Frost Report

All states Oregon

Frost dates for Lemolo Lake, 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

June 1

typical year

Safe to plant

June 21

frost is over in 9 of 10 years

First fall frost

September 23

typical year

Growing season

115 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 – May 4 – 18 –
Spinach – Apr 20 – May 11 Jul 29 – Aug 12
Lettuce – May 4 – 25 Jul 29 – Aug 12
Radishes – May 4 – Jun 15 Aug 12 – 26
Onions – May 4 – 18 –
Potatoes – May 11 – 25 –
Carrots – May 11 – Jun 1 Jul 1 – 15
Beets – May 4 – 18 Jul 15 – 29
Kale Mar 23 – Apr 6 May 4 – 18 Jul 15 – 29
Broccoli Mar 23 – Apr 6 May 18 – Jun 1 Jul 15 – 29
Cabbage Mar 9 – 23 May 4 – 18 Jul 15 – 29
Garlic – – Aug 12 – Sep 2
Warm-season crops
Tomatoes Apr 26 – May 10 Jun 21 – Jul 5 –
Peppers Apr 19 – May 3 Jun 28 – Jul 12 –
Cucumbers – Jun 21 – Jul 12 –
Zucchini – Jun 21 – Jul 19 –
Pumpkins Season usually too short. Try a quick variety or row covers.
Green beans – Jun 21 – Jul 15 –
Sweet corn – Jun 21 – Jul 19 –
Basil May 17 – 31 Jun 28 – Jul 5 –

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 June 21June 1May 7
Fall frost before August 31September 23October 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 May 3 (May 26 in a late year), and the first one in fall around October 17.

Where these dates come from

NOAA weather station LEMOLO LAKE 3 NNW, OR US (USC00354835), 1991–2020 climate normals. It's the nearest station for 2 zip codes, all within 26 miles:

97731, 97733

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