Frost Report

All states Michigan

Frost dates for Suttons Bay, 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

April 30

typical year

Safe to plant

May 15

frost is over in 9 of 10 years

First fall frost

November 1

typical year

Growing season

182 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 2 – 16 –
Spinach – Mar 19 – Apr 9 Sep 6 – 20
Lettuce – Apr 2 – 23 Sep 6 – 20
Radishes – Apr 2 – May 14 Sep 20 – Oct 4
Onions – Apr 2 – 16 –
Potatoes – Apr 9 – 23 –
Carrots – Apr 9 – 30 Aug 9 – 23
Beets – Apr 2 – 16 Aug 23 – Sep 6
Kale Feb 19 – Mar 5 Apr 2 – 16 Aug 23 – Sep 6
Broccoli Feb 19 – Mar 5 Apr 16 – 30 Aug 23 – Sep 6
Cabbage Feb 5 – 19 Apr 2 – 16 Aug 23 – Sep 6
Garlic – – Sep 20 – Oct 11
Warm-season crops
Tomatoes Mar 20 – Apr 3 May 15 – 29 –
Peppers Mar 13 – 27 May 22 – Jun 5 –
Cucumbers – May 15 – Jun 5 –
Zucchini – May 15 – Jun 12 –
Pumpkins – May 15 – Jun 5 –
Green beans – May 15 – Aug 23 –
Sweet corn – May 15 – Jun 12 –
Basil Apr 10 – 24 May 22 – 29 –

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 15April 30April 16
Fall frost before October 16November 1November 14

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 18 (May 4 in a late year), and the first one in fall around November 12.

Towns that use these dates

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

Suttons Bay

Where these dates come from

NOAA weather station NW MICHIGAN RSCH FARM, MI US (USC00206012), 1991–2020 climate normals. It's the nearest station for 2 zip codes, all within 7 miles:

49653, 49682

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