Frost dates for 38839Derma, MS
The average last spring frost in Derma is March 28 and the average first fall frost is November 5, giving a typical growing season of about 223 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 28
- Average first fall frost
- Nov 5
- Growing season
- 223 days
Safer after Apr 11 (1-in-10 risk)
Possible by Oct 23 (1-in-10 risk)
First frost typically in 2 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 24 · Apr 8 · Apr 22 | Oct 14 · Oct 27 · Nov 8 | 201 days | 100% |
| Frost / freeze (32°F) | Mar 6 · Mar 28 · Apr 11 | Oct 23 · Nov 5 · Nov 22 | 223 days | 100% |
| Hard freeze (28°F) | Feb 21 · Mar 12 · Mar 31 | Nov 1 · Nov 17 · Dec 5 | 249 days | 100% |
Planting calendar for Derma
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 25 – May 3 |
| Tomatoes | Transplant outdoors | Apr 13 – Jul 16 |
| Peppers | Start seeds indoors | Feb 25 – Mar 28 |
| Peppers | Transplant outdoors | Apr 27 – May 28 |
| Eggplant | Start seeds indoors | Mar 14 – Apr 12 |
| Eggplant | Transplant outdoors | Apr 27 – May 28 |
| Cucumbers | Sow outdoors | Apr 27 – Jul 26 |
| Summer squash | Sow outdoors | Apr 13 – May 28 |
| Winter squash & pumpkins | Sow outdoors | Apr 27 – May 28 |
| Snap beans | Sow outdoors | Apr 13 – Aug 18 |
| Sweet corn | Sow outdoors | Apr 13 – Jul 16 |
| Watermelon & cantaloupe | Sow outdoors | Apr 27 – May 28 |
| Okra | Sow outdoors | Apr 20 – May 13 |
| Peas | Sow outdoors (spring) | Feb 25 – Apr 12 |
| Potatoes | Plant outdoors (spring) | Feb 25 – Apr 27 |
| Onions | Start seeds indoors (spring) | Jan 14 – Feb 10 |
| Onions | Transplant outdoors (spring) | Mar 14 – Apr 12 |
| Broccoli | Start seeds indoors (spring) | Feb 7 – Mar 13 |
| Broccoli | Transplant outdoors (spring) | Mar 14 – Apr 12 |
| Broccoli | Start seeds indoors (fall) | Jul 6 – Jul 16 |
| Broccoli | Transplant outdoors (fall) | Aug 5 – Aug 16 |
| Cabbage | Start seeds indoors (spring) | Jan 28 – Feb 25 |
| Cabbage | Transplant outdoors (spring) | Feb 25 – Mar 28 |
| Cabbage | Start seeds indoors (fall) | Jun 26 – Jul 26 |
| Cabbage | Transplant outdoors (fall) | Jul 26 – Aug 26 |
| Leaf lettuce | Sow outdoors (spring) | Feb 25 – May 13 |
| Leaf lettuce | Sow outdoors (fall) | Jul 26 – Sep 11 |
| Spinach | Sow outdoors (spring) | Feb 18 – Apr 3 |
| Spinach | Sow outdoors (fall) | Aug 12 – Sep 16 |
| Radishes | Sow outdoors (spring) | Feb 25 – Apr 17 |
| Radishes | Sow outdoors (fall) | Jul 26 – Sep 26 |
| Kale | Sow outdoors (spring) | Mar 14 – Apr 3 |
| Kale | Sow outdoors (fall) | Jul 19 – Aug 26 |
| Carrots | Sow outdoors (spring) | Mar 28 – May 13 |
| Carrots | Sow outdoors (fall) | Jun 26 – Aug 11 |
| Garlic | Plant outdoors (fall) | Oct 26 – Nov 26 |
Where these dates come from
ZIP code 38839 is matched to the NOAA station Calhoun City, MS, 1 km away, at 268 ft elevation (22 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Calhoun City, MS (used) | 268 ft | Mar 28 | Nov 5 |
| Houston, MS | 290 ft | Mar 28 | Nov 1 |
| Eupora 2 E, MS | 440 ft | Mar 30 | Nov 4 |
| Pontotoc Exp Stn, MS | 405 ft | Mar 28 | Nov 8 |
Frost dates near Derma
- Calhoun City, MS 38916 · last Mar 28, first Nov 5
- Pittsboro, MS 38951 · last Mar 28, first Nov 5
- Vardaman, MS 38878 · last Mar 28, first Nov 5
- Big Creek, MS 38914 · last Mar 28, first Nov 5
- Slate Spring, MS 38955 · last Mar 28, first Nov 5
- Bruce, MS 38915 · last Mar 28, first Nov 5
- Bellefontaine, MS 39737 · last Mar 30, first Nov 4
- Mantee, MS 39751 · last Mar 30, first Nov 4
Frequently asked questions
- When is the last frost in Derma, MS?
- For ZIP code 38839, the average last spring frost (32°F) is March 28, based on NOAA 1991-2020 climate normals for the Calhoun City, MS weather station. There is a 1-in-10 chance of a frost after April 11.
- When is the first frost in Derma, MS?
- The average first fall frost (32°F) is November 5. There is a 1-in-10 chance of frost by October 23, so tender plants are at risk from that point on.
- How long is the growing season in 38839?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 223 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.