Frost dates for 30442Millen, GA
The average last spring frost in Millen is March 14 and the average first fall frost is November 15, giving a typical growing season of about 248 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 14
- Average first fall frost
- Nov 15
- Growing season
- 248 days
Safer after Apr 5 (1-in-10 risk)
Possible by Nov 1 (1-in-10 risk)
First frost typically in 12 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 7 · Mar 30 · Apr 16 | Oct 22 · Nov 5 · Nov 18 | 224 days | 100% |
| Frost / freeze (32°F) | Feb 19 · Mar 14 · Apr 5 | Nov 1 · Nov 15 · Dec 5 | 248 days | 100% |
| Hard freeze (28°F) | Jan 29 · Feb 26 · Mar 20 | Nov 9 · Nov 29 · Dec 31 | 279 days | 100% |
Planting calendar for Millen
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 11 – Apr 19 |
| Tomatoes | Transplant outdoors | Mar 30 – Jul 26 |
| Peppers | Start seeds indoors | Feb 11 – Mar 14 |
| Peppers | Transplant outdoors | Apr 13 – May 14 |
| Eggplant | Start seeds indoors | Feb 28 – Mar 29 |
| Eggplant | Transplant outdoors | Apr 13 – May 14 |
| Cucumbers | Sow outdoors | Apr 13 – Aug 5 |
| Summer squash | Sow outdoors | Mar 30 – May 14 |
| Winter squash & pumpkins | Sow outdoors | Apr 13 – May 14 |
| Snap beans | Sow outdoors | Mar 30 – Aug 28 |
| Sweet corn | Sow outdoors | Mar 30 – Jul 26 |
| Watermelon & cantaloupe | Sow outdoors | Apr 13 – May 14 |
| Okra | Sow outdoors | Apr 6 – Apr 29 |
| Peas | Sow outdoors (spring) | Feb 11 – Mar 29 |
| Potatoes | Plant outdoors (spring) | Feb 11 – Apr 13 |
| Onions | Start seeds indoors (spring) | Dec 31 – Jan 27 |
| Onions | Transplant outdoors (spring) | Feb 28 – Mar 29 |
| Broccoli | Start seeds indoors (spring) | Jan 24 – Feb 27 |
| Broccoli | Transplant outdoors (spring) | Feb 28 – Mar 29 |
| Broccoli | Start seeds indoors (fall) | Jul 16 – Jul 26 |
| Broccoli | Transplant outdoors (fall) | Aug 15 – Aug 26 |
| Cabbage | Start seeds indoors (spring) | Jan 14 – Feb 11 |
| Cabbage | Transplant outdoors (spring) | Feb 11 – Mar 14 |
| Cabbage | Start seeds indoors (fall) | Jul 6 – Aug 5 |
| Cabbage | Transplant outdoors (fall) | Aug 5 – Sep 5 |
| Leaf lettuce | Sow outdoors (spring) | Feb 11 – Apr 29 |
| Leaf lettuce | Sow outdoors (fall) | Aug 5 – Sep 21 |
| Spinach | Sow outdoors (spring) | Feb 4 – Mar 20 |
| Spinach | Sow outdoors (fall) | Aug 22 – Sep 26 |
| Radishes | Sow outdoors (spring) | Feb 11 – Apr 3 |
| Radishes | Sow outdoors (fall) | Aug 5 – Oct 6 |
| Kale | Sow outdoors (spring) | Feb 28 – Mar 20 |
| Kale | Sow outdoors (fall) | Jul 29 – Sep 5 |
| Carrots | Sow outdoors (spring) | Mar 14 – Apr 29 |
| Carrots | Sow outdoors (fall) | Jul 6 – Aug 21 |
| Garlic | Plant outdoors (fall) | Nov 5 – Dec 6 |
Where these dates come from
ZIP code 30442 is matched to the NOAA station Rocky Ford 4Se, GA, 24.8 km away, at 160 ft elevation (16 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Rocky Ford 4Se, GA (used) | 160 ft | Mar 14 | Nov 15 |
| Midville Exp Stn, GA | 280 ft | Mar 18 | Nov 11 |
| Waynesboro 2 S, GA | 277 ft | Mar 21 | Nov 9 |
| Metter, GA | 120 ft | Mar 2 | Nov 27 |
Frost dates near Millen
- Perkins, GA 30822 · last Mar 21, first Nov 9
- Rocky Ford, GA 30455 · last Mar 14, first Nov 15
- Garfield, GA 30425 · last Mar 18, first Nov 11
- Midville, GA 30441 · last Mar 18, first Nov 11
- Portal, GA 30450 · last Mar 14, first Nov 15
- Sardis, GA 30456 · last Mar 21, first Nov 9
- Twin City, GA 30471 · last Mar 18, first Nov 11
- Sylvania, GA 30467 · last Mar 14, first Nov 15
Frequently asked questions
- When is the last frost in Millen, GA?
- For ZIP code 30442, the average last spring frost (32°F) is March 14, based on NOAA 1991-2020 climate normals for the Rocky Ford 4Se, GA weather station. There is a 1-in-10 chance of a frost after April 5.
- When is the first frost in Millen, GA?
- The average first fall frost (32°F) is November 15. There is a 1-in-10 chance of frost by November 1, so tender plants are at risk from that point on.
- How long is the growing season in 30442?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 248 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.