Last frost date in Port Huron, Michigan
April 19
Average last frost in spring. In an early year (1 in 10) it's over by April 7; in a late year (1 in 10) it comes after May 4.
November 3
Average first frost in fall. 1 year in 10 it comes by October 20.
Source: NOAA U.S. Climate Normals 1991–2020, station Port Huron (USC00206680), 1.5 miles from Port Huron, elevation 590 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 7 | Apr 19 | May 4 |
| First frost in fall | Oct 20 | Nov 3 | Nov 16 |
Frost-free days in an average year: 196
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 1 | Oct 22 |
| Frost (32°F) | Every year | Apr 19 | Nov 3 |
| Hard freeze (28°F) | Every year | Apr 7 | Nov 12 |
Nights at 32°F or colder in an average year: 122
What to plant now in Port Huron
- Corn saladSept 15 – Nov 1Now
- Upland cressSept 15 – Nov 1Now
- Rhubarb plantsNov 1 – Dec 1Soon
- Asparagus plantsNov 15 – Jan 1Soon
- Spring planting calendar for an average last frost around April 20 Port Huron: April 19
- Fall planting calendar for an average first frost around October 30 Port Huron: November 3
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in Michigan
- Sterling Heights 42 mi · last frost Apr 30
- St. Clair Shores 42 mi · last frost Apr 29
- Warren 46 mi · last frost Apr 21
- Troy 46 mi · last frost Apr 26
- Detroit 54 mi · last frost Apr 27
Updated