Frost dates for 29588Myrtle Beach, SC
The average last spring frost in Myrtle Beach is March 15 and the average first fall frost is November 22, giving a typical growing season of about 254 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 15
- Average first fall frost
- Nov 22
- Growing season
- 254 days
Safer after Apr 1 (1-in-10 risk)
Possible by Nov 5 (1-in-10 risk)
First frost typically in 19 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 9 · Mar 28 · Apr 13 | Oct 26 · Nov 9 · Nov 28 | 227 days | 100% |
| Frost / freeze (32°F) | Feb 21 · Mar 15 · Apr 1 | Nov 5 · Nov 22 · Dec 18 | 254 days | 100% |
| Hard freeze (28°F) | Jan 30 · Feb 28 · Mar 22 | Nov 17 · Dec 7 · Jan 7 | 287 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 12 – Apr 20 |
| Tomatoes | Transplant outdoors | Mar 31 – Aug 2 |
| Peppers | Start seeds indoors | Feb 12 – Mar 15 |
| Peppers | Transplant outdoors | Apr 14 – May 15 |
| Eggplant | Start seeds indoors | Mar 1 – Mar 30 |
| Eggplant | Transplant outdoors | Apr 14 – May 15 |
| Cucumbers | Sow outdoors | Apr 14 – Aug 12 |
| Summer squash | Sow outdoors | Mar 31 – May 15 |
| Winter squash & pumpkins | Sow outdoors | Apr 14 – May 15 |
| Snap beans | Sow outdoors | Mar 31 – Sep 4 |
| Sweet corn | Sow outdoors | Mar 31 – Aug 2 |
| Watermelon & cantaloupe | Sow outdoors | Apr 14 – May 15 |
| Okra | Sow outdoors | Apr 7 – Apr 30 |
| Peas | Sow outdoors (spring) | Feb 12 – Mar 30 |
| Potatoes | Plant outdoors (spring) | Feb 12 – Apr 14 |
| Onions | Start seeds indoors (spring) | Jan 1 – Jan 28 |
| Onions | Transplant outdoors (spring) | Mar 1 – Mar 30 |
| Broccoli | Start seeds indoors (spring) | Jan 25 – Feb 28 |
| Broccoli | Transplant outdoors (spring) | Mar 1 – Mar 30 |
| Broccoli | Start seeds indoors (fall) | Jul 23 – Aug 2 |
| Broccoli | Transplant outdoors (fall) | Aug 22 – Sep 2 |
| Cabbage | Start seeds indoors (spring) | Jan 15 – Feb 12 |
| Cabbage | Transplant outdoors (spring) | Feb 12 – Mar 15 |
| Cabbage | Start seeds indoors (fall) | Jul 13 – Aug 12 |
| Cabbage | Transplant outdoors (fall) | Aug 12 – Sep 12 |
| Leaf lettuce | Sow outdoors (spring) | Feb 12 – Apr 30 |
| Leaf lettuce | Sow outdoors (fall) | Aug 12 – Sep 28 |
| Spinach | Sow outdoors (spring) | Feb 5 – Mar 21 |
| Spinach | Sow outdoors (fall) | Aug 29 – Oct 3 |
| Radishes | Sow outdoors (spring) | Feb 12 – Apr 4 |
| Radishes | Sow outdoors (fall) | Aug 12 – Oct 13 |
| Kale | Sow outdoors (spring) | Mar 1 – Mar 21 |
| Kale | Sow outdoors (fall) | Aug 5 – Sep 12 |
| Carrots | Sow outdoors (spring) | Mar 15 – Apr 30 |
| Carrots | Sow outdoors (fall) | Jul 13 – Aug 28 |
| Garlic | Plant outdoors (fall) | Nov 12 – Dec 13 |
Where these dates come from
ZIP code 29588 is matched to the NOAA station Conway, SC, 14.1 km away, at 20 ft elevation (10 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Conway, SC (used) | 20 ft | Mar 15 | Nov 22 |
| Myrtle Beach, SC | 39 ft | Mar 21 | Nov 13 |
| Brookgreen Gardens, SC | 20 ft | Mar 18 | Nov 18 |
| N Myrtle Bch Ap, SC | 32 ft | Mar 13 | Nov 20 |
Frost dates near Myrtle Beach
- Myrtle Beach, SC 29579 · last Mar 15, first Nov 22
- Conway, SC 29527 · last Mar 15, first Nov 22
- Murrells Inlet, SC 29576 · last Mar 18, first Nov 18
- Longs, SC 29568 · last Mar 13, first Nov 20
- North Myrtle Beach, SC 29597 · last Mar 13, first Nov 20
- Pawleys Island, SC 29585 · last Mar 18, first Nov 18
- Aynor, SC 29511 · last Mar 15, first Nov 22
- Little River, SC 29566 · last Mar 13, first Nov 20
Frequently asked questions
- When is the last frost in Myrtle Beach, SC?
- For ZIP code 29588, the average last spring frost (32°F) is March 15, based on NOAA 1991-2020 climate normals for the Conway, SC weather station. There is a 1-in-10 chance of a frost after April 1.
- When is the first frost in Myrtle Beach, SC?
- The average first fall frost (32°F) is November 22. 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 29588?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 254 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.