Frost Dates for Germantown, TN
In Germantown, TN, the average last spring frost is around Mar 22 and the average first fall frost around Nov 7, for a growing season of about 230 days. For frost-tender plants, wait until Apr 9, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Germantown 4Se, TN weather station, 2 miles away, elevation 320 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 9 | Oct 26 |
| 20% | Apr 3 | Oct 30 |
| 30% | Mar 30 | Nov 2 |
| 40% | Mar 25 | Nov 4 |
| 50% | Mar 22 | Nov 7 |
| 60% | Mar 18 | Nov 10 |
| 70% | Mar 14 | Nov 13 |
| 80% | Mar 10 | Nov 17 |
| 90% | Mar 5 | Nov 23 |
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 4 | Oct 28 |
| Frost / freeze (32°F) | Mar 22 | Nov 7 |
| Hard freeze (28°F) | Mar 8 | Nov 18 |
Planting calendar for Germantown
Transplant Mar 29 – Apr 12
Transplant Apr 5 – Apr 19
Transplant Apr 5 – Apr 19
Transplant Mar 29 – Apr 12
Sow or transplant Mar 29 – Apr 12
Sow or transplant Mar 29 – Apr 12
Sow or transplant Apr 5 – Apr 19
Sow or transplant Feb 22 – Mar 8
Fall sowing Sep 12 – Oct 10
Fall sowing Sep 12 – Oct 3
Fall sowing Aug 29 – Sep 12
Sow or transplant Feb 22 – Mar 8
Fall sowing Aug 29 – Sep 26
Transplant Mar 8 – Mar 22
Fall sowing Aug 15 – Aug 29
Transplant Mar 1 – Mar 15
Fall sowing Aug 15 – Aug 29
Fall sowing Aug 15 – Aug 29
Fall sowing Sep 26 – Oct 17
Fall sowing Aug 29 – Sep 12
Plant Feb 22 – Mar 8
Based on the average last frost (Mar 22) and first frost (Nov 7). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.