Frost dates for 39482Sumrall, MS
The average last spring frost in Sumrall is March 7 and the average first fall frost is November 23, giving a typical growing season of about 261 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 7
- Average first fall frost
- Nov 23
- Growing season
- 261 days
Safer after Mar 26 (1-in-10 risk)
Possible by Nov 5 (1-in-10 risk)
First frost typically in 20 days
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | Mar 2 · Mar 23 · Apr 12 | Oct 27 · Nov 11 · Nov 29 | 233 days | 100% |
| Frost / freeze (32°F) | Feb 14 · Mar 7 · Mar 26 | Nov 5 · Nov 23 · Dec 14 | 261 days | 100% |
| Hard freeze (28°F) | Jan 26 · Feb 20 · Mar 16 | Nov 14 · Dec 4 · Jan 6 | 291 days | 99% |
Planting calendar for Sumrall
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Feb 4 – Apr 12 |
| Tomatoes | Transplant outdoors | Mar 23 – Aug 3 |
| Peppers | Start seeds indoors | Feb 4 – Mar 7 |
| Peppers | Transplant outdoors | Apr 6 – May 7 |
| Eggplant | Start seeds indoors | Feb 21 – Mar 22 |
| Eggplant | Transplant outdoors | Apr 6 – May 7 |
| Cucumbers | Sow outdoors | Apr 6 – Aug 13 |
| Summer squash | Sow outdoors | Mar 23 – May 7 |
| Winter squash & pumpkins | Sow outdoors | Apr 6 – May 7 |
| Snap beans | Sow outdoors | Mar 23 – Sep 5 |
| Sweet corn | Sow outdoors | Mar 23 – Aug 3 |
| Watermelon & cantaloupe | Sow outdoors | Apr 6 – May 7 |
| Okra | Sow outdoors | Mar 30 – Apr 22 |
| Peas | Sow outdoors (spring) | Feb 4 – Mar 22 |
| Potatoes | Plant outdoors (spring) | Feb 4 – Apr 6 |
| Onions | Start seeds indoors (spring) | Dec 24 – Jan 20 |
| Onions | Transplant outdoors (spring) | Feb 21 – Mar 22 |
| Broccoli | Start seeds indoors (spring) | Jan 17 – Feb 20 |
| Broccoli | Transplant outdoors (spring) | Feb 21 – Mar 22 |
| Broccoli | Start seeds indoors (fall) | Jul 24 – Aug 3 |
| Broccoli | Transplant outdoors (fall) | Aug 23 – Sep 3 |
| Cabbage | Start seeds indoors (spring) | Jan 7 – Feb 4 |
| Cabbage | Transplant outdoors (spring) | Feb 4 – Mar 7 |
| Cabbage | Start seeds indoors (fall) | Jul 14 – Aug 13 |
| Cabbage | Transplant outdoors (fall) | Aug 13 – Sep 13 |
| Leaf lettuce | Sow outdoors (spring) | Feb 4 – Apr 22 |
| Leaf lettuce | Sow outdoors (fall) | Aug 13 – Sep 29 |
| Spinach | Sow outdoors (spring) | Jan 28 – Mar 13 |
| Spinach | Sow outdoors (fall) | Aug 30 – Oct 4 |
| Radishes | Sow outdoors (spring) | Feb 4 – Mar 27 |
| Radishes | Sow outdoors (fall) | Aug 13 – Oct 14 |
| Kale | Sow outdoors (spring) | Feb 21 – Mar 13 |
| Kale | Sow outdoors (fall) | Aug 6 – Sep 13 |
| Carrots | Sow outdoors (spring) | Mar 7 – Apr 22 |
| Carrots | Sow outdoors (fall) | Jul 14 – Aug 29 |
| Garlic | Plant outdoors (fall) | Nov 13 – Dec 14 |
Where these dates come from
ZIP code 39482 is matched to the NOAA station Hattiesburg 5Sw, MS, 25.5 km away, at 385 ft elevation (57 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Hattiesburg 5Sw, MS (used) | 385 ft | Mar 7 | Nov 23 |
| Columbia, MS | 150 ft | Mar 5 | Nov 19 |
| Collins, MS | 290 ft | Mar 17 | Nov 12 |
| Hattiesburg Chain Muni Ap, MS | 151 ft | Mar 8 | Nov 15 |
Frost dates near Sumrall
- Hattiesburg, MS 39403 · last Mar 7, first Nov 23
- Bassfield, MS 39421 · last Mar 17, first Nov 12
- Seminary, MS 39479 · last Mar 17, first Nov 12
- Columbia, MS 39429 · last Mar 5, first Nov 19
- Purvis, MS 39475 · last Mar 7, first Nov 23
- Carson, MS 39427 · last Mar 17, first Nov 12
- Moselle, MS 39459 · last Mar 8, first Nov 15
- Eastabuchie, MS 39436 · last Mar 8, first Nov 15
Frequently asked questions
- When is the last frost in Sumrall, MS?
- For ZIP code 39482, the average last spring frost (32°F) is March 7, based on NOAA 1991-2020 climate normals for the Hattiesburg 5Sw, MS weather station. There is a 1-in-10 chance of a frost after March 26.
- When is the first frost in Sumrall, MS?
- The average first fall frost (32°F) is November 23. There is a 1-in-10 chance of frost by November 5, so tender plants are at risk from that point on.
- How long is the growing season in 39482?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 261 days long.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.