Frost dates for 29577Myrtle Beach, SC
The average last spring frost in Myrtle Beach is March 21 and the average first fall frost is November 13, giving a typical growing season of about 239 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 21
- Average first fall frost
- Nov 13
- Growing season
- 239 days
Safer after Apr 7 (1-in-10 risk)
Possible by Oct 31 (1-in-10 risk)
First frost typically in 10 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 16 · Apr 3 · Apr 18 | Oct 22 · Nov 3 · Nov 18 | 216 days | 100% |
| Frost / freeze (32°F) | Mar 2 · Mar 21 · Apr 7 | Oct 31 · Nov 13 · Dec 3 | 239 days | 100% |
| Hard freeze (28°F) | Feb 8 · Mar 7 · Mar 28 | Nov 7 · Nov 26 · Dec 26 | 267 days | 100% |
Planting calendar for Myrtle Beach
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 18 – Apr 26 |
| Tomatoes | Transplant outdoors | Apr 6 – Jul 24 |
| Peppers | Start seeds indoors | Feb 18 – Mar 21 |
| Peppers | Transplant outdoors | Apr 20 – May 21 |
| Eggplant | Start seeds indoors | Mar 7 – Apr 5 |
| Eggplant | Transplant outdoors | Apr 20 – May 21 |
| Cucumbers | Sow outdoors | Apr 20 – Aug 3 |
| Summer squash | Sow outdoors | Apr 6 – May 21 |
| Winter squash & pumpkins | Sow outdoors | Apr 20 – May 21 |
| Snap beans | Sow outdoors | Apr 6 – Aug 26 |
| Sweet corn | Sow outdoors | Apr 6 – Jul 24 |
| Watermelon & cantaloupe | Sow outdoors | Apr 20 – May 21 |
| Okra | Sow outdoors | Apr 13 – May 6 |
| Peas | Sow outdoors (spring) | Feb 18 – Apr 5 |
| Potatoes | Plant outdoors (spring) | Feb 18 – Apr 20 |
| Onions | Start seeds indoors (spring) | Jan 7 – Feb 3 |
| Onions | Transplant outdoors (spring) | Mar 7 – Apr 5 |
| Broccoli | Start seeds indoors (spring) | Jan 31 – Mar 6 |
| Broccoli | Transplant outdoors (spring) | Mar 7 – Apr 5 |
| Broccoli | Start seeds indoors (fall) | Jul 14 – Jul 24 |
| Broccoli | Transplant outdoors (fall) | Aug 13 – Aug 24 |
| Cabbage | Start seeds indoors (spring) | Jan 21 – Feb 18 |
| Cabbage | Transplant outdoors (spring) | Feb 18 – Mar 21 |
| Cabbage | Start seeds indoors (fall) | Jul 4 – Aug 3 |
| Cabbage | Transplant outdoors (fall) | Aug 3 – Sep 3 |
| Leaf lettuce | Sow outdoors (spring) | Feb 18 – May 6 |
| Leaf lettuce | Sow outdoors (fall) | Aug 3 – Sep 19 |
| Spinach | Sow outdoors (spring) | Feb 11 – Mar 27 |
| Spinach | Sow outdoors (fall) | Aug 20 – Sep 24 |
| Radishes | Sow outdoors (spring) | Feb 18 – Apr 10 |
| Radishes | Sow outdoors (fall) | Aug 3 – Oct 4 |
| Kale | Sow outdoors (spring) | Mar 7 – Mar 27 |
| Kale | Sow outdoors (fall) | Jul 27 – Sep 3 |
| Carrots | Sow outdoors (spring) | Mar 21 – May 6 |
| Carrots | Sow outdoors (fall) | Jul 4 – Aug 19 |
| Garlic | Plant outdoors (fall) | Nov 3 – Dec 4 |
Where these dates come from
ZIP code 29577 is matched to the NOAA station Myrtle Beach, SC, 10.5 km away, at 39 ft elevation (23 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Myrtle Beach, SC (used) | 39 ft | Mar 21 | Nov 13 |
| Conway, SC | 20 ft | Mar 15 | Nov 22 |
| N Myrtle Bch Ap, SC | 32 ft | Mar 13 | Nov 20 |
| Brookgreen Gardens, SC | 20 ft | Mar 18 | Nov 18 |
Frost dates near Myrtle Beach
- Myrtle Beach, SC 29588 · last Mar 15, first Nov 22
- Murrells Inlet, SC 29576 · last Mar 18, first Nov 18
- Conway, SC 29526 · last Mar 15, first Nov 22
- North Myrtle Beach, SC 29597 · last Mar 13, first Nov 20
- Longs, SC 29568 · last Mar 13, first Nov 20
- Little River, SC 29566 · last Mar 13, first Nov 20
- Pawleys Island, SC 29585 · last Mar 18, first Nov 18
- Calabash, NC 28467 · last Mar 26, first Nov 11
Frequently asked questions
- When is the last frost in Myrtle Beach, SC?
- For ZIP code 29577, the average last spring frost (32°F) is March 21, based on NOAA 1991-2020 climate normals for the Myrtle Beach, SC weather station. There is a 1-in-10 chance of a frost after April 7.
- When is the first frost in Myrtle Beach, SC?
- The average first fall frost (32°F) is November 13. There is a 1-in-10 chance of frost by October 31, so tender plants are at risk from that point on.
- How long is the growing season in 29577?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 239 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.