Frost Report

All states Vermont

Frost dates for N Hartland Lake, 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 8

typical year

Safe to plant

May 22

frost is over in 9 of 10 years

First fall frost

October 6

typical year

Growing season

150 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 11 – 25
Lettuce – Apr 10 – May 1 Aug 11 – 25
Radishes – Apr 10 – May 22 Aug 25 – Sep 8
Onions – Apr 10 – 24 –
Potatoes – Apr 17 – May 1 –
Carrots – Apr 17 – May 8 Jul 14 – 28
Beets – Apr 10 – 24 Jul 28 – Aug 11
Kale Feb 27 – Mar 13 Apr 10 – 24 Jul 28 – Aug 11
Broccoli Feb 27 – Mar 13 Apr 24 – May 8 Jul 28 – Aug 11
Cabbage Feb 13 – 27 Apr 10 – 24 Jul 28 – Aug 11
Garlic – – Aug 25 – Sep 15
Warm-season crops
Tomatoes Mar 27 – Apr 10 May 22 – Jun 5 –
Peppers Mar 20 – Apr 3 May 29 – Jun 12 –
Cucumbers – May 22 – Jun 12 –
Zucchini – May 22 – Jun 19 –
Pumpkins – May 22 – Jun 12 –
Green beans – May 22 – Jul 28 –
Sweet corn – May 22 – Jun 19 –
Basil Apr 17 – May 1 May 29 – Jun 5 –

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 22May 8April 27
Fall frost before September 25October 6October 19

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 8 in a late year), and the first one in fall around October 17.

Where these dates come from

NOAA weather station N HARTLAND LAKE, VT US (USC00435768), 1991–2020 climate normals. It's the nearest station for 4 zip codes, all within 8 miles:

03781, 05048, 05052, 05089

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