Frost Report

All states North Dakota

Frost dates for Munich, ND

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 31

frost is over in 9 of 10 years

First fall frost

September 22

typical year

Growing season

128 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 Jul 28 – Aug 11
Lettuce – Apr 17 – May 8 Jul 28 – Aug 11
Radishes – Apr 17 – May 29 Aug 11 – 25
Onions – Apr 17 – May 1 –
Potatoes – Apr 24 – May 8 –
Carrots – Apr 24 – May 15 Jun 30 – Jul 14
Beets – Apr 17 – May 1 Jul 14 – 28
Kale Mar 6 – 20 Apr 17 – May 1 Jul 14 – 28
Broccoli Mar 6 – 20 May 1 – 15 Jul 14 – 28
Cabbage Feb 20 – Mar 6 Apr 17 – May 1 Jul 14 – 28
Garlic – – Aug 11 – Sep 1
Warm-season crops
Tomatoes Apr 5 – 19 May 31 – Jun 14 –
Peppers Mar 29 – Apr 12 Jun 7 – 21 –
Cucumbers – May 31 – Jun 21 –
Zucchini – May 31 – Jun 28 –
Pumpkins – May 31 – Jun 21 –
Green beans – May 31 – Jul 14 –
Sweet corn – May 31 – Jun 28 –
Basil Apr 26 – May 10 Jun 7 – 14 –

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 31May 15May 4
Fall frost before September 11September 22October 3

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 4 (May 17 in a late year), and the first one in fall around October 1.

Towns that use these dates

This is the nearest NOAA station with frost records for 11 towns.

Munich, Edmore, Adams, Starkweather, Brocket, Fairdale, Alsen, Nekoma, Hampden, Lawton, Calio

Where these dates come from

NOAA weather station EDMORE 4NW, ND US (USC00322525), 1991–2020 climate normals. It's the nearest station for 8 zip codes, all within 23 miles:

58210, 58229, 58330, 58338, 58345, 58352, 58355, 58377

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