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Will it freeze in Frankenmuth in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Sat, Nov 7: 29°F (Sat, Nov 7, 6:00 PM EST to Sun, Nov 8, 6:00 AM EST).
Tonight: forecast low 36°F. Frost possible.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
6 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 36°F Frost possible · Chance Light Rain
- Fri, Nov 6 33°F Frost possible · Chance Light Rain
- Sat, Nov 7 29°F Freeze · Mostly Clear
- Sun, Nov 8 31°F Freeze · Mostly Clear
- Mon, Nov 9 38°F Above 36°F · Mostly Clear
- Tue, Nov 10 32°F Freeze · Partly Cloudy
- Wed, Nov 11 32°F Freeze · Mostly Cloudy
Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.
Frost and freeze probabilities
Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.
These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.
Average first hard freeze in Frankenmuth
The median first fall hard-freeze date (28°F) is October 25, from NOAA’s 1991–2020 Climate Normals at Frankenmuth 1SE. This is the 50% probability date, not a forecast for this year.
| Temperature | Last spring date 90% · 50% · 10% chance of a later freeze | First fall date 10% · 50% · 90% chance of an earlier freeze | Season |
|---|---|---|---|
| 36°F frost possible | Apr 30 · May 16 · May 31 | Sep 17 · Oct 1 · Oct 13 | 139 days |
| 32°F freeze | Apr 19 · May 3 · May 20 | Sep 28 · Oct 12 · Oct 27 | 161 days |
| 28°F hard freeze | Apr 7 · Apr 22 · May 8 | Oct 9 · Oct 25 · Nov 8 | 185 days |
Average high temperature by month
1991–2020 normals at Frankenmuth 1SE
Average low temperature by month
Months with lows near or below freezing carry frost risk
Where these frost dates come from
The frost dates for Frankenmuth, MI come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Frankenmuth 1SE (station USC00202955, elevation 635 ft), 1.5 mi from Frankenmuth. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.
Frost dates near Frankenmuth
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Saginaw, MI | 12 mi | Apr 29 | Oct 21 |
| Bay City, MI | 19 mi | Apr 27 | Oct 20 |
| Flushing, MI | 19 mi | May 3 | Oct 13 |
| Flint, MI | 22 mi | May 3 | Oct 13 |
| Davison, MI | 24 mi | May 8 | Oct 5 |
| Burton, MI | 24 mi | May 8 | Oct 5 |
| Swartz Creek, MI | 25 mi | May 6 | Oct 10 |
| Grand Blanc, MI | 29 mi | May 1 | Oct 14 |
| Lapeer, MI | 29 mi | May 4 | Oct 14 |
| Midland, MI | 32 mi | Apr 29 | Oct 16 |
Frequently asked questions
When is the last frost in Frankenmuth?
On average, the last spring frost (32°F) in Frankenmuth is around May 3. In about 1 year in 10 it comes after May 20, and in 9 years in 10 it comes after April 19.
When is the first frost in Frankenmuth?
The first fall frost (32°F) usually arrives around October 12. There’s a 10% chance of a freeze by September 28 and a 90% chance by October 27.
Can it frost in Frankenmuth after the last frost date?
Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after May 16.
What growing zone is Frankenmuth?
Frankenmuth is in USDA Plant Hardiness Zone 6a (average annual extreme minimum temperature −10 to −5°F), based on the 2023 USDA map for ZIP code 48734. See growing zones in Michigan.
More: all Michigan frost dates · Michigan growing zones · frost vs. freeze