Frost Report

All states Kansas

Frost dates for Newton, KS

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 27

frost is over in 9 of 10 years

First fall frost

October 25

typical year

Growing season

193 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 30 – Sep 13
Lettuce – Mar 17 – Apr 7 Aug 30 – Sep 13
Radishes – Mar 17 – Apr 28 Sep 13 – 27
Onions – Mar 17 – 31 –
Potatoes – Mar 24 – Apr 7 –
Carrots – Mar 24 – Apr 14 Aug 2 – 16
Beets – Mar 17 – 31 Aug 16 – 30
Kale Feb 3 – 17 Mar 17 – 31 Aug 16 – 30
Broccoli Feb 3 – 17 Mar 31 – Apr 14 Aug 16 – 30
Cabbage Jan 20 – Feb 3 Mar 17 – 31 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 14March 31
Fall frost before October 12October 25November 7

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 4 (April 20 in a late year), and the first one in fall around November 3.

Towns that use these dates

This is the nearest NOAA station with frost records for 10 towns.

Newton, Hesston, Halstead, North Newton, Sedgwick, Whitewater, Bentley, Goessel, Elbing, Walton

Where these dates come from

NOAA weather station NEWTON, KS US (USC00145744), 1991–2020 climate normals. It's the nearest station for 10 zip codes, all within 15 miles:

67016, 67041, 67053, 67056, 67062, 67114, 67117, 67135, 67151, 67154

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