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Will it freeze in St. Anthony in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Fri, Nov 6: 30°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.
2 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 30°F Freeze · Partly Cloudy then Patchy Fog
- Sat, Nov 7 37°F Above 36°F · Mostly Clear
- Sun, Nov 8 39°F Above 36°F · Mostly Clear
- Mon, Nov 9 40°F Above 36°F · Mostly Clear
- Tue, Nov 10 37°F Above 36°F · Partly Cloudy
- Wed, Nov 11 38°F Above 36°F · 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 St. Anthony
The median first fall hard-freeze date (28°F) is October 21, from NOAA’s 1991–2020 Climate Normals at U Of Mn St Paul. 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 25 · May 7 · May 24 | Sep 18 · Sep 30 · Oct 14 | 144 days |
| 32°F freeze | Apr 14 · Apr 28 · May 14 | Sep 25 · Oct 8 · Oct 22 | 162 days |
| 28°F hard freeze | Apr 4 · Apr 18 · May 1 | Oct 3 · Oct 21 · Nov 4 | 184 days |
Average high temperature by month
1991–2020 normals at U Of Mn St Paul
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 St. Anthony, MN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: U Of Mn St Paul (station USC00218450, elevation 970 ft), 3.3 mi from St. Anthony. 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 St. Anthony
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Columbia Heights, MN | 1.9 mi | Apr 23 | Oct 16 |
| New Brighton, MN | 2.5 mi | Apr 28 | Oct 8 |
| Roseville, MN | 3.1 mi | Apr 28 | Oct 8 |
| Falcon Heights, MN | 3.7 mi | Apr 28 | Oct 8 |
| Arden Hills, MN | 3.7 mi | Apr 23 | Oct 20 |
| Fridley, MN | 4.3 mi | Apr 30 | Oct 8 |
| Shoreview, MN | 5.0 mi | Apr 23 | Oct 20 |
| Mounds View, MN | 5.6 mi | Apr 23 | Oct 20 |
| Minneapolis, MN | 5.6 mi | Apr 23 | Oct 16 |
| Brooklyn Center, MN | 5.6 mi | Apr 30 | Oct 8 |
Frequently asked questions
When is the last frost in St. Anthony?
On average, the last spring frost (32°F) in St. Anthony is around April 28. In about 1 year in 10 it comes after May 14, and in 9 years in 10 it comes after April 14.
When is the first frost in St. Anthony?
The first fall frost (32°F) usually arrives around October 8. There’s a 10% chance of a freeze by September 25 and a 90% chance by October 22.
Can it frost in St. Anthony 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 7.
What growing zone is St. Anthony?
St. Anthony 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 55418. See growing zones in Minnesota.
More: all Minnesota frost dates · Minnesota growing zones · frost vs. freeze