Frost dates for 39829Calvary, GA
The average last spring frost in Calvary is March 11 and the average first fall frost is November 21, giving a typical growing season of about 255 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 11
- Average first fall frost
- Nov 21
- Growing season
- 255 days
Safer after Mar 31 (1-in-10 risk)
Possible by Nov 4 (1-in-10 risk)
First frost typically in 18 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 27 · Apr 12 | Oct 26 · Nov 10 · Dec 1 | 230 days | 100% |
| Frost / freeze (32°F) | Feb 20 · Mar 11 · Mar 31 | Nov 4 · Nov 21 · Dec 15 | 255 days | 100% |
| Hard freeze (28°F) | Jan 29 · Feb 25 · Mar 18 | Nov 16 · Dec 6 · Jan 10 | 286 days | 100% |
Planting calendar for Calvary
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 8 – Apr 16 |
| Tomatoes | Transplant outdoors | Mar 27 – Aug 1 |
| Peppers | Start seeds indoors | Feb 8 – Mar 11 |
| Peppers | Transplant outdoors | Apr 10 – May 11 |
| Eggplant | Start seeds indoors | Feb 25 – Mar 26 |
| Eggplant | Transplant outdoors | Apr 10 – May 11 |
| Cucumbers | Sow outdoors | Apr 10 – Aug 11 |
| Summer squash | Sow outdoors | Mar 27 – May 11 |
| Winter squash & pumpkins | Sow outdoors | Apr 10 – May 11 |
| Snap beans | Sow outdoors | Mar 27 – Sep 3 |
| Sweet corn | Sow outdoors | Mar 27 – Aug 1 |
| Watermelon & cantaloupe | Sow outdoors | Apr 10 – May 11 |
| Okra | Sow outdoors | Apr 3 – Apr 26 |
| Peas | Sow outdoors (spring) | Feb 8 – Mar 26 |
| Potatoes | Plant outdoors (spring) | Feb 8 – Apr 10 |
| Onions | Start seeds indoors (spring) | Dec 28 – Jan 24 |
| Onions | Transplant outdoors (spring) | Feb 25 – Mar 26 |
| Broccoli | Start seeds indoors (spring) | Jan 21 – Feb 24 |
| Broccoli | Transplant outdoors (spring) | Feb 25 – Mar 26 |
| Broccoli | Start seeds indoors (fall) | Jul 22 – Aug 1 |
| Broccoli | Transplant outdoors (fall) | Aug 21 – Sep 1 |
| Cabbage | Start seeds indoors (spring) | Jan 11 – Feb 8 |
| Cabbage | Transplant outdoors (spring) | Feb 8 – Mar 11 |
| Cabbage | Start seeds indoors (fall) | Jul 12 – Aug 11 |
| Cabbage | Transplant outdoors (fall) | Aug 11 – Sep 11 |
| Leaf lettuce | Sow outdoors (spring) | Feb 8 – Apr 26 |
| Leaf lettuce | Sow outdoors (fall) | Aug 11 – Sep 27 |
| Spinach | Sow outdoors (spring) | Feb 1 – Mar 17 |
| Spinach | Sow outdoors (fall) | Aug 28 – Oct 2 |
| Radishes | Sow outdoors (spring) | Feb 8 – Mar 31 |
| Radishes | Sow outdoors (fall) | Aug 11 – Oct 12 |
| Kale | Sow outdoors (spring) | Feb 25 – Mar 17 |
| Kale | Sow outdoors (fall) | Aug 4 – Sep 11 |
| Carrots | Sow outdoors (spring) | Mar 11 – Apr 26 |
| Carrots | Sow outdoors (fall) | Jul 12 – Aug 27 |
| Garlic | Plant outdoors (fall) | Nov 11 – Dec 12 |
Where these dates come from
ZIP code 39829 is matched to the NOAA station Cairo 1Sw, GA, 16.5 km away, at 201 ft elevation (19 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Cairo 1Sw, GA (used) | 201 ft | Mar 11 | Nov 21 |
| Bainbridge Intl Paper, GA | 190 ft | Mar 14 | Nov 17 |
| Quincy 3 Ssw, FL | 245 ft | Mar 13 | Nov 22 |
| Tallahassee, FL | 63 ft | Mar 11 | Nov 21 |
Frost dates near Calvary
- Whigham, GA 39897 · last Mar 11, first Nov 21
- Attapulgus, GA 39815 · last Mar 14, first Nov 17
- Cairo, GA 39828 · last Mar 11, first Nov 21
- Havana, FL 32333 · last Mar 14, first Nov 17
- Climax, GA 39834 · last Mar 14, first Nov 17
- Fowlstown, GA 39852 · last Mar 14, first Nov 17
- Tallahassee, FL 32312 · last Mar 11, first Nov 21
- Quincy, FL 32352 · last Mar 14, first Nov 17
Frequently asked questions
- When is the last frost in Calvary, GA?
- For ZIP code 39829, the average last spring frost (32°F) is March 11, based on NOAA 1991-2020 climate normals for the Cairo 1Sw, GA weather station. There is a 1-in-10 chance of a frost after March 31.
- When is the first frost in Calvary, GA?
- The average first fall frost (32°F) is November 21. There is a 1-in-10 chance of frost by November 4, so tender plants are at risk from that point on.
- How long is the growing season in 39829?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 255 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.