Frost dates 2026–2027

Frost dates for McAlester, Oklahoma

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Mcalester Regional Airport, 3.1 mi away (close match).

Last spring frostMar 31
First fall frostNov 3
216 frost-free days
Last spring frostMar 311 year in 10 after Apr 18
First fall frostNov 31 year in 10 by Oct 20
Growing season216 daysbetween median 32°F dates
Hardiness zoneZone 7b5 to 10°F average extreme low

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Will it freeze in McAlester in the next 7 nights?

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

Tonight: forecast low 47°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 McAlester

The median first fall hard-freeze date (28°F) is November 13, from NOAA’s 1991–2020 Climate Normals at Mcalester Regional 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 Mar 27 · Apr 11 · Apr 29 Oct 12 · Oct 26 · Nov 7 196 days
32°F freeze Mar 11 · Mar 31 · Apr 18 Oct 20 · Nov 3 · Nov 19 216 days
28°F hard freeze Feb 26 · Mar 15 · Apr 5 Oct 28 · Nov 13 · Dec 2 242 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USW00093950. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Mcalester Regional 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 McAlester, OK come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Mcalester Regional Airport (station USW00093950, elevation 770 ft), 3.1 mi from McAlester. 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 McAlester

CityDistanceLast spring frostFirst fall frost
Holdenville, OK 37 mi Apr 6 Oct 31
Henryetta, OK 37 mi Apr 8 Oct 28
Okmulgee, OK 49 mi Apr 8 Oct 28
Ada, OK 52 mi Apr 2 Nov 4
Seminole, OK 54 mi Apr 5 Nov 1
Muskogee, OK 61 mi Apr 7 Oct 30
Hugo, OK 65 mi Mar 15 Nov 15
Sallisaw, OK 66 mi Mar 30 Nov 7
Poteau, OK 66 mi Apr 6 Nov 2
Tecumseh, OK 70 mi Mar 30 Nov 5

Frequently asked questions

When is the last frost in McAlester?

On average, the last spring frost (32°F) in McAlester is around March 31. In about 1 year in 10 it comes after April 18, and in 9 years in 10 it comes after March 11.

When is the first frost in McAlester?

The first fall frost (32°F) usually arrives around November 3. There’s a 10% chance of a freeze by October 20 and a 90% chance by November 19.

Can it frost in McAlester 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 11.

What growing zone is McAlester?

McAlester 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 74554. See growing zones in Oklahoma.

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