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Will it freeze in St. Louis Park 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 then Patchy Fog
- Fri, Nov 6 30°F Freeze · Partly Cloudy then Patchy Fog
- Sat, Nov 7 38°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 38°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. Louis Park
The median first fall hard-freeze date (28°F) is October 22, from NOAA’s 1991–2020 Climate Normals at New Hope. 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 26 · May 8 · May 23 | Sep 19 · Oct 1 · Oct 14 | 145 days |
| 32°F freeze | Apr 15 · Apr 29 · May 12 | Sep 29 · Oct 12 · Oct 25 | 163 days |
| 28°F hard freeze | Apr 5 · Apr 19 · May 1 | Oct 8 · Oct 22 · Nov 4 | 185 days |
Average high temperature by month
1991–2020 normals at New Hope
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. Louis Park, MN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: New Hope (station USC00215838, elevation 910 ft), 4.3 mi from St. Louis Park. 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. Louis Park
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Hopkins, MN | 2.5 mi | Apr 29 | Oct 12 |
| Golden Valley, MN | 3.1 mi | Apr 29 | Oct 12 |
| Edina, MN | 3.7 mi | Apr 23 | Oct 18 |
| Minnetonka, MN | 4.3 mi | Apr 29 | Oct 12 |
| Minneapolis, MN | 5.0 mi | Apr 23 | Oct 16 |
| Robbinsdale, MN | 5.6 mi | Apr 29 | Oct 12 |
| New Hope, MN | 6.2 mi | Apr 29 | Oct 12 |
| Crystal, MN | 6.2 mi | Apr 30 | Oct 8 |
| Richfield, MN | 6.8 mi | Apr 23 | Oct 18 |
| Plymouth, MN | 6.8 mi | Apr 29 | Oct 12 |
Frequently asked questions
When is the last frost in St. Louis Park?
On average, the last spring frost (32°F) in St. Louis Park is around April 29. In about 1 year in 10 it comes after May 12, and in 9 years in 10 it comes after April 15.
When is the first frost in St. Louis Park?
The first fall frost (32°F) usually arrives around October 12. There’s a 10% chance of a freeze by September 29 and a 90% chance by October 25.
Can it frost in St. Louis Park 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 8.
What growing zone is St. Louis Park?
St. Louis Park 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 55426. See growing zones in Minnesota.
More: all Minnesota frost dates · Minnesota growing zones · UV index today in St. Louis Park · frost vs. freeze