Frost Dates for Union City, GA
In Union City, GA, the average last spring frost is around Mar 15 and the average first fall frost around Nov 20, for a growing season of about 252 days. For frost-tender plants, wait until Apr 4, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Atlanta Hartsfield Intl. Airport, GA weather station, 7 miles away, elevation 1,010 ft. Frost can come earlier in low spots and valleys and later near cities and large lakes.
Frost probability by date
Chance of a 32°F frost after the spring date, or before the fall date.
| Chance | Last spring frost | First fall frost |
|---|---|---|
| 10% | Apr 4 | Nov 4 |
| 20% | Mar 28 | Nov 8 |
| 30% | Mar 23 | Nov 13 |
| 40% | Mar 18 | Nov 16 |
| 50% | Mar 15 | Nov 20 |
| 60% | Mar 12 | Nov 23 |
| 70% | Mar 7 | Nov 28 |
| 80% | Mar 1 | Dec 2 |
| 90% | Feb 23 | Dec 10 |
Light frost vs. hard freeze
Average (50%) dates for each temperature. Tender plants are damaged at 36°F; most hardy crops survive until 28°F.
| Temperature | Last in spring | First in fall |
|---|---|---|
| Light frost (36°F) | Mar 29 | Nov 7 |
| Frost / freeze (32°F) | Mar 15 | Nov 20 |
| Hard freeze (28°F) | Feb 28 | Dec 5 |
Planting calendar for Union City
Transplant Mar 22 – Apr 5
Transplant Mar 29 – Apr 12
Transplant Mar 29 – Apr 12
Transplant Mar 22 – Apr 5
Sow or transplant Mar 22 – Apr 5
Sow or transplant Mar 22 – Apr 5
Sow or transplant Mar 29 – Apr 12
Sow or transplant Feb 15 – Mar 1
Fall sowing Sep 25 – Oct 23
Fall sowing Sep 25 – Oct 16
Fall sowing Sep 11 – Sep 25
Sow or transplant Feb 15 – Mar 1
Fall sowing Sep 11 – Oct 9
Transplant Mar 1 – Mar 15
Fall sowing Aug 28 – Sep 11
Transplant Feb 22 – Mar 8
Fall sowing Aug 28 – Sep 11
Fall sowing Aug 28 – Sep 11
Fall sowing Oct 9 – Oct 30
Fall sowing Sep 11 – Sep 25
Plant Feb 15 – Mar 1
Based on the average last frost (Mar 15) and first frost (Nov 20). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.