Frost dates for 38650Myrtle, MS
The average last spring frost in Myrtle is April 8 and the average first fall frost is October 28, giving a typical growing season of about 202 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 8
- Average first fall frost
- Oct 28
- Growing season
- 202 days
Safer after Apr 25 (1-in-10 risk)
Possible by Oct 14 (1-in-10 risk)
Last frost typically in 156 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) | Apr 5 · Apr 20 · May 3 | Oct 5 · Oct 20 · Oct 31 | 183 days | 100% |
| Frost / freeze (32°F) | Mar 22 · Apr 8 · Apr 25 | Oct 14 · Oct 28 · Nov 11 | 202 days | 100% |
| Hard freeze (28°F) | Mar 8 · Mar 28 · Apr 12 | Oct 24 · Nov 5 · Nov 24 | 223 days | 100% |
Planting calendar for Myrtle
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 | Mar 8 – May 14 |
| Tomatoes | Transplant outdoors | Apr 24 – Jul 8 |
| Peppers | Start seeds indoors | Mar 8 – Apr 8 |
| Peppers | Transplant outdoors | May 8 – Jun 8 |
| Eggplant | Start seeds indoors | Mar 25 – Apr 23 |
| Eggplant | Transplant outdoors | May 8 – Jun 8 |
| Cucumbers | Sow outdoors | May 8 – Jul 18 |
| Summer squash | Sow outdoors | Apr 24 – Jun 8 |
| Winter squash & pumpkins | Sow outdoors | May 8 – Jun 8 |
| Snap beans | Sow outdoors | Apr 24 – Aug 10 |
| Sweet corn | Sow outdoors | Apr 24 – Jul 8 |
| Watermelon & cantaloupe | Sow outdoors | May 8 – Jun 8 |
| Okra | Sow outdoors | May 1 – May 24 |
| Peas | Sow outdoors (spring) | Mar 8 – Apr 23 |
| Potatoes | Plant outdoors (spring) | Mar 8 – May 8 |
| Onions | Start seeds indoors (spring) | Jan 25 – Feb 21 |
| Onions | Transplant outdoors (spring) | Mar 25 – Apr 23 |
| Broccoli | Start seeds indoors (spring) | Feb 18 – Mar 24 |
| Broccoli | Transplant outdoors (spring) | Mar 25 – Apr 23 |
| Broccoli | Start seeds indoors (fall) | Jun 28 – Jul 8 |
| Broccoli | Transplant outdoors (fall) | Jul 28 – Aug 8 |
| Cabbage | Start seeds indoors (spring) | Feb 8 – Mar 8 |
| Cabbage | Transplant outdoors (spring) | Mar 8 – Apr 8 |
| Cabbage | Start seeds indoors (fall) | Jun 18 – Jul 18 |
| Cabbage | Transplant outdoors (fall) | Jul 18 – Aug 18 |
| Leaf lettuce | Sow outdoors (spring) | Mar 8 – May 24 |
| Leaf lettuce | Sow outdoors (fall) | Jul 18 – Sep 3 |
| Spinach | Sow outdoors (spring) | Mar 1 – Apr 14 |
| Spinach | Sow outdoors (fall) | Aug 4 – Sep 8 |
| Radishes | Sow outdoors (spring) | Mar 8 – Apr 28 |
| Radishes | Sow outdoors (fall) | Jul 18 – Sep 18 |
| Kale | Sow outdoors (spring) | Mar 25 – Apr 14 |
| Kale | Sow outdoors (fall) | Jul 11 – Aug 18 |
| Carrots | Sow outdoors (spring) | Apr 8 – May 24 |
| Carrots | Sow outdoors (fall) | Jun 18 – Aug 3 |
| Garlic | Plant outdoors (fall) | Oct 18 – Nov 18 |
Where these dates come from
ZIP code 38650 is matched to the NOAA station Hickory Flat, MS, 11.1 km away, at 400 ft elevation (32 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Hickory Flat, MS (used) | 400 ft | Apr 8 | Oct 28 |
| Ripley, MS | 525 ft | Apr 3 | Oct 30 |
| Ashland, MS | 603 ft | Mar 29 | Nov 6 |
| University, MS | 408 ft | Apr 3 | Oct 31 |
Frost dates near Myrtle
- Hickory Flat, MS 38633 · last Apr 8, first Oct 28
- New Albany, MS 38652 · last Apr 8, first Oct 28
- Etta, MS 38627 · last Apr 8, first Oct 28
- Blue Mountain, MS 38610 · last Apr 3, first Oct 30
- Potts Camp, MS 38659 · last Apr 8, first Oct 28
- Ecru, MS 38841 · last Mar 21, first Nov 10
- Thaxton, MS 38871 · last Mar 28, first Nov 8
- Blue Springs, MS 38828 · last Mar 21, first Nov 10
Frequently asked questions
- When is the last frost in Myrtle, MS?
- For ZIP code 38650, the average last spring frost (32°F) is April 8, based on NOAA 1991-2020 climate normals for the Hickory Flat, MS weather station. There is a 1-in-10 chance of a frost after April 25.
- When is the first frost in Myrtle, MS?
- The average first fall frost (32°F) is October 28. There is a 1-in-10 chance of frost by October 14, so tender plants are at risk from that point on.
- How long is the growing season in 38650?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 202 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.