Frost Report

All states Michigan

Frost dates for Marquette, MI

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 8

typical year

Safe to plant

May 23

frost is over in 9 of 10 years

First fall frost

October 21

typical year

Growing season

164 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 10 – 24 –
Spinach – Mar 27 – Apr 17 Aug 26 – Sep 9
Lettuce – Apr 10 – May 1 Aug 26 – Sep 9
Radishes – Apr 10 – May 22 Sep 9 – 23
Onions – Apr 10 – 24 –
Potatoes – Apr 17 – May 1 –
Carrots – Apr 17 – May 8 Jul 29 – Aug 12
Beets – Apr 10 – 24 Aug 12 – 26
Kale Feb 27 – Mar 13 Apr 10 – 24 Aug 12 – 26
Broccoli Feb 27 – Mar 13 Apr 24 – May 8 Aug 12 – 26
Cabbage Feb 13 – 27 Apr 10 – 24 Aug 12 – 26
Garlic – – Sep 9 – 30
Warm-season crops
Tomatoes Mar 28 – Apr 11 May 23 – Jun 6 –
Peppers Mar 21 – Apr 4 May 30 – Jun 13 –
Cucumbers – May 23 – Jun 13 –
Zucchini – May 23 – Jun 20 –
Pumpkins – May 23 – Jun 13 –
Green beans – May 23 – Aug 12 –
Sweet corn – May 23 – Jun 20 –
Basil Apr 18 – May 2 May 30 – Jun 6 –

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 23May 8April 26
Fall frost before October 6October 21November 5

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 April 27 (May 11 in a late year), and the first one in fall around November 2.

Towns that use these dates

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

Marquette

Where these dates come from

NOAA weather station MARQUETTE, MI US (USW00014838), 1991–2020 climate normals. It's the nearest station for 1 zip code, all within 4 miles:

49855

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