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USDA Hardiness Zone 3b

Frost Dates for 56623 — Baudette, Minnesota

NOAA 1991–2020 normals from Baudette, MN (1,094 ft), 4 miles northwest.

Updated

In Baudette, the last spring frost (32°F) is around May 14 in half of years and has passed by May 28 in nine years out of ten. The first fall frost comes around September 26, as early as September 12 one year in ten, leaving a typical freeze-free season of 135 days (NOAA, Baudette, MN).

Last spring frost
May 14

50% probability

First fall frost
September 26

50% probability

Growing season
135 days

freeze-free, 50%

Hardiness zone
3b

-35 to -30°F (-37.2 to -34.4°C) coldest night

First snow
November 1

median, 1991–2020

Last snow
April 15

median, 1991–2020

Winters with snow
100%

20 of 20 observed

Snow per year
—

NOAA normal

Frost risk by date in Baudette

Half of springs at Baudette, MN see their last 32°F night by May 14; only one in ten is past it by April 30, and one in ten still has one after May 28. Planting tender crops after May 19 leaves a 30% risk of a frost on them, after May 23 20%, and after May 28 10%. The 14 days between the even-odds date and the one-in-ten date is narrower than at 37% of the 142 Minnesota stations behind this site's ZIP pages.

In fall the first 32°F night comes by September 26 in half of years, as early as September 12 one year in ten, and holds off past October 9 one year in ten. A hard freeze of 28°F follows 11 days later, around October 7; in spring the one-in-ten date for 28°F is May 19, 9 days before the 32°F one. The freeze-free season lasts 135 days in a typical year, shorter than at 87% of the 142 Minnesota stations; it reaches 153 days one year in ten and falls short of 116 one year in ten. On average 184 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 10 days longer, to about May 24, and return around September 17. Severe cold of 16°F or below comes every winter, usually between November 6 and April 6.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMay 10May 15May 18May 21May 24May 27May 30Jun 2Jun 5
32°FApr 30May 4May 7May 11May 14May 16May 19May 23May 28
28°FApr 18Apr 24Apr 28Apr 30May 3May 5May 9May 13May 19
24°FApr 9Apr 13Apr 17Apr 20Apr 24Apr 27Apr 30May 2May 8
20°FApr 2Apr 5Apr 8Apr 11Apr 14Apr 17Apr 21Apr 24Apr 28
16°FMar 24Mar 31Apr 2Apr 4Apr 6Apr 8Apr 11Apr 15Apr 20
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FSep 2Sep 8Sep 11Sep 14Sep 17Sep 19Sep 22Sep 25Sep 29
32°FSep 12Sep 16Sep 20Sep 24Sep 26Sep 29Oct 2Oct 5Oct 9
28°FSep 23Sep 27Oct 1Oct 5Oct 7Oct 10Oct 13Oct 17Oct 21
24°FOct 3Oct 8Oct 13Oct 16Oct 19Oct 22Oct 26Oct 31Nov 3
20°FOct 15Oct 22Oct 26Oct 29Nov 1Nov 2Nov 4Nov 7Nov 11
16°FOct 27Oct 31Nov 2Nov 4Nov 6Nov 8Nov 11Nov 15Nov 19

Freeze probabilities 1991–2020 at Baudette, MN, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.

Frost risk on any date in 56623 →Compare Baudette with another place →

Weather by month in Baudette

July is the warmest month at Baudette, MN, averaging 81°F by day and 57°F at night; January is the coldest at 17°F and -5°F. A freezing night is all but certain in every month from October to April (a 90% chance or more). From June to August the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 89% of years.

Warmth for growing adds up to 2,091 growing degree days a year (base 50°F), fewer than at 75% of the 142 Minnesota stations. 31% of them (658) have built up by the end of June, and July adds the most, 590. Precipitation totals 25.0 inches a year, most in June (4.2") and least in January (0.5"); May to September bring 72% of it.

Monthly normals 1991–2020 at Baudette, MN
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan17-50.5100%310
Feb24-20.5100%280
Mar37130.7100%291
Apr53291.3100%2030
May66423.289%5189
Jun76534.24%0438
Jul81573.70%0590
Aug79553.40%0533
Sep70463.663%2259
Oct54342.1100%1348
Nov37191.0100%272
Dec2340.8100%310

Monthly normals 1991–2020 at Baudette, MN (1,094 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.

Compared with the next station

The nearest other station, Warroad, MN, 39 miles northwest of Baudette, has a last frost 2 days later (May 16), a first frost 2 days earlier (September 24), a season 6 days shorter.

Frost dates for 56751 (Roseau) →

When it snows in Baudette, Minnesota

The first measurable snow (0.1 inch or more) in Baudette usually arrives around November 1, and the last of the season around April 15. Those are the middle dates across the winters of 1991–2020 at Baudette, MN, 3.5 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 29 days after the last snow.

Planting calendar for 56623

What to do and when, from the 50% frost dates for Baudette, Minnesota
WhenWhat to do
March 5 – March 19Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
March 19 – April 2Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
April 16 – April 30Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
May 14 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by July 4Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by September 12Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
September 26 onwardPlant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter.

The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.

Where these figures come from

ZIP 56623 is 4 miles from Baudette, MN, which stands at 1,094 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 56623 in zone 3b, the band where the coldest night of the year averaged -35 to -30°F (-37.2 to -34.4°C) over 1991–2020; a zone describes winter lows, not frost dates.

Frost dates across Minnesota →

Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.

Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.

Other zone 3b places in Minnesota