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Will it freeze in Alexandria in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Tonight: 28°F (Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST).
Tonight: forecast low 28°F. Hard freeze.
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 28°F Hard freeze · Mostly Cloudy then Patchy Fog
- Fri, Nov 6 29°F Freeze · Partly Cloudy
- Sat, Nov 7 35°F Frost possible · Mostly Clear
- Sun, Nov 8 38°F Above 36°F · Partly Cloudy
- Mon, Nov 9 36°F Frost possible · Mostly Clear
- Tue, Nov 10 34°F Frost possible · Partly Cloudy
- Wed, Nov 11 36°F Frost possible · Mostly Clear
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 Alexandria
The median first fall hard-freeze date (28°F) is October 19, from NOAA’s 1991–2020 Climate Normals at Alexandria Municipal Airport. 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 11 · May 27 | Sep 18 · Sep 30 · Oct 12 | 140 days |
| 32°F freeze | Apr 18 · May 2 · May 15 | Sep 27 · Oct 8 · Oct 20 | 159 days |
| 28°F hard freeze | Apr 8 · Apr 21 · May 4 | Oct 5 · Oct 19 · Oct 31 | 178 days |
Average high temperature by month
1991–2020 normals at Alexandria Municipal Airport
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 Alexandria, MN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Alexandria Municipal Airport (station USW00014910, elevation 1,416 ft), 1.1 mi from Alexandria. 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 Alexandria
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Morris, MN | 32 mi | May 4 | Oct 1 |
| Fergus Falls, MN | 43 mi | May 4 | Oct 5 |
| Little Falls, MN | 50 mi | May 4 | Oct 5 |
| Willmar, MN | 55 mi | Apr 30 | Oct 7 |
| St. Joseph, MN | 56 mi | May 3 | Oct 7 |
| Sartell, MN | 59 mi | May 3 | Oct 7 |
| Waite Park, MN | 60 mi | May 3 | Oct 7 |
| Baxter, MN | 62 mi | May 8 | Sep 29 |
| Sauk Rapids, MN | 62 mi | May 7 | Sep 30 |
| St. Cloud, MN | 63 mi | May 7 | Sep 30 |
Frequently asked questions
When is the last frost in Alexandria?
On average, the last spring frost (32°F) in Alexandria is around May 2. In about 1 year in 10 it comes after May 15, and in 9 years in 10 it comes after April 18.
When is the first frost in Alexandria?
The first fall frost (32°F) usually arrives around October 8. There’s a 10% chance of a freeze by September 27 and a 90% chance by October 20.
Can it frost in Alexandria 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 11.
What growing zone is Alexandria?
Alexandria is in USDA Plant Hardiness Zone 4b (average annual extreme minimum temperature −25 to −20°F), based on the 2023 USDA map for ZIP code 56308. See growing zones in Minnesota.
More: all Minnesota frost dates · Minnesota growing zones · frost vs. freeze