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Mississippi frost dates
Across the 13Mississippi weather stations below, the average last spring frost ranges from Feb 23 in Gulfport - Biloxi to Apr 6 in Holly Springs 4 N. The statewide middle is about Mar 14 for the last spring frost and Nov 13 for the first fall frost. Gulfport - Biloxi has the longest growing season, about 283 days. Hardiness zones in these places: 7b, 8a, 8b, 9a.
Frost dates by city
| Place | Zone | Last spring frost | 90% safe after | First fall frost | Frost-free days |
|---|---|---|---|---|---|
| Gulfport - Biloxi | 9a | Feb 23 | Mar 16 | Dec 3 | 283 |
| Pascagoula Lott | 9a | Mar 1 | Mar 24 | Nov 24 | 268 |
| Jackson Hawkins | 8b | Mar 6 | Mar 24 | Nov 19 | 258 |
| Hattiesburg Chain | 8b | Mar 8 | Mar 28 | Nov 15 | 252 |
| Mccomb/Pike /John E Lewis | 8b | Mar 11 | Apr 2 | Nov 18 | 252 |
| Greenville | 8b | Mar 12 | Mar 30 | Nov 13 | 246 |
| Jackson | 8b | Mar 14 | Apr 2 | Nov 14 | 245 |
| Meridian Naas | 8b | Mar 14 | Apr 1 | Nov 12 | 243 |
| Meridian Key | 8b | Mar 16 | Apr 3 | Nov 12 | 241 |
| Greenwood Leflore | 8b | Mar 17 | Apr 5 | Nov 5 | 233 |
| Tupelo | 8a | Mar 21 | Apr 6 | Nov 10 | 234 |
| Newton 5 Ene | 8b | Mar 24 | Apr 10 | Nov 5 | 226 |
| Holly Springs 4 N | 7b | Apr 6 | Apr 23 | Oct 28 | 205 |
Dates are the 50% probability of a 32°F freeze (NOAA 1991–2020 normals); "90% safe after" is the date after which a later spring freeze happens in only 1 year in 10.
When to plant in Mississippi
Using the statewide middle dates (last frost Mar 14, first frost Nov 13). Adjust for your town with the table above or the planting calendar.
| Plant | When to plant in Mississippi |
|---|---|
| Tomatoes | Mar 21 – Apr 4 |
| Peas | Jan 31 – Feb 21; fall: Aug 21 – Sep 11 |
| Potatoes | Feb 14 – Mar 7 |
| Green beans | Mar 21 – Apr 4; fall: Aug 28 – Sep 11 |
| Garlic | Nov 13 – Dec 11 |
| Tulips | Oct 30 – Dec 11 |