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Will it freeze in St. Joseph in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Tonight: 29°F (Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST).
Tonight: forecast low 29°F. 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 29°F Freeze · Mostly Cloudy then Areas Of Fog
- Fri, Nov 6 28°F Hard freeze · Areas Of Fog
- Sat, Nov 7 34°F Frost possible · Mostly Clear
- Sun, Nov 8 37°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 · 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. Joseph
The median first fall hard-freeze date (28°F) is October 18, from NOAA’s 1991–2020 Climate Normals at Collegeville St John's. 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 13 · May 28 | Sep 17 · Sep 28 · Oct 10 | 138 days |
| 32°F freeze | Apr 21 · May 3 · May 17 | Sep 25 · Oct 7 · Oct 19 | 155 days |
| 28°F hard freeze | Apr 10 · Apr 24 · May 7 | Oct 4 · Oct 18 · Nov 1 | 176 days |
Average high temperature by month
1991–2020 normals at Collegeville St John's
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. Joseph, MN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Collegeville St John's (station USC00211691, elevation 1,210 ft), 4.5 mi from St. Joseph. 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. Joseph
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Waite Park, MN | 4.3 mi | May 3 | Oct 7 |
| Sartell, MN | 5.6 mi | May 3 | Oct 7 |
| St. Cloud, MN | 6.8 mi | May 7 | Sep 30 |
| Sauk Rapids, MN | 7.5 mi | May 7 | Sep 30 |
| Becker, MN | 24 mi | May 7 | Sep 28 |
| Little Falls, MN | 29 mi | May 4 | Oct 5 |
| Big Lake, MN | 31 mi | May 4 | Oct 5 |
| Monticello, MN | 31 mi | Apr 30 | Oct 9 |
| Litchfield, MN | 32 mi | May 6 | Oct 2 |
| Buffalo, MN | 34 mi | Apr 30 | Oct 9 |
Frequently asked questions
When is the last frost in St. Joseph?
On average, the last spring frost (32°F) in St. Joseph is around May 3. In about 1 year in 10 it comes after May 17, and in 9 years in 10 it comes after April 21.
When is the first frost in St. Joseph?
The first fall frost (32°F) usually arrives around October 7. There’s a 10% chance of a freeze by September 25 and a 90% chance by October 19.
Can it frost in St. Joseph 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 13.
What growing zone is St. Joseph?
St. Joseph 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 56374. See growing zones in Minnesota.
More: all Minnesota frost dates · Minnesota growing zones · frost vs. freeze