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Will it freeze in Ashland in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Tonight: 30°F (Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST).
Tonight: forecast low 30°F. Freeze.
NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.
7 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 30°F Freeze · Mostly Cloudy
- Fri, Nov 6 23°F Hard freeze · Partly Cloudy
- Sat, Nov 7 32°F Freeze · Partly Cloudy
- Sun, Nov 8 34°F Frost possible · Partly Cloudy
- Mon, Nov 9 36°F Frost possible · Mostly Clear
- Tue, Nov 10 32°F Freeze · Partly Cloudy
- Wed, Nov 11 33°F Frost possible · 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 Ashland
The median first fall hard-freeze date (28°F) is October 12, from NOAA’s 1991–2020 Climate Normals at Ashland 3S. 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 | May 21 · Jun 2 · Jun 16 | Sep 5 · Sep 22 · Oct 4 | 111 days |
| 32°F freeze | May 3 · May 20 · Jun 3 | Sep 19 · Oct 2 · Oct 15 | 133 days |
| 28°F hard freeze | Apr 22 · May 5 · May 21 | Sep 28 · Oct 12 · Oct 27 | 159 days |
Average high temperature by month
1991–2020 normals at Ashland 3S
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 Ashland, WI come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Ashland 3S (station USC00470347, elevation 826 ft), 2.9 mi from Ashland. 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 Ashland
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Superior, WI | 58 mi | May 6 | Oct 9 |
| Duluth, MN | 62 mi | May 14 | Oct 12 |
| Hermantown, MN | 66 mi | May 18 | Oct 1 |
| Cloquet, MN | 78 mi | May 26 | Sep 23 |
| Rice Lake, WI | 87 mi | May 8 | Oct 2 |
| Rhinelander, WI | 95 mi | May 26 | Sep 23 |
| Virginia, MN | 101 mi | May 12 | Oct 1 |
| Merrill, WI | 112 mi | May 11 | Sep 30 |
| Hibbing, MN | 113 mi | Jun 5 | Sep 8 |
| Houghton, MI | 115 mi | May 17 | Oct 1 |
Frequently asked questions
When is the last frost in Ashland?
On average, the last spring frost (32°F) in Ashland is around May 20. In about 1 year in 10 it comes after June 3, and in 9 years in 10 it comes after May 3.
When is the first frost in Ashland?
The first fall frost (32°F) usually arrives around October 2. There’s a 10% chance of a freeze by September 19 and a 90% chance by October 15.
Can it frost in Ashland 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 June 2.
What growing zone is Ashland?
Ashland is in USDA Plant Hardiness Zone 5a (average annual extreme minimum temperature −20 to −15°F), based on the 2023 USDA map for ZIP code 54806. See growing zones in Wisconsin.
More: all Wisconsin frost dates · Wisconsin growing zones · frost vs. freeze