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When to plant in East Bethel, MN

USDA Zone 4b

Here are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for East Bethel, Minnesota — all computed from East Bethel's nearest NOAA weather station.

Zone 4b is cold — in East Bethel, most perennials must be fully hardy, and your frost dates set a tight window for tender annual vegetables.

Station · CEDAR · 6.3 km
Last spring frost
May 1
50% chance · 32°F
First fall frost
October 7
50% chance · 32°F
Growing season
159 days
frost-free
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Frost calendar for East BethelA year-band showing 32°F frost risk from January to December for East Bethel: last spring frost around May 1, first fall frost around October 7, about 159 frost-free days between.
Shaded months carry frost risk; the clear span is the average frost-free season.

The average first fall frost in East Bethel is now 6 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →

Frost probability

CEDAR · 1991–2020

The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are East Bethel’s own odds, recorded at CEDAR.

Frost-probability curves for East BethelProbability of the last spring frost and first fall frost by date at 32°F. The last spring frost is most likely around May 1 and the first fall frost around October 7, giving about 159 frost-free days.
Last spring frostFirst fall frostbold = 32°F · thin = 28°F / 36°F · dot = 50% date · band = 10–90% window
ThresholdSPRING 10%SPRING 50%SPRING 90%FALL 10%FALL 50%FALL 90%
36°FMay 30May 12Apr 28Sep 16Sep 28Oct 11
32°FMay 17May 1Apr 17Sep 23Oct 7Oct 22
28°FMay 3Apr 20Apr 7Oct 3Oct 19Nov 2

Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.

What to plant now

TODAY · JULY 19
Fall sowopen now
Broccoli
July 15July 29
Fall sowopen now
Cabbage
July 15July 29
Fall sowopen now
Carrot
July 15July 29
Fall sowopen now
Cauliflower
July 15July 29
Fall sowopen now
Napa Cabbage
July 15August 12
Fall sowin 10 days
Beet
July 29August 12
Fall sowin 10 days
Collards
July 29August 26
Fall sowin 10 days
Endive
July 29August 12
Fall sowin 10 days
Escarole
July 29August 12
Fall sowin 10 days
Fennel (Bulb)
July 29August 12
Fall sowin 10 days
Kale
July 29August 26
Fall sowin 10 days
Kohlrabi
July 29August 26
Fall sowin 10 days
Peas
July 29August 12
Fall sowin 10 days
Radicchio
July 29August 12
Fall sowin 10 days
Swiss Chard
July 29August 12
Fall sowin 10 days
Turnip
July 29August 26
Fall sowin 24 days
Arugula
August 12September 9
Fall sowin 24 days
Bok Choy
August 12August 26
Fall sowin 24 days
Chervil
August 12September 9
Fall sowin 24 days
Cilantro
August 12September 9
Fall sowin 24 days
Claytonia (Miner's Lettuce)
August 12September 9
Fall sowin 24 days
Corn Salad (Mâche)
August 12September 9
Fall sowin 24 days
Gai Lan (Chinese Broccoli)
August 12August 26
Fall sowin 24 days
Lettuce
August 12September 9
Fall sowin 24 days
Mizuna
August 12September 9
Fall sowin 24 days
Mustard Greens
August 12September 9
Fall sowin 24 days
Radish
August 12September 9
Fall sowin 24 days
Shungiku (Edible Chrysanthemum)
August 12August 26
Fall sowin 24 days
Spinach
August 12September 9
Fall sowin 24 days
Tatsoi
August 12September 9

Add these crops to your calendar (.ics) ↓

Full-year planting calendar

Start indoorsTransplantDirect sowFall sow

Each bar is the exact window to take a planting action in East Bethel, drawn to the day from the local frost dates. The dashed line is today.

Nearby weather stations

3 within 23 km · complete 32°F normals

When stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.

CEDAR
Primary
6 km · 277 m elevation
SPRING
May 1
FALL
Oct 7
ANDOVER 1N
13 km · 274 m elevation
SPRING
May 5
FALL
Oct 2
CAMBRIDGE
23 km · 294 m elevation
SPRING
May 2
FALL
Oct 4

East Bethel planting FAQ

When is the last spring frost in East Bethel, MN?

East Bethel's average last spring frost falls near May 1 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.

When is the first fall frost in East Bethel, MN?

Expect East Bethel's first fall frost near October 7 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.

What hardiness zone is East Bethel in?

East Bethel is in USDA hardiness zone 4b. In zone 4b, winters are cold — pick cold-hardy varieties and protect tender crops.

How long is the growing season in East Bethel?

There are roughly 159 frost-free days in East Bethel (a moderate growing season), running from the average last frost around May 1 to the first fall frost near October 7.

When should I plant tomatoes in East Bethel?

In East Bethel, start tomato seeds indoors around March 6–March 20, then transplant seedlings outdoors around May 8 once the danger of frost has passed.

Planting reminders

Never miss a window in East Bethel

An email when it’s time to start seeds, transplant, and sow — timed to East Bethel’s frost dates. Double opt-in, one-click unsubscribe, no spam.

Nearby cities

8 within reach

Frost dates recorded at CEDAR, 6 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.

Cite this page
BlissGarden. "When to Plant in East Bethel, MN — Frost Dates & Zone 4b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00211390. Retrieved from https://blissgarden.com/minnesota/east-bethel.
When to Plant in East Bethel, MN — Frost Dates & Zone 4b — BlissGarden