Frost Report

All states Vermont

Frost dates for Marshfield, VT

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 25

typical year

Safe to plant

June 7

frost is over in 9 of 10 years

First fall frost

September 22

typical year

Growing season

119 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 27 – May 11 –
Spinach – Apr 13 – May 4 Jul 28 – Aug 11
Lettuce – Apr 27 – May 18 Jul 28 – Aug 11
Radishes – Apr 27 – Jun 8 Aug 11 – 25
Onions – Apr 27 – May 11 –
Potatoes – May 4 – 18 –
Carrots – May 4 – 25 Jun 30 – Jul 14
Beets – Apr 27 – May 11 Jul 14 – 28
Kale Mar 16 – 30 Apr 27 – May 11 Jul 14 – 28
Broccoli Mar 16 – 30 May 11 – 25 Jul 14 – 28
Cabbage Mar 2 – 16 Apr 27 – May 11 Jul 14 – 28
Garlic – – Aug 11 – Sep 1
Warm-season crops
Tomatoes Apr 12 – 26 Jun 7 – 21 –
Peppers Apr 5 – 19 Jun 14 – 28 –
Cucumbers – Jun 7 – 28 –
Zucchini – Jun 7 – Jul 5 –
Pumpkins – Jun 7 – 28 –
Green beans – Jun 7 – Jul 14 –
Sweet corn – Jun 7 – Jul 5 –
Basil May 3 – 17 Jun 14 – 21 –

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 7May 25May 9
Fall frost before September 9September 22October 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 11 (May 27 in a late year), and the first one in fall around October 2.

Towns that use these dates

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

Marshfield

Where these dates come from

NOAA weather station PLAINFIELD, VT US (USC00436391), 1991–2020 climate normals. It's the nearest station for 7 zip codes, all within 11 miles:

05046, 05647, 05651, 05658, 05666, 05667, 05862

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