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Will it freeze in Waupaca in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Fri, Nov 6: 24°F (Fri, Nov 6, 6:00 PM CST to Sat, Nov 7, 6:00 AM CST).
Tonight: forecast low 33°F. Frost possible.
NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.
6 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 33°F Frost possible · Mostly Cloudy
- Fri, Nov 6 24°F Hard freeze · Mostly Clear
- Sat, Nov 7 31°F Freeze · Partly Cloudy
- Sun, Nov 8 32°F Freeze · Mostly Clear
- Mon, Nov 9 38°F Above 36°F · Mostly Clear
- Tue, Nov 10 34°F Frost possible · Partly Cloudy
- Wed, Nov 11 33°F Frost possible · Partly 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 Waupaca
The median first fall hard-freeze date (28°F) is October 17, from NOAA’s 1991–2020 Climate Normals at Waupaca. 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 4 · May 19 · May 31 | Sep 14 · Sep 27 · Oct 8 | 131 days |
| 32°F freeze | Apr 24 · May 8 · May 21 | Sep 23 · Oct 6 · Oct 18 | 151 days |
| 28°F hard freeze | Apr 12 · Apr 28 · May 11 | Oct 1 · Oct 17 · Oct 30 | 172 days |
Average high temperature by month
1991–2020 normals at Waupaca
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 Waupaca, WI come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Waupaca (station USC00478951, elevation 837 ft), 0.6 mi from Waupaca. 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 Waupaca
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| New London, WI | 17 mi | May 4 | Oct 6 |
| Plover, WI | 24 mi | May 4 | Oct 7 |
| Greenville, WI | 26 mi | May 4 | Oct 6 |
| Stevens Point, WI | 27 mi | May 4 | Oct 7 |
| Berlin, WI | 27 mi | May 1 | Oct 8 |
| Fox Crossing, WI | 30 mi | May 4 | Oct 6 |
| Neenah, WI | 32 mi | May 4 | Oct 6 |
| Menasha, WI | 33 mi | May 4 | Oct 6 |
| Oshkosh, WI | 34 mi | Apr 24 | Oct 20 |
| Appleton, WI | 34 mi | May 4 | Oct 6 |
Frequently asked questions
When is the last frost in Waupaca?
On average, the last spring frost (32°F) in Waupaca is around May 8. In about 1 year in 10 it comes after May 21, and in 9 years in 10 it comes after April 24.
When is the first frost in Waupaca?
The first fall frost (32°F) usually arrives around October 6. There’s a 10% chance of a freeze by September 23 and a 90% chance by October 18.
Can it frost in Waupaca 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 19.
What growing zone is Waupaca?
Waupaca 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 54981. See growing zones in Wisconsin.
More: all Wisconsin frost dates · Wisconsin growing zones · frost vs. freeze