Frost Report

All states Pennsylvania

Frost dates for Central City, 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 4

typical year

Safe to plant

May 21

frost is over in 9 of 10 years

First fall frost

October 10

typical year

Growing season

158 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 6 – 20 –
Spinach – Mar 23 – Apr 13 Aug 15 – 29
Lettuce – Apr 6 – 27 Aug 15 – 29
Radishes – Apr 6 – May 18 Aug 29 – Sep 12
Onions – Apr 6 – 20 –
Potatoes – Apr 13 – 27 –
Carrots – Apr 13 – May 4 Jul 18 – Aug 1
Beets – Apr 6 – 20 Aug 1 – 15
Kale Feb 23 – Mar 9 Apr 6 – 20 Aug 1 – 15
Broccoli Feb 23 – Mar 9 Apr 20 – May 4 Aug 1 – 15
Cabbage Feb 9 – 23 Apr 6 – 20 Aug 1 – 15
Garlic – – Aug 29 – Sep 19
Warm-season crops
Tomatoes Mar 26 – Apr 9 May 21 – Jun 4 –
Peppers Mar 19 – Apr 2 May 28 – Jun 11 –
Cucumbers – May 21 – Jun 11 –
Zucchini – May 21 – Jun 18 –
Pumpkins – May 21 – Jun 11 –
Green beans – May 21 – Aug 1 –
Sweet corn – May 21 – Jun 18 –
Basil Apr 16 – 30 May 28 – Jun 4 –

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 21May 4April 19
Fall frost before September 28October 10October 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 April 21 (May 12 in a late year), and the first one in fall around October 22.

Towns that use these dates

This is the nearest NOAA station with frost records for 8 towns.

Central City, Indian Lake, Schellsburg, Manns Choice, Pleasantville, New Paris, Shanksville, New Baltimore

Where these dates come from

NOAA weather station SHAWNEE SP, PA US (USC00368011), 1991–2020 climate normals. It's the nearest station for 9 zip codes, all within 14 miles:

15521, 15534, 15539, 15550, 15554, 15559, 15560, 15924, 15926

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