Frost Report

All states Oklahoma

Frost dates for Watonga, OK

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 14

typical year

Safe to plant

April 29

frost is over in 9 of 10 years

First fall frost

October 27

typical year

Growing season

194 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 17 – 31 –
Spinach – Mar 3 – 24 Sep 1 – 15
Lettuce – Mar 17 – Apr 7 Sep 1 – 15
Radishes – Mar 17 – Apr 28 Sep 15 – 29
Onions – Mar 17 – 31 –
Potatoes – Mar 24 – Apr 7 –
Carrots – Mar 24 – Apr 14 Aug 4 – 18
Beets – Mar 17 – 31 Aug 18 – Sep 1
Kale Feb 3 – 17 Mar 17 – 31 Aug 18 – Sep 1
Broccoli Feb 3 – 17 Mar 31 – Apr 14 Aug 18 – Sep 1
Cabbage Jan 20 – Feb 3 Mar 17 – 31 Aug 18 – Sep 1
Garlic – – Sep 15 – Oct 6
Warm-season crops
Tomatoes Mar 4 – 18 Apr 29 – May 13 –
Peppers Feb 25 – Mar 11 May 6 – 20 –
Cucumbers – Apr 29 – May 20 –
Zucchini – Apr 29 – May 27 –
Pumpkins – Apr 29 – May 20 –
Green beans – Apr 29 – Aug 18 –
Sweet corn – Apr 29 – May 27 –
Basil Mar 25 – Apr 8 May 6 – 13 –

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 April 29April 14March 30
Fall frost before October 11October 27November 8

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 3 (April 19 in a late year), and the first one in fall around November 4.

Towns that use these dates

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

Watonga, Hitchcock

Where these dates come from

NOAA weather station WATONGA, OK US (USC00349364), 1991–2020 climate normals. It's the nearest station for 3 zip codes, all within 12 miles:

73744, 73764, 73772

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