Frost Dates for Fond du Lac, WI
In Fond du Lac, WI, the average last spring frost is around Apr 27 and the average first fall frost around Oct 19, for a growing season of about 174 days. For frost-tender plants, wait until May 11, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Fond Du Lac 2 Sw, WI weather station, 1 mile away, elevation 772 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 11 | Oct 2 |
| 20% | May 5 | Oct 8 |
| 30% | May 2 | Oct 12 |
| 40% | Apr 30 | Oct 15 |
| 50% | Apr 27 | Oct 19 |
| 60% | Apr 23 | Oct 21 |
| 70% | Apr 21 | Oct 24 |
| 80% | Apr 17 | Oct 28 |
| 90% | Apr 13 | Nov 1 |
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 7 | Oct 6 |
| Frost / freeze (32°F) | Apr 27 | Oct 19 |
| Hard freeze (28°F) | Apr 15 | Oct 31 |
Planting calendar for Fond du Lac
Transplant May 4 – May 18
Transplant May 11 – May 25
Transplant May 11 – May 25
Transplant May 4 – May 18
Sow or transplant May 4 – May 18
Sow or transplant May 4 – May 18
Sow or transplant May 11 – May 25
Sow or transplant Mar 30 – Apr 13
Fall sowing Aug 24 – Sep 21
Fall sowing Aug 24 – Sep 14
Fall sowing Aug 10 – Aug 24
Sow or transplant Mar 30 – Apr 13
Fall sowing Aug 10 – Sep 7
Transplant Apr 13 – Apr 27
Fall sowing Jul 27 – Aug 10
Transplant Apr 6 – Apr 20
Fall sowing Jul 27 – Aug 10
Fall sowing Jul 27 – Aug 10
Fall sowing Sep 7 – Sep 28
Fall sowing Aug 10 – Aug 24
Plant Mar 30 – Apr 13
Based on the average last frost (Apr 27) and first frost (Oct 19). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.