Frost dates for 30040Cumming, GA
The average last spring frost in Cumming is April 4 and the average first fall frost is November 4, giving a typical growing season of about 214 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 4
- Average first fall frost
- Nov 4
- Growing season
- 214 days
Safer after Apr 19 (1-in-10 risk)
Possible by Oct 23 (1-in-10 risk)
First frost typically in 1 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) | Apr 1 · Apr 16 · Apr 30 | Oct 11 · Oct 25 · Nov 7 | 191 days | 100% |
| Frost / freeze (32°F) | Mar 16 · Apr 4 · Apr 19 | Oct 23 · Nov 4 · Nov 23 | 214 days | 100% |
| Hard freeze (28°F) | Feb 26 · Mar 20 · Apr 7 | Nov 1 · Nov 15 · Dec 5 | 243 days | 100% |
Planting calendar for Cumming
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 | Mar 4 – May 10 |
| Tomatoes | Transplant outdoors | Apr 20 – Jul 15 |
| Peppers | Start seeds indoors | Mar 4 – Apr 4 |
| Peppers | Transplant outdoors | May 4 – Jun 4 |
| Eggplant | Start seeds indoors | Mar 21 – Apr 19 |
| Eggplant | Transplant outdoors | May 4 – Jun 4 |
| Cucumbers | Sow outdoors | May 4 – Jul 25 |
| Summer squash | Sow outdoors | Apr 20 – Jun 4 |
| Winter squash & pumpkins | Sow outdoors | May 4 – Jun 4 |
| Snap beans | Sow outdoors | Apr 20 – Aug 17 |
| Sweet corn | Sow outdoors | Apr 20 – Jul 15 |
| Watermelon & cantaloupe | Sow outdoors | May 4 – Jun 4 |
| Okra | Sow outdoors | Apr 27 – May 20 |
| Peas | Sow outdoors (spring) | Mar 4 – Apr 19 |
| Potatoes | Plant outdoors (spring) | Mar 4 – May 4 |
| Onions | Start seeds indoors (spring) | Jan 21 – Feb 17 |
| Onions | Transplant outdoors (spring) | Mar 21 – Apr 19 |
| Broccoli | Start seeds indoors (spring) | Feb 14 – Mar 20 |
| Broccoli | Transplant outdoors (spring) | Mar 21 – Apr 19 |
| Broccoli | Start seeds indoors (fall) | Jul 5 – Jul 15 |
| Broccoli | Transplant outdoors (fall) | Aug 4 – Aug 15 |
| Cabbage | Start seeds indoors (spring) | Feb 4 – Mar 4 |
| Cabbage | Transplant outdoors (spring) | Mar 4 – Apr 4 |
| Cabbage | Start seeds indoors (fall) | Jun 25 – Jul 25 |
| Cabbage | Transplant outdoors (fall) | Jul 25 – Aug 25 |
| Leaf lettuce | Sow outdoors (spring) | Mar 4 – May 20 |
| Leaf lettuce | Sow outdoors (fall) | Jul 25 – Sep 10 |
| Spinach | Sow outdoors (spring) | Feb 25 – Apr 10 |
| Spinach | Sow outdoors (fall) | Aug 11 – Sep 15 |
| Radishes | Sow outdoors (spring) | Mar 4 – Apr 24 |
| Radishes | Sow outdoors (fall) | Jul 25 – Sep 25 |
| Kale | Sow outdoors (spring) | Mar 21 – Apr 10 |
| Kale | Sow outdoors (fall) | Jul 18 – Aug 25 |
| Carrots | Sow outdoors (spring) | Apr 4 – May 20 |
| Carrots | Sow outdoors (fall) | Jun 25 – Aug 10 |
| Garlic | Plant outdoors (fall) | Oct 25 – Nov 25 |
Where these dates come from
ZIP code 30040 is matched to the NOAA station Cumming 2N, GA, 2.8 km away, at 1,140 ft elevation (307 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Cumming 2N, GA (used) | 1,140 ft | Apr 4 | Nov 4 |
| Gainesville, GA | 1,170 ft | Mar 27 | Nov 12 |
| Gainesville Gilmer Ap, GA | 1,275 ft | Mar 20 | Nov 14 |
| Jasper 1 Nnw, GA | 1,465 ft | Mar 31 | Nov 5 |
Frost dates near Cumming
- Cumming, GA 30041 · last Apr 4, first Nov 4
- Alpharetta, GA 30005 · last Mar 25, first Nov 9
- Buford, GA 30518 · last Mar 27, first Nov 12
- Gainesville, GA 30503 · last Mar 27, first Nov 12
- Duluth, GA 30097 · last Mar 25, first Nov 9
- Ball Ground, GA 30107 · last Mar 31, first Nov 5
- Flowery Branch, GA 30542 · last Mar 20, first Nov 14
- Oakwood, GA 30566 · last Mar 20, first Nov 14
Frequently asked questions
- When is the last frost in Cumming, GA?
- For ZIP code 30040, the average last spring frost (32°F) is April 4, based on NOAA 1991-2020 climate normals for the Cumming 2N, GA weather station. There is a 1-in-10 chance of a frost after April 19.
- When is the first frost in Cumming, GA?
- The average first fall frost (32°F) is November 4. There is a 1-in-10 chance of frost by October 23, so tender plants are at risk from that point on.
- How long is the growing season in 30040?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 214 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.