Frost Report

All states Oregon

Frost dates for Oakridge, 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

April 24

typical year

Safe to plant

May 11

frost is over in 9 of 10 years

First fall frost

October 24

typical year

Growing season

183 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 27 – Apr 10 –
Spinach – Mar 13 – Apr 3 Aug 29 – Sep 12
Lettuce – Mar 27 – Apr 17 Aug 29 – Sep 12
Radishes – Mar 27 – May 8 Sep 12 – 26
Onions – Mar 27 – Apr 10 –
Potatoes – Apr 3 – 17 –
Carrots – Apr 3 – 24 Aug 1 – 15
Beets – Mar 27 – Apr 10 Aug 15 – 29
Kale Feb 13 – 27 Mar 27 – Apr 10 Aug 15 – 29
Broccoli Feb 13 – 27 Apr 10 – 24 Aug 15 – 29
Cabbage Jan 30 – Feb 13 Mar 27 – Apr 10 Aug 15 – 29
Garlic – – Sep 12 – Oct 3
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 15 –
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 24March 31
Fall frost before October 2October 24November 13

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 March 22 (April 18 in a late year), and the first one in fall around November 13.

Towns that use these dates

This is the nearest NOAA station with frost records for 2 towns.

Oakridge, Westfir

Where these dates come from

NOAA weather station OAKRIDGE FISH HATCHERY, OR US (USC00356213), 1991–2020 climate normals. It's the nearest station for 3 zip codes, all within 15 miles:

97434, 97463, 97492

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