Frost Dates for Bessemer, AL
In Bessemer, AL, the average last spring frost is around Mar 23 and the average first fall frost around Nov 10, for a growing season of about 231 days. For frost-tender plants, wait until Apr 11, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Bessemer 3 Wsw, AL weather station, 3 miles away, elevation 445 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 11 | Oct 27 |
| 20% | Apr 5 | Nov 1 |
| 30% | Mar 31 | Nov 3 |
| 40% | Mar 27 | Nov 6 |
| 50% | Mar 23 | Nov 10 |
| 60% | Mar 20 | Nov 13 |
| 70% | Mar 15 | Nov 17 |
| 80% | Mar 9 | Nov 21 |
| 90% | Mar 3 | Nov 28 |
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) | Apr 6 | Nov 1 |
| Frost / freeze (32°F) | Mar 23 | Nov 10 |
| Hard freeze (28°F) | Mar 9 | Nov 23 |
Planting calendar for Bessemer
Transplant Mar 30 – Apr 13
Transplant Apr 6 – Apr 20
Transplant Apr 6 – Apr 20
Transplant Mar 30 – Apr 13
Sow or transplant Mar 30 – Apr 13
Sow or transplant Mar 30 – Apr 13
Sow or transplant Apr 6 – Apr 20
Sow or transplant Feb 23 – Mar 9
Fall sowing Sep 15 – Oct 13
Fall sowing Sep 15 – Oct 6
Fall sowing Sep 1 – Sep 15
Sow or transplant Feb 23 – Mar 9
Fall sowing Sep 1 – Sep 29
Transplant Mar 9 – Mar 23
Fall sowing Aug 18 – Sep 1
Transplant Mar 2 – Mar 16
Fall sowing Aug 18 – Sep 1
Fall sowing Aug 18 – Sep 1
Fall sowing Sep 29 – Oct 20
Fall sowing Sep 1 – Sep 15
Plant Feb 23 – Mar 9
Based on the average last frost (Mar 23) and first frost (Nov 10). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.