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Will it freeze in North St. Paul in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Tonight: 32°F (Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST).
Tonight: forecast low 32°F. Freeze.
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 32°F Freeze · Mostly Cloudy then Patchy Fog
- Fri, Nov 6 29°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 North St. Paul
The median first fall hard-freeze date (28°F) is October 24, from NOAA’s 1991–2020 Climate Normals at 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 23 · May 7 · May 21 | Sep 20 · Oct 3 · Oct 16 | 149 days |
| 32°F freeze | Apr 12 · Apr 26 · May 11 | Sep 27 · Oct 12 · Oct 25 | 166 days |
| 28°F hard freeze | Apr 2 · Apr 16 · Apr 30 | Oct 7 · Oct 24 · Nov 6 | 189 days |
Average high temperature by month
1991–2020 normals at 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 North St. Paul, MN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: St Paul (station USC00217377, elevation 900 ft), 4.8 mi from North St. Paul. 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 North St. Paul
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Maplewood, MN | 1.2 mi | Apr 23 | Oct 20 |
| Oakdale, MN | 2.5 mi | Apr 26 | Oct 12 |
| Mahtomedi, MN | 3.7 mi | Apr 30 | Oct 11 |
| White Bear Lake, MN | 3.7 mi | Apr 23 | Oct 20 |
| Little Canada, MN | 4.3 mi | Apr 23 | Oct 20 |
| Vadnais Heights, MN | 4.3 mi | Apr 23 | Oct 20 |
| Lake Elmo, MN | 5.0 mi | Apr 30 | Oct 11 |
| St. Paul, MN | 6.8 mi | Apr 24 | Oct 16 |
| Roseville, MN | 7.5 mi | Apr 28 | Oct 8 |
| North Oaks, MN | 8.1 mi | Apr 23 | Oct 20 |
Frequently asked questions
When is the last frost in North St. Paul?
On average, the last spring frost (32°F) in North St. Paul is around April 26. In about 1 year in 10 it comes after May 11, and in 9 years in 10 it comes after April 12.
When is the first frost in North St. Paul?
The first fall frost (32°F) usually arrives around October 12. There’s a 10% chance of a freeze by September 27 and a 90% chance by October 25.
Can it frost in North St. Paul 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 North St. Paul?
North St. Paul 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 55109. See growing zones in Minnesota.
More: all Minnesota frost dates · Minnesota growing zones · frost vs. freeze