Frost Report

All states Massachusetts

Frost dates for Nantucket Mem, MA

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 13

typical year

Safe to plant

April 27

frost is over in 9 of 10 years

First fall frost

November 8

typical year

Growing season

208 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 – Mar 16 – 30 –
Spinach – Mar 2 – 23 Sep 13 – 27
Lettuce – Mar 16 – Apr 6 Sep 13 – 27
Radishes – Mar 16 – Apr 27 Sep 27 – Oct 11
Onions – Mar 16 – 30 –
Potatoes – Mar 23 – Apr 6 –
Carrots – Mar 23 – Apr 13 Aug 16 – 30
Beets – Mar 16 – 30 Aug 30 – Sep 13
Kale Feb 2 – 16 Mar 16 – 30 Aug 30 – Sep 13
Broccoli Feb 2 – 16 Mar 30 – Apr 13 Aug 30 – Sep 13
Cabbage Jan 19 – Feb 2 Mar 16 – 30 Aug 30 – Sep 13
Garlic – – Sep 27 – Oct 18
Warm-season crops
Tomatoes Mar 2 – 16 Apr 27 – May 11 –
Peppers Feb 23 – Mar 9 May 4 – 18 –
Cucumbers – Apr 27 – May 18 –
Zucchini – Apr 27 – May 25 –
Pumpkins – Apr 27 – May 18 –
Green beans – Apr 27 – Aug 30 –
Sweet corn – Apr 27 – May 25 –
Basil Mar 23 – Apr 6 May 4 – 11 –

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 April 27April 13April 2
Fall frost before October 25November 8November 23

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 March 31 (April 12 in a late year), and the first one in fall around November 23.

Where these dates come from

NOAA weather station NANTUCKET MEM AP, MA US (USW00014756), 1991–2020 climate normals. It's the nearest station for 3 zip codes, all within 4 miles:

02554, 02564, 02584

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