Frost Report

All states Oregon

Frost dates for Brookings, OR

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

January 31

typical year

Safe to plant

March 20

frost is over in 9 of 10 years

First fall frost

December 27

typical year

Growing season

334 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 – Jan 3 – 17 –
Spinach – Dec 20 – Jan 10 Nov 1 – 15
Lettuce – Jan 3 – 24 Nov 1 – 15
Radishes – Jan 3 – Feb 14 Nov 15 – 29
Onions – Jan 3 – 17 –
Potatoes – Jan 10 – 24 –
Carrots – Jan 10 – 31 Oct 4 – 18
Beets – Jan 3 – 17 Oct 18 – Nov 1
Kale Nov 22 – Dec 6 Jan 3 – 17 Oct 18 – Nov 1
Broccoli Nov 22 – Dec 6 Jan 17 – 31 Oct 18 – Nov 1
Cabbage Nov 8 – 22 Jan 3 – 17 Oct 18 – Nov 1
Garlic – – Nov 15 – Dec 6
Warm-season crops
Tomatoes Jan 23 – Feb 6 Mar 20 – Apr 3 –
Peppers Jan 16 – 30 Mar 27 – Apr 10 –
Cucumbers – Mar 20 – Apr 10 –
Zucchini – Mar 20 – Apr 17 –
Pumpkins – Mar 20 – Apr 10 –
Green beans – Mar 20 – Oct 18 –
Sweet corn – Mar 20 – Apr 17 –
Basil Feb 13 – 27 Mar 27 – Apr 3 –

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 March 20January 31December 14
Fall frost before November 24December 27February 19

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 January 1 (February 18 in a late year), and the first one in fall around December 29.

Towns that use these dates

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

Brookings

Where these dates come from

NOAA weather station BROOKINGS 2 SE, OR US (USC00351055), 1991–2020 climate normals. It's the nearest station for 2 zip codes, all within 9 miles:

95567, 97415

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