Frost Report

All states Missouri

Frost dates for Bolivar, MO

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

May 2

frost is over in 9 of 10 years

First fall frost

October 23

typical year

Growing season

188 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 Aug 28 – Sep 11
Lettuce – Mar 17 – Apr 7 Aug 28 – Sep 11
Radishes – Mar 17 – Apr 28 Sep 11 – 25
Onions – Mar 17 – 31 –
Potatoes – Mar 24 – Apr 7 –
Carrots – Mar 24 – Apr 14 Jul 31 – Aug 14
Beets – Mar 17 – 31 Aug 14 – 28
Kale Feb 3 – 17 Mar 17 – 31 Aug 14 – 28
Broccoli Feb 3 – 17 Mar 31 – Apr 14 Aug 14 – 28
Cabbage Jan 20 – Feb 3 Mar 17 – 31 Aug 14 – 28
Garlic – – Sep 11 – Oct 2
Warm-season crops
Tomatoes Mar 7 – 21 May 2 – 16 –
Peppers Feb 28 – Mar 14 May 9 – 23 –
Cucumbers – May 2 – 23 –
Zucchini – May 2 – 30 –
Pumpkins – May 2 – 23 –
Green beans – May 2 – Aug 14 –
Sweet corn – May 2 – 30 –
Basil Mar 28 – Apr 11 May 9 – 16 –

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 2April 14March 29
Fall frost before October 8October 23November 4

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 1 (April 18 in a late year), and the first one in fall around November 1.

Towns that use these dates

This is the nearest NOAA station with frost records for 5 towns.

Bolivar, Pleasant Hope, Fair Play, Morrisville, Aldrich

Where these dates come from

NOAA weather station BOLIVAR 1 NE, MO US (USC00230789), 1991–2020 climate normals. It's the nearest station for 7 zip codes, all within 15 miles:

65601, 65613, 65617, 65640, 65663, 65710, 65725

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