Frost dates 2026–2027

Frost dates for De Soto, Kansas

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Olathe Johnson County Airport, 9.2 mi away (close match).

Last spring frostApr 13
First fall frostOct 24
193 frost-free days
Last spring frostApr 131 year in 10 after Apr 29
First fall frostOct 241 year in 10 by Oct 10
Growing season193 daysbetween median 32°F dates
Hardiness zoneZone 6b−5 to 0°F average extreme low

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Will it freeze in De Soto in the next 7 nights?

No overnight lows at or below 32°F are forecast in De Soto during the next 7 nights in the available NWS frost forecast.

Tonight: forecast low 41°F. Above 36°F.

NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.

2 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.

Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.

Frost and freeze probabilities

Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.

These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.

Average first hard freeze in De Soto

The median first fall hard-freeze date (28°F) is November 2, from NOAA’s 1991–2020 Climate Normals at Olathe Johnson County Airport. This is the 50% probability date, not a forecast for this year.

TemperatureLast spring date
90% · 50% · 10% chance of a later freeze
First fall date
10% · 50% · 90% chance of an earlier freeze
Season
36°F frost possible Apr 9 · Apr 23 · May 6 Sep 30 · Oct 15 · Oct 27 173 days
32°F freeze Mar 30 · Apr 13 · Apr 29 Oct 10 · Oct 24 · Nov 4 193 days
28°F hard freeze Mar 16 · Apr 3 · Apr 19 Oct 20 · Nov 2 · Nov 18 214 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USW00093909. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Olathe Johnson County Airport

Average low temperature by month

Months with lows near or below freezing carry frost risk

Where these frost dates come from

The frost dates for De Soto, KS come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Olathe Johnson County Airport (station USW00093909, elevation 1,087 ft), 9.2 mi from De Soto. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.

Frost dates near De Soto

CityDistanceLast spring frostFirst fall frost
Eudora, KS 6.2 mi Apr 21 Oct 17
Olathe, KS 9.9 mi Apr 10 Oct 29
Gardner, KS 9.9 mi Apr 13 Oct 24
Lenexa, KS 9.9 mi Apr 10 Oct 29
Shawnee, KS 11 mi Apr 16 Oct 22
Bonner Springs, KS 11 mi Apr 16 Oct 22
Tonganoxie, KS 12 mi Apr 21 Oct 17
Basehor, KS 14 mi Apr 16 Oct 22
Lawrence, KS 15 mi Apr 12 Oct 28
Spring Hill, KS 16 mi Apr 13 Oct 24

Frequently asked questions

When is the last frost in De Soto?

On average, the last spring frost (32°F) in De Soto is around April 13. In about 1 year in 10 it comes after April 29, and in 9 years in 10 it comes after March 30.

When is the first frost in De Soto?

The first fall frost (32°F) usually arrives around October 24. There’s a 10% chance of a freeze by October 10 and a 90% chance by November 4.

Can it frost in De Soto after the last frost date?

Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after April 23.

What growing zone is De Soto?

De Soto is in USDA Plant Hardiness Zone 6b (average annual extreme minimum temperature −5 to 0°F), based on the 2023 USDA map for ZIP code 66018. See growing zones in Kansas.

More: all Kansas frost dates · Kansas growing zones · frost vs. freeze