Frost Report

All states Oklahoma

Frost dates for Bristow, 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 9

typical year

Safe to plant

April 27

frost is over in 9 of 10 years

First fall frost

October 25

typical year

Growing season

196 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 12 – 26 –
Spinach – Feb 26 – Mar 19 Aug 30 – Sep 13
Lettuce – Mar 12 – Apr 2 Aug 30 – Sep 13
Radishes – Mar 12 – Apr 23 Sep 13 – 27
Onions – Mar 12 – 26 –
Potatoes – Mar 19 – Apr 2 –
Carrots – Mar 19 – Apr 9 Aug 2 – 16
Beets – Mar 12 – 26 Aug 16 – 30
Kale Jan 29 – Feb 12 Mar 12 – 26 Aug 16 – 30
Broccoli Jan 29 – Feb 12 Mar 26 – Apr 9 Aug 16 – 30
Cabbage Jan 15 – 29 Mar 12 – 26 Aug 16 – 30
Garlic – – Sep 13 – Oct 4
Warm-season crops
Tomatoes Mar 2 – 16 Apr 27 – May 11 –
Peppers Feb 23 – Mar 9 May 4 – 18 –
Cucumbers – Apr 27 – May 18 –
Zucchini – Apr 27 – May 25 –
Pumpkins – Apr 27 – May 18 –
Green beans – Apr 27 – Aug 16 –
Sweet corn – Apr 27 – May 25 –
Basil Mar 23 – Apr 6 May 4 – 11 –

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 27April 9March 24
Fall frost before October 10October 25November 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 March 28 (April 16 in a late year), and the first one in fall around November 2.

Towns that use these dates

This is the nearest NOAA station with frost records for 3 towns.

Bristow, Depew, Slick

Where these dates come from

NOAA weather station BRISTOW, OK US (USC00341144), 1991–2020 climate normals. It's the nearest station for 6 zip codes, all within 12 miles:

74010, 74028, 74039, 74046, 74068, 74071

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