Frost dates 2026–2027

Frost dates for New Prague, Minnesota

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Jordan 1SSW, 7.8 mi away (close match).

Last spring frostMay 2
First fall frostOct 5
153 frost-free days
Last spring frostMay 21 year in 10 after May 18
First fall frostOct 51 year in 10 by Sep 21
Growing season153 daysbetween median 32°F dates
Hardiness zoneZone 4b−25 to −20°F average extreme low

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Will it freeze in New Prague in the next 7 nights?

The earliest overnight low at or below 32°F in the available NWS frost forecast is Tonight: 31°F (Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST).

Tonight: forecast low 31°F. Freeze.

NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.

4 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 New Prague

The median first fall hard-freeze date (28°F) is October 16, from NOAA’s 1991–2020 Climate Normals at Jordan 1SSW. 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 29 · May 11 · May 25 Sep 14 · Sep 27 · Oct 10 137 days
32°F freeze Apr 17 · May 2 · May 18 Sep 21 · Oct 5 · Oct 19 153 days
28°F hard freeze Apr 7 · Apr 22 · May 7 Sep 29 · Oct 16 · Oct 30 174 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00214176. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Jordan 1SSW

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 New Prague, MN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Jordan 1SSW (station USC00214176, elevation 900 ft), 7.8 mi from New Prague. 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 New Prague

CityDistanceLast spring frostFirst fall frost
Jordan, MN 8.7 mi May 2 Oct 5
Lonsdale, MN 8.7 mi May 5 Oct 5
Belle Plaine, MN 11 mi May 2 Oct 5
Elko New Market, MN 12 mi Apr 27 Oct 10
Credit River, MN 14 mi Apr 27 Oct 10
Prior Lake, MN 14 mi Apr 23 Oct 14
Carver, MN 15 mi May 5 Oct 5
Shakopee, MN 16 mi Apr 23 Oct 14
Savage, MN 18 mi Apr 23 Oct 14
Lakeville, MN 18 mi Apr 27 Oct 10

Frequently asked questions

When is the last frost in New Prague?

On average, the last spring frost (32°F) in New Prague is around May 2. In about 1 year in 10 it comes after May 18, and in 9 years in 10 it comes after April 17.

When is the first frost in New Prague?

The first fall frost (32°F) usually arrives around October 5. There’s a 10% chance of a freeze by September 21 and a 90% chance by October 19.

Can it frost in New Prague 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 11.

What growing zone is New Prague?

New Prague 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 56071. See growing zones in Minnesota.

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