Frost Report

All states Wisconsin

Frost dates for Park Falls, WI

When the last spring frost and first fall frost usually come, and when to plant, from 30 years of NOAA weather records.

Last spring frost

May 15

typical year

Safe to plant

May 30

frost is over in 9 of 10 years

First fall frost

September 28

typical year

Growing season

134 days

frost-free, typical year

When to plant

Counted from this page's frost dates. Warm-season crops wait for the safe-to-plant date.

CropStart indoorsPlant outsideFall planting
Cool-season crops
Peas – Apr 17 – May 1 –
Spinach – Apr 3 – 24 Aug 3 – 17
Lettuce – Apr 17 – May 8 Aug 3 – 17
Radishes – Apr 17 – May 29 Aug 17 – 31
Onions – Apr 17 – May 1 –
Potatoes – Apr 24 – May 8 –
Carrots – Apr 24 – May 15 Jul 6 – 20
Beets – Apr 17 – May 1 Jul 20 – Aug 3
Kale Mar 6 – 20 Apr 17 – May 1 Jul 20 – Aug 3
Broccoli Mar 6 – 20 May 1 – 15 Jul 20 – Aug 3
Cabbage Feb 20 – Mar 6 Apr 17 – May 1 Jul 20 – Aug 3
Garlic – – Aug 17 – Sep 7
Warm-season crops
Tomatoes Apr 4 – 18 May 30 – Jun 13 –
Peppers Mar 28 – Apr 11 Jun 6 – 20 –
Cucumbers – May 30 – Jun 20 –
Zucchini – May 30 – Jun 27 –
Pumpkins – May 30 – Jun 20 –
Green beans – May 30 – Jul 20 –
Sweet corn – May 30 – Jun 27 –
Basil Apr 25 – May 9 Jun 6 – 13 –

Onions: from sets. Green beans: until 10 weeks before the first fall frost. Garlic: harvest next summer.

The year at a glance

Start indoors Plant outside Fall planting

The chance of frost, by date

1 year in 10Half of years9 years in 10
Spring frost after May 30May 15April 30
Fall frost before September 16September 28October 11

Frost here means 32°F or colder. Read across: in 1 year in 10, spring frost carries on past the first date, which is why that date is the safe-to-plant date.

Hard freeze (28°F)

A hard freeze kills most garden plants, even hardy ones. The last one in spring usually comes around May 3 (May 19 in a late year), and the first one in fall around October 7.

Towns that use these dates

This is the nearest NOAA station with frost records for 1 town.

Park Falls

Where these dates come from

NOAA weather station PARK FALLS DNR HQ, WI US (USC00476398), 1991–2020 climate normals. It's the nearest station for 3 zip codes, all within 13 miles:

54524, 54552, 54555

Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.