Frost dates 2026–2027

Frost dates for Chickasha, Oklahoma

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Chickasha Experiment Station, 1.9 mi away (close match).

Last spring frostApr 4
First fall frostNov 1
211 frost-free days
Last spring frostApr 41 year in 10 after Apr 20
First fall frostNov 11 year in 10 by Oct 18
Growing season211 daysbetween median 32°F dates
Hardiness zoneZone 7b5 to 10°F average extreme low

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Will it freeze in Chickasha in the next 7 nights?

No overnight lows at or below 32°F are forecast in Chickasha 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.

No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.

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 Chickasha

The median first fall hard-freeze date (28°F) is November 8, from NOAA’s 1991–2020 Climate Normals at Chickasha Experiment Station. 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 Mar 31 · Apr 14 · Apr 28 Oct 9 · Oct 23 · Nov 6 192 days
32°F freeze Mar 20 · Apr 4 · Apr 20 Oct 18 · Nov 1 · Nov 15 211 days
28°F hard freeze Mar 4 · Mar 24 · Apr 8 Oct 25 · Nov 8 · Nov 26 232 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00341750. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Chickasha Experiment Station

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 Chickasha, OK come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Chickasha Experiment Station (station USC00341750, elevation 1,085 ft), 1.9 mi from Chickasha. 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 Chickasha

CityDistanceLast spring frostFirst fall frost
Anadarko, OK 17 mi Apr 8 Oct 30
Blanchard, OK 18 mi Apr 3 Nov 4
Tuttle, OK 22 mi Apr 4 Nov 2
Newcastle, OK 24 mi Mar 31 Nov 5
Mustang, OK 27 mi Apr 4 Nov 2
Purcell, OK 32 mi Apr 4 Nov 2
Noble, OK 33 mi Apr 3 Nov 3
Moore, OK 34 mi Mar 31 Nov 5
Yukon, OK 35 mi Apr 2 Nov 4
El Reno, OK 35 mi Apr 6 Oct 31

Frequently asked questions

When is the last frost in Chickasha?

On average, the last spring frost (32°F) in Chickasha is around April 4. In about 1 year in 10 it comes after April 20, and in 9 years in 10 it comes after March 20.

When is the first frost in Chickasha?

The first fall frost (32°F) usually arrives around November 1. There’s a 10% chance of a freeze by October 18 and a 90% chance by November 15.

Can it frost in Chickasha 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 14.

What growing zone is Chickasha?

Chickasha is in USDA Plant Hardiness Zone 7b (average annual extreme minimum temperature 5 to 10°F), based on the 2023 USDA map for ZIP code 73018. See growing zones in Oklahoma.

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