Frost Dates for Hobart, IN
In Hobart, IN, the average last spring frost is around Apr 22 and the average first fall frost around Oct 25, for a growing season of about 185 days. For frost-tender plants, wait until May 6, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Valparaiso Wtr Wks, IN weather station, 12 miles away, elevation 800 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% | May 6 | Oct 12 |
| 20% | May 1 | Oct 17 |
| 30% | Apr 28 | Oct 20 |
| 40% | Apr 24 | Oct 23 |
| 50% | Apr 22 | Oct 25 |
| 60% | Apr 18 | Oct 27 |
| 70% | Apr 15 | Oct 30 |
| 80% | Apr 12 | Nov 1 |
| 90% | Apr 7 | Nov 6 |
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) | May 4 | Oct 13 |
| Frost / freeze (32°F) | Apr 22 | Oct 25 |
| Hard freeze (28°F) | Apr 9 | Nov 5 |
Planting calendar for Hobart
Transplant Apr 29 – May 13
Transplant May 6 – May 20
Transplant May 6 – May 20
Transplant Apr 29 – May 13
Sow or transplant Apr 29 – May 13
Sow or transplant Apr 29 – May 13
Sow or transplant May 6 – May 20
Sow or transplant Mar 25 – Apr 8
Fall sowing Aug 30 – Sep 27
Fall sowing Aug 30 – Sep 20
Fall sowing Aug 16 – Aug 30
Sow or transplant Mar 25 – Apr 8
Fall sowing Aug 16 – Sep 13
Transplant Apr 8 – Apr 22
Fall sowing Aug 2 – Aug 16
Transplant Apr 1 – Apr 15
Fall sowing Aug 2 – Aug 16
Fall sowing Aug 2 – Aug 16
Fall sowing Sep 13 – Oct 4
Fall sowing Aug 16 – Aug 30
Plant Mar 25 – Apr 8
Based on the average last frost (Apr 22) and first frost (Oct 25). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.