Frost Report

All states Oklahoma

Frost dates for Marshall, 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 11

typical year

Safe to plant

April 29

frost is over in 9 of 10 years

First fall frost

October 31

typical year

Growing season

201 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 14 – 28 –
Spinach – Feb 28 – Mar 21 Sep 5 – 19
Lettuce – Mar 14 – Apr 4 Sep 5 – 19
Radishes – Mar 14 – Apr 25 Sep 19 – Oct 3
Onions – Mar 14 – 28 –
Potatoes – Mar 21 – Apr 4 –
Carrots – Mar 21 – Apr 11 Aug 8 – 22
Beets – Mar 14 – 28 Aug 22 – Sep 5
Kale Jan 31 – Feb 14 Mar 14 – 28 Aug 22 – Sep 5
Broccoli Jan 31 – Feb 14 Mar 28 – Apr 11 Aug 22 – Sep 5
Cabbage Jan 17 – 31 Mar 14 – 28 Aug 22 – Sep 5
Garlic – – Sep 19 – Oct 10
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 22 –
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 11March 24
Fall frost before October 16October 31November 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 29 (April 15 in a late year), and the first one in fall around November 7.

Towns that use these dates

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

Marshall, Douglas

Where these dates come from

NOAA weather station MARSHALL 3SSE MESONET, OK US (USC00345590), 1991–2020 climate normals. It's the nearest station for 3 zip codes, all within 11 miles:

73028, 73056, 73733

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