Frost Report

All states Washington

Frost dates for Tolt S Fk Rsvr, WA

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 13

typical year

Safe to plant

May 4

frost is over in 9 of 10 years

First fall frost

November 10

typical year

Growing season

210 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 16 – 30 –
Spinach – Mar 2 – 23 Sep 15 – 29
Lettuce – Mar 16 – Apr 6 Sep 15 – 29
Radishes – Mar 16 – Apr 27 Sep 29 – Oct 13
Onions – Mar 16 – 30 –
Potatoes – Mar 23 – Apr 6 –
Carrots – Mar 23 – Apr 13 Aug 18 – Sep 1
Beets – Mar 16 – 30 Sep 1 – 15
Kale Feb 2 – 16 Mar 16 – 30 Sep 1 – 15
Broccoli Feb 2 – 16 Mar 30 – Apr 13 Sep 1 – 15
Cabbage Jan 19 – Feb 2 Mar 16 – 30 Sep 1 – 15
Garlic – – Sep 29 – Oct 20
Warm-season crops
Tomatoes Mar 9 – 23 May 4 – 18 –
Peppers Mar 2 – 16 May 11 – 25 –
Cucumbers – May 4 – 25 –
Zucchini – May 4 – Jun 1 –
Pumpkins – May 4 – 25 –
Green beans – May 4 – Sep 1 –
Sweet corn – May 4 – Jun 1 –
Basil Mar 30 – Apr 13 May 11 – 18 –

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 4April 13March 23
Fall frost before October 24November 10November 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 March 14 (April 6 in a late year), and the first one in fall around November 28.

Where these dates come from

NOAA weather station TOLT S FK RSVR, WA US (USC00458508), 1991–2020 climate normals. It's the nearest station for 1 zip code, all within 7 miles:

98014

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