Frost Report

All states Michigan

Frost dates for Empire, 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 22

typical year

Safe to plant

June 6

frost is over in 9 of 10 years

First fall frost

October 9

typical year

Growing season

140 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 24 – May 8 –
Spinach – Apr 10 – May 1 Aug 14 – 28
Lettuce – Apr 24 – May 15 Aug 14 – 28
Radishes – Apr 24 – Jun 5 Aug 28 – Sep 11
Onions – Apr 24 – May 8 –
Potatoes – May 1 – 15 –
Carrots – May 1 – 22 Jul 17 – 31
Beets – Apr 24 – May 8 Jul 31 – Aug 14
Kale Mar 13 – 27 Apr 24 – May 8 Jul 31 – Aug 14
Broccoli Mar 13 – 27 May 8 – 22 Jul 31 – Aug 14
Cabbage Feb 27 – Mar 13 Apr 24 – May 8 Jul 31 – Aug 14
Garlic – – Aug 28 – Sep 18
Warm-season crops
Tomatoes Apr 11 – 25 Jun 6 – 20 –
Peppers Apr 4 – 18 Jun 13 – 27 –
Cucumbers – Jun 6 – 27 –
Zucchini – Jun 6 – Jul 4 –
Pumpkins – Jun 6 – 27 –
Green beans – Jun 6 – Jul 31 –
Sweet corn – Jun 6 – Jul 4 –
Basil May 2 – 16 Jun 13 – 20 –

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 6May 22May 4
Fall frost before September 25October 9October 26

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 9 (May 26 in a late year), and the first one in fall around October 24.

Towns that use these dates

This is the nearest NOAA station with frost records for 2 towns.

Empire, Lake Ann

Where these dates come from

NOAA weather station MAPLE CITY 1E, MI US (USC00205097), 1991–2020 climate normals. It's the nearest station for 6 zip codes, all within 18 miles:

49621, 49630, 49636, 49650, 49654, 49664

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