Frost Report

All states Wisconsin

Frost dates for North Pelican, 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

June 3

typical year

Safe to plant

June 27

frost is over in 9 of 10 years

First fall frost

September 18

typical year

Growing season

106 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 – May 6 – 20 –
Spinach – Apr 22 – May 13 Jul 24 – Aug 7
Lettuce – May 6 – 27 Jul 24 – Aug 7
Radishes – May 6 – Jun 17 Aug 7 – 21
Onions – May 6 – 20 –
Potatoes Season usually too short. Try a quick variety or row covers.
Carrots – May 13 – Jun 3 Jun 26 – Jul 10
Beets – May 6 – 20 Jul 10 – 24
Kale Mar 25 – Apr 8 May 6 – 20 Jul 10 – 24
Broccoli Mar 25 – Apr 8 May 20 – Jun 3 Jul 10 – 24
Cabbage Mar 11 – 25 May 6 – 20 Jul 10 – 24
Garlic – – Aug 7 – 28
Warm-season crops
Tomatoes May 2 – 16 Jun 27 – Jul 11 –
Peppers Apr 25 – May 9 Jul 4 – 18 –
Cucumbers – Jun 27 – Jul 18 –
Zucchini – Jun 27 – Jul 25 –
Pumpkins Season usually too short. Try a quick variety or row covers.
Green beans – Jun 27 – Jul 10 –
Sweet corn Season usually too short. Try a quick variety or row covers.
Basil May 23 – Jun 6 Jul 4 – 11 –

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 June 27June 3May 20
Fall frost before September 1September 18October 4

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 19 (June 4 in a late year), and the first one in fall around October 1.

Where these dates come from

NOAA weather station NORTH PELICAN, WI US (USC00476122), 1991–2020 climate normals. It's the nearest station for 3 zip codes, all within 17 miles:

54428, 54463, 54485

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