Frost Report

All states Pennsylvania

Frost dates for Blairsville, PA

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 2

typical year

Safe to plant

May 18

frost is over in 9 of 10 years

First fall frost

October 14

typical year

Growing season

163 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 4 – 18 –
Spinach – Mar 21 – Apr 11 Aug 19 – Sep 2
Lettuce – Apr 4 – 25 Aug 19 – Sep 2
Radishes – Apr 4 – May 16 Sep 2 – 16
Onions – Apr 4 – 18 –
Potatoes – Apr 11 – 25 –
Carrots – Apr 11 – May 2 Jul 22 – Aug 5
Beets – Apr 4 – 18 Aug 5 – 19
Kale Feb 21 – Mar 7 Apr 4 – 18 Aug 5 – 19
Broccoli Feb 21 – Mar 7 Apr 18 – May 2 Aug 5 – 19
Cabbage Feb 7 – 21 Apr 4 – 18 Aug 5 – 19
Garlic – – Sep 2 – 23
Warm-season crops
Tomatoes Mar 23 – Apr 6 May 18 – Jun 1 –
Peppers Mar 16 – 30 May 25 – Jun 8 –
Cucumbers – May 18 – Jun 8 –
Zucchini – May 18 – Jun 15 –
Pumpkins – May 18 – Jun 8 –
Green beans – May 18 – Aug 5 –
Sweet corn – May 18 – Jun 15 –
Basil Apr 13 – 27 May 25 – Jun 1 –

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 18May 2April 18
Fall frost before October 2October 14October 27

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 22 (May 8 in a late year), and the first one in fall around October 25.

Towns that use these dates

This is the nearest NOAA station with frost records for 3 towns.

Blairsville, Saltsburg, New Alexandria

Where these dates come from

NOAA weather station LOYALHANNA LAKE, PA US (USC00365212), 1991–2020 climate normals. It's the nearest station for 15 zip codes, all within 13 miles:

15620, 15624, 15627, 15633, 15635, 15662, 15670, 15671, 15681, 15684, 15717, 15725, 15727, 15779, 15783

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