Frost dates for 27846Jamesville, NC
The average last spring frost in Jamesville is March 20 and the average first fall frost is November 12, giving a typical growing season of about 239 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 20
- Average first fall frost
- Nov 12
- Growing season
- 239 days
Safer after Apr 5 (1-in-10 risk)
Possible by Oct 31 (1-in-10 risk)
First frost typically in 9 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 17 · Apr 2 · Apr 17 | Oct 21 · Nov 1 · Nov 16 | 214 days | 100% |
| Frost / freeze (32°F) | Mar 1 · Mar 20 · Apr 5 | Oct 31 · Nov 12 · Dec 4 | 239 days | 100% |
| Hard freeze (28°F) | Feb 7 · Mar 5 · Mar 25 | Nov 7 · Nov 26 · Dec 25 | 268 days | 100% |
Planting calendar for Jamesville
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 17 – Apr 25 |
| Tomatoes | Transplant outdoors | Apr 5 – Jul 23 |
| Peppers | Start seeds indoors | Feb 17 – Mar 20 |
| Peppers | Transplant outdoors | Apr 19 – May 20 |
| Eggplant | Start seeds indoors | Mar 6 – Apr 4 |
| Eggplant | Transplant outdoors | Apr 19 – May 20 |
| Cucumbers | Sow outdoors | Apr 19 – Aug 2 |
| Summer squash | Sow outdoors | Apr 5 – May 20 |
| Winter squash & pumpkins | Sow outdoors | Apr 19 – May 20 |
| Snap beans | Sow outdoors | Apr 5 – Aug 25 |
| Sweet corn | Sow outdoors | Apr 5 – Jul 23 |
| Watermelon & cantaloupe | Sow outdoors | Apr 19 – May 20 |
| Okra | Sow outdoors | Apr 12 – May 5 |
| Peas | Sow outdoors (spring) | Feb 17 – Apr 4 |
| Potatoes | Plant outdoors (spring) | Feb 17 – Apr 19 |
| Onions | Start seeds indoors (spring) | Jan 6 – Feb 2 |
| Onions | Transplant outdoors (spring) | Mar 6 – Apr 4 |
| Broccoli | Start seeds indoors (spring) | Jan 30 – Mar 5 |
| Broccoli | Transplant outdoors (spring) | Mar 6 – Apr 4 |
| Broccoli | Start seeds indoors (fall) | Jul 13 – Jul 23 |
| Broccoli | Transplant outdoors (fall) | Aug 12 – Aug 23 |
| Cabbage | Start seeds indoors (spring) | Jan 20 – Feb 17 |
| Cabbage | Transplant outdoors (spring) | Feb 17 – Mar 20 |
| Cabbage | Start seeds indoors (fall) | Jul 3 – Aug 2 |
| Cabbage | Transplant outdoors (fall) | Aug 2 – Sep 2 |
| Leaf lettuce | Sow outdoors (spring) | Feb 17 – May 5 |
| Leaf lettuce | Sow outdoors (fall) | Aug 2 – Sep 18 |
| Spinach | Sow outdoors (spring) | Feb 10 – Mar 26 |
| Spinach | Sow outdoors (fall) | Aug 19 – Sep 23 |
| Radishes | Sow outdoors (spring) | Feb 17 – Apr 9 |
| Radishes | Sow outdoors (fall) | Aug 2 – Oct 3 |
| Kale | Sow outdoors (spring) | Mar 6 – Mar 26 |
| Kale | Sow outdoors (fall) | Jul 26 – Sep 2 |
| Carrots | Sow outdoors (spring) | Mar 20 – May 5 |
| Carrots | Sow outdoors (fall) | Jul 3 – Aug 18 |
| Garlic | Plant outdoors (fall) | Nov 2 – Dec 3 |
Where these dates come from
ZIP code 27846 is matched to the NOAA station Williamston 1 E, NC, 14.2 km away, at 20 ft elevation (0 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Williamston 1 E, NC (used) | 20 ft | Mar 20 | Nov 12 |
| Plymouth 5 E, NC | 20 ft | Mar 31 | Nov 7 |
| Washington Wwtp 4W, NC | 10 ft | Mar 22 | Nov 15 |
| Belhaven 3 Ne, NC | 0 ft | Mar 25 | Nov 11 |
Frost dates near Jamesville
- Plymouth, NC 27962 · last Mar 31, first Nov 7
- Williamston, NC 27892 · last Mar 20, first Nov 12
- Pinetown, NC 27865 · last Mar 25, first Nov 11
- Everetts, NC 27825 · last Mar 20, first Nov 12
- Pantego, NC 27860 · last Mar 25, first Nov 11
- Windsor, NC 27983 · last Mar 20, first Nov 12
- Washington, NC 27889 · last Mar 22, first Nov 15
- Roper, NC 27970 · last Mar 31, first Nov 7
Frequently asked questions
- When is the last frost in Jamesville, NC?
- For ZIP code 27846, the average last spring frost (32°F) is March 20, based on NOAA 1991-2020 climate normals for the Williamston 1 E, NC weather station. There is a 1-in-10 chance of a frost after April 5.
- When is the first frost in Jamesville, NC?
- The average first fall frost (32°F) is November 12. 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 27846?
- 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.