Frost Report

All states West Virginia

Frost dates for Grafton, WV

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 26

typical year

Safe to plant

May 14

frost is over in 9 of 10 years

First fall frost

October 22

typical year

Growing season

178 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 29 – Apr 12 –
Spinach – Mar 15 – Apr 5 Aug 27 – Sep 10
Lettuce – Mar 29 – Apr 19 Aug 27 – Sep 10
Radishes – Mar 29 – May 10 Sep 10 – 24
Onions – Mar 29 – Apr 12 –
Potatoes – Apr 5 – 19 –
Carrots – Apr 5 – 26 Jul 30 – Aug 13
Beets – Mar 29 – Apr 12 Aug 13 – 27
Kale Feb 15 – Mar 1 Mar 29 – Apr 12 Aug 13 – 27
Broccoli Feb 15 – Mar 1 Apr 12 – 26 Aug 13 – 27
Cabbage Feb 1 – 15 Mar 29 – Apr 12 Aug 13 – 27
Garlic – – Sep 10 – Oct 1
Warm-season crops
Tomatoes Mar 19 – Apr 2 May 14 – 28 –
Peppers Mar 12 – 26 May 21 – Jun 4 –
Cucumbers – May 14 – Jun 4 –
Zucchini – May 14 – Jun 11 –
Pumpkins – May 14 – Jun 4 –
Green beans – May 14 – Aug 13 –
Sweet corn – May 14 – Jun 11 –
Basil Apr 9 – 23 May 21 – 28 –

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 14April 26April 12
Fall frost before October 10October 22November 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 April 12 (May 1 in a late year), and the first one in fall around November 1.

Towns that use these dates

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

Grafton

Where these dates come from

NOAA weather station TYGART DAM, WV US (USC00468986), 1991–2020 climate normals. It's the nearest station for 5 zip codes, all within 9 miles:

26349, 26354, 26405, 26435, 26440

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