Frost dates 2026–2027

Frost dates for Waite Park, Minnesota

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Collegeville St John's, 8.3 mi away (close match).

Last spring frostMay 3
First fall frostOct 7
155 frost-free days
Last spring frostMay 31 year in 10 after May 17
First fall frostOct 71 year in 10 by Sep 25
Growing season155 daysbetween median 32°F dates
Hardiness zoneZone 4b−25 to −20°F average extreme low

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Will it freeze in Waite Park 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.

5 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.

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 Waite Park

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.

TemperatureLast 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
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00211691. How to read these probabilities.

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 Waite Park, 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), 8.3 mi from Waite 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 Waite Park

CityDistanceLast spring frostFirst fall frost
St. Cloud, MN 3.7 mi May 7 Sep 30
St. Joseph, MN 4.3 mi May 3 Oct 7
Sauk Rapids, MN 6.8 mi May 7 Sep 30
Sartell, MN 6.8 mi May 3 Oct 7
Becker, MN 20 mi May 7 Sep 28
Monticello, MN 27 mi Apr 30 Oct 9
Big Lake, MN 27 mi May 4 Oct 5
Buffalo, MN 30 mi Apr 30 Oct 9
Litchfield, MN 31 mi May 6 Oct 2
Princeton, MN 32 mi May 7 Sep 28

Frequently asked questions

When is the last frost in Waite Park?

On average, the last spring frost (32°F) in Waite Park 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 Waite Park?

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 Waite 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 13.

What growing zone is Waite Park?

Waite Park 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 56387. See growing zones in Minnesota.

More: all Minnesota frost dates · Minnesota growing zones · frost vs. freeze