Frost Report

All states New York

Frost dates for Ogdensburg, NY

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 29

typical year

Safe to plant

May 11

frost is over in 9 of 10 years

First fall frost

October 10

typical year

Growing season

162 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 1 – 15 –
Spinach – Mar 18 – Apr 8 Aug 15 – 29
Lettuce – Apr 1 – 22 Aug 15 – 29
Radishes – Apr 1 – May 13 Aug 29 – Sep 12
Onions – Apr 1 – 15 –
Potatoes – Apr 8 – 22 –
Carrots – Apr 8 – 29 Jul 18 – Aug 1
Beets – Apr 1 – 15 Aug 1 – 15
Kale Feb 18 – Mar 4 Apr 1 – 15 Aug 1 – 15
Broccoli Feb 18 – Mar 4 Apr 15 – 29 Aug 1 – 15
Cabbage Feb 4 – 18 Apr 1 – 15 Aug 1 – 15
Garlic – – Aug 29 – Sep 19
Warm-season crops
Tomatoes Mar 16 – 30 May 11 – 25 –
Peppers Mar 9 – 23 May 18 – Jun 1 –
Cucumbers – May 11 – Jun 1 –
Zucchini – May 11 – Jun 8 –
Pumpkins – May 11 – Jun 1 –
Green beans – May 11 – Aug 1 –
Sweet corn – May 11 – Jun 8 –
Basil Apr 6 – 20 May 18 – 25 –

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 11April 29April 18
Fall frost before September 25October 10October 28

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 20 (May 1 in a late year), and the first one in fall around October 24.

Towns that use these dates

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

Ogdensburg, Waddington, Heuvelton

Where these dates come from

NOAA weather station OGDENSBURG 4 NE, NY US (USC00306164), 1991–2020 climate normals. It's the nearest station for 5 zip codes, all within 16 miles:

13654, 13658, 13664, 13669, 13694

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