Frost dates for 30620Bethlehem, GA
The average last spring frost in Bethlehem is April 3 and the average first fall frost is November 7, giving a typical growing season of about 219 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 3
- Average first fall frost
- Nov 7
- Growing season
- 219 days
Safer after Apr 17 (1-in-10 risk)
Possible by Oct 27 (1-in-10 risk)
First frost typically in 4 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 2 · Apr 15 · Apr 29 | Oct 17 · Oct 30 · Nov 10 | 196 days | 100% |
| Frost / freeze (32°F) | Mar 18 · Apr 3 · Apr 17 | Oct 27 · Nov 7 · Nov 26 | 219 days | 100% |
| Hard freeze (28°F) | Feb 28 · Mar 22 · Apr 6 | Nov 3 · Nov 20 · Dec 9 | 246 days | 100% |
Planting calendar for Bethlehem
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 3 – May 9 |
| Tomatoes | Transplant outdoors | Apr 19 – Jul 18 |
| Peppers | Start seeds indoors | Mar 3 – Apr 3 |
| Peppers | Transplant outdoors | May 3 – Jun 3 |
| Eggplant | Start seeds indoors | Mar 20 – Apr 18 |
| Eggplant | Transplant outdoors | May 3 – Jun 3 |
| Cucumbers | Sow outdoors | May 3 – Jul 28 |
| Summer squash | Sow outdoors | Apr 19 – Jun 3 |
| Winter squash & pumpkins | Sow outdoors | May 3 – Jun 3 |
| Snap beans | Sow outdoors | Apr 19 – Aug 20 |
| Sweet corn | Sow outdoors | Apr 19 – Jul 18 |
| Watermelon & cantaloupe | Sow outdoors | May 3 – Jun 3 |
| Okra | Sow outdoors | Apr 26 – May 19 |
| Peas | Sow outdoors (spring) | Mar 3 – Apr 18 |
| Potatoes | Plant outdoors (spring) | Mar 3 – May 3 |
| Onions | Start seeds indoors (spring) | Jan 20 – Feb 16 |
| Onions | Transplant outdoors (spring) | Mar 20 – Apr 18 |
| Broccoli | Start seeds indoors (spring) | Feb 13 – Mar 19 |
| Broccoli | Transplant outdoors (spring) | Mar 20 – Apr 18 |
| Broccoli | Start seeds indoors (fall) | Jul 8 – Jul 18 |
| Broccoli | Transplant outdoors (fall) | Aug 7 – Aug 18 |
| Cabbage | Start seeds indoors (spring) | Feb 3 – Mar 3 |
| Cabbage | Transplant outdoors (spring) | Mar 3 – Apr 3 |
| Cabbage | Start seeds indoors (fall) | Jun 28 – Jul 28 |
| Cabbage | Transplant outdoors (fall) | Jul 28 – Aug 28 |
| Leaf lettuce | Sow outdoors (spring) | Mar 3 – May 19 |
| Leaf lettuce | Sow outdoors (fall) | Jul 28 – Sep 13 |
| Spinach | Sow outdoors (spring) | Feb 24 – Apr 9 |
| Spinach | Sow outdoors (fall) | Aug 14 – Sep 18 |
| Radishes | Sow outdoors (spring) | Mar 3 – Apr 23 |
| Radishes | Sow outdoors (fall) | Jul 28 – Sep 28 |
| Kale | Sow outdoors (spring) | Mar 20 – Apr 9 |
| Kale | Sow outdoors (fall) | Jul 21 – Aug 28 |
| Carrots | Sow outdoors (spring) | Apr 3 – May 19 |
| Carrots | Sow outdoors (fall) | Jun 28 – Aug 13 |
| Garlic | Plant outdoors (fall) | Oct 28 – Nov 28 |
Where these dates come from
ZIP code 30620 is matched to the NOAA station Winder 4S, GA, 0.2 km away, at 889 ft elevation (16 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Winder 4S, GA (used) | 889 ft | Apr 3 | Nov 7 |
| U Of Ga Plt Sci, GA | 840 ft | Mar 27 | Nov 8 |
| Watkinsville 5 Sse, GA | 741 ft | Mar 24 | Nov 12 |
| Athens Ben Epps Ap, GA | 785 ft | Mar 23 | Nov 10 |
Frost dates near Bethlehem
- Winder, GA 30680 · last Apr 3, first Nov 7
- Monroe, GA 30656 · last Mar 27, first Nov 8
- Statham, GA 30666 · last Mar 27, first Nov 8
- Auburn, GA 30011 · last Apr 3, first Nov 7
- Dacula, GA 30019 · last Apr 3, first Nov 7
- Loganville, GA 30052 · last Apr 3, first Nov 7
- Hoschton, GA 30548 · last Mar 27, first Nov 8
- Bogart, GA 30622 · last Mar 27, first Nov 8
Frequently asked questions
- When is the last frost in Bethlehem, GA?
- For ZIP code 30620, the average last spring frost (32°F) is April 3, based on NOAA 1991-2020 climate normals for the Winder 4S, GA weather station. There is a 1-in-10 chance of a frost after April 17.
- When is the first frost in Bethlehem, GA?
- The average first fall frost (32°F) is November 7. There is a 1-in-10 chance of frost by October 27, so tender plants are at risk from that point on.
- How long is the growing season in 30620?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 219 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.