Frost dates for 29426Adams Run, SC
The average last spring frost in Adams Run is March 1 and the average first fall frost is December 6, giving a typical growing season of about 284 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 1
- Average first fall frost
- Dec 6
- Growing season
- 284 days
Safer after Mar 22 (1-in-10 risk)
Possible by Nov 15 (1-in-10 risk)
First frost typically in 33 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) | Feb 22 · Mar 13 · Mar 31 | Nov 5 · Nov 21 · Dec 12 | 254 days | 100% |
| Frost / freeze (32°F) | Feb 1 · Mar 1 · Mar 22 | Nov 15 · Dec 6 · Jan 4 | 284 days | 100% |
| Hard freeze (28°F) | Jan 9 · Feb 10 · Mar 9 | Dec 1 · Dec 29 · Jan 26 | 316 days | 95% |
Planting calendar for Adams Run
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 | Jan 29 – Apr 6 |
| Tomatoes | Transplant outdoors | Mar 17 – Aug 16 |
| Peppers | Start seeds indoors | Jan 29 – Mar 1 |
| Peppers | Transplant outdoors | Mar 31 – May 1 |
| Eggplant | Start seeds indoors | Feb 15 – Mar 16 |
| Eggplant | Transplant outdoors | Mar 31 – May 1 |
| Cucumbers | Sow outdoors | Mar 31 – Aug 26 |
| Summer squash | Sow outdoors | Mar 17 – May 1 |
| Winter squash & pumpkins | Sow outdoors | Mar 31 – May 1 |
| Snap beans | Sow outdoors | Mar 17 – Sep 18 |
| Sweet corn | Sow outdoors | Mar 17 – Aug 16 |
| Watermelon & cantaloupe | Sow outdoors | Mar 31 – May 1 |
| Okra | Sow outdoors | Mar 24 – Apr 16 |
| Peas | Sow outdoors (spring) | Jan 29 – Mar 16 |
| Potatoes | Plant outdoors (spring) | Jan 29 – Mar 31 |
| Onions | Start seeds indoors (spring) | Dec 18 – Jan 14 |
| Onions | Transplant outdoors (spring) | Feb 15 – Mar 16 |
| Broccoli | Start seeds indoors (spring) | Jan 11 – Feb 14 |
| Broccoli | Transplant outdoors (spring) | Feb 15 – Mar 16 |
| Broccoli | Start seeds indoors (fall) | Aug 6 – Aug 16 |
| Broccoli | Transplant outdoors (fall) | Sep 5 – Sep 16 |
| Cabbage | Start seeds indoors (spring) | Jan 1 – Jan 29 |
| Cabbage | Transplant outdoors (spring) | Jan 29 – Mar 1 |
| Cabbage | Start seeds indoors (fall) | Jul 27 – Aug 26 |
| Cabbage | Transplant outdoors (fall) | Aug 26 – Sep 26 |
| Leaf lettuce | Sow outdoors (spring) | Jan 29 – Apr 16 |
| Leaf lettuce | Sow outdoors (fall) | Aug 26 – Oct 12 |
| Spinach | Sow outdoors (spring) | Jan 22 – Mar 7 |
| Spinach | Sow outdoors (fall) | Sep 12 – Oct 17 |
| Radishes | Sow outdoors (spring) | Jan 29 – Mar 21 |
| Radishes | Sow outdoors (fall) | Aug 26 – Oct 27 |
| Kale | Sow outdoors (spring) | Feb 15 – Mar 7 |
| Kale | Sow outdoors (fall) | Aug 19 – Sep 26 |
| Carrots | Sow outdoors (spring) | Mar 1 – Apr 16 |
| Carrots | Sow outdoors (fall) | Jul 27 – Sep 11 |
| Garlic | Plant outdoors (fall) | Nov 26 – Dec 27 |
Where these dates come from
ZIP code 29426 is matched to the NOAA station Edisto Is Middleton Plantation, SC, 19.1 km away, at 12 ft elevation (11 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Edisto Is Middleton Plantation, SC (used) | 12 ft | Mar 1 | Dec 6 |
| Summerville 4W, SC | 65 ft | Mar 22 | Nov 12 |
| Charleston Intl Ap, SC | 40 ft | Mar 7 | Nov 27 |
| Edisto Beach Sp, SC | 5 ft | Mar 1 | Dec 6 |
Frost dates near Adams Run
- Hollywood, SC 29449 · last Mar 1, first Dec 6
- Ravenel, SC 29470 · last Mar 7, first Nov 27
- Jacksonboro, SC 29452 · last Mar 1, first Dec 6
- Wadmalaw Island, SC 29487 · last Mar 1, first Dec 6
- Johns Island, SC 29455 · last Mar 7, first Nov 27
- Green Pond, SC 29446 · last Mar 1, first Dec 6
- Cottageville, SC 29435 · last Mar 19, first Nov 12
- Edisto Island, SC 29438 · last Mar 1, first Dec 6
Frequently asked questions
- When is the last frost in Adams Run, SC?
- For ZIP code 29426, the average last spring frost (32°F) is March 1, based on NOAA 1991-2020 climate normals for the Edisto Is Middleton Plantation, SC weather station. There is a 1-in-10 chance of a frost after March 22.
- When is the first frost in Adams Run, SC?
- The average first fall frost (32°F) is December 6. There is a 1-in-10 chance of frost by November 15, so tender plants are at risk from that point on.
- How long is the growing season in 29426?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 284 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.