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When to plant in Plover, WI

USDA Zone 4b

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

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

Station · STEVENS PT · 6.7 km
Last spring frost
May 4
50% chance · 32°F
First fall frost
October 7
50% chance · 32°F
Growing season
156 days
frost-free
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Frost calendar for PloverA year-band showing 32°F frost risk from January to December for Plover: last spring frost around May 4, first fall frost around October 7, about 156 frost-free days between.
Shaded months carry frost risk; the clear span is the average frost-free season.

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

Frost probability

STEVENS PT · 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 Plover’s own odds, recorded at STEVENS PT.

Frost-probability curves for PloverProbability of the last spring frost and first fall frost by date at 32°F. The last spring frost is most likely around May 4 and the first fall frost around October 7, giving about 156 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 29May 15Apr 30Sep 16Sep 28Oct 11
32°FMay 20May 4Apr 22Sep 24Oct 7Oct 22
28°FMay 11Apr 25Apr 10Oct 2Oct 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 Plover, drawn to the day from the local frost dates. The dashed line is today.

Nearby weather stations

3 within 26 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.

STEVENS PT
Primary
7 km · 329 m elevation
SPRING
May 4
FALL
Oct 7
WISCONSIN RAPIDS
23 km · 315 m elevation
SPRING
May 9
FALL
Sep 30
WISCONSIN RAPIDS ALEXANDER FLD
26 km · 311 m elevation
SPRING
May 8
FALL
Oct 1

Plover planting FAQ

When is the last spring frost in Plover, WI?

Plover's average last spring frost falls near May 4 — 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 Plover, WI?

The first fall frost in Plover typically arrives around October 7 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.

What hardiness zone is Plover in?

Plover 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 Plover?

There are roughly 156 frost-free days in Plover (a moderate growing season), running from the average last frost around May 4 to the first fall frost near October 7.

When should I plant tomatoes in Plover?

In Plover, start tomato seeds indoors around March 9–March 23, then transplant seedlings outdoors around May 11 once the danger of frost has passed.

Planting reminders

Never miss a window in Plover

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

Nearby cities

8 within reach

Frost dates recorded at STEVENS PT, 7 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 Plover, WI — Frost Dates & Zone 4b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00478171. Retrieved from https://blissgarden.com/wisconsin/plover.
When to Plant in Plover, WI — Frost Dates & Zone 4b — BlissGarden