsJan 24–Feb 14
CarrotsFeb 14–Mar 21
LettuceFeb 21–Mar 14
BroccoliFeb 7–Feb 21
BeetsFeb 7–Mar 21
PeasJan 24–Feb 7
CabbageFeb 7–Feb 21
RadishesJan 31–Mar 14
Brussels sproutsFeb 21–Mar 7
SpinachJan 24–Feb 14
CilantroFeb 21–Mar 14
KaleFeb 7–Feb 21
Collard greensFeb 7–Feb 21
TurnipsFeb 7–Feb 21
DillMar 7–Mar 21
CeleryMar 14–Mar 21
CauliflowerFeb 21–Mar 7
LeeksFeb 21–Mar 7
Swiss chardFeb 21–Mar 21
ParsleyFeb 21–Mar 14
Tulip bulbsNov 9–Dec 14
GarlicOct 15–Nov 30
Daffodil bulbsOct 15–Nov 30
StrawberriesFeb 7–Feb 21
AsparagusFeb 7–Feb 21Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Feb 14 | Mar 7 | Mar 26 | Nov 5 | Nov 23 | Dec 14 |
| Hard freeze, 28°F | Jan 26 | Feb 20 | Mar 16 | Nov 14 | Dec 4 | Jan 6 |
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 Hattiesburg 5SW (USC00223887) sits 3.9 miles from the center of Hattiesburg at 385 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 Hattiesburg, MS?
The average last frost date in Hattiesburg is March 7, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after March 26.
When is the first frost in Hattiesburg?
The first frost in fall usually comes around November 23. One year in ten it arrives before November 5.
How long is the growing season in Hattiesburg?
About 261 days between the average last and first frost.
When should I plant tomatoes in Hattiesburg?
Plant tomato seedlings outside from March 14 to March 28. Start seeds indoors six to eight weeks earlier.