Frost dates 2026–2027

Frost dates for El Reno, Oklahoma

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at El Reno 1 N, 0.6 mi away (close match).

Last spring frostApr 6
First fall frostOct 31
206 frost-free days
Last spring frostApr 61 year in 10 after Apr 22
First fall frostOct 311 year in 10 by Oct 15
Growing season206 daysbetween median 32°F dates
Hardiness zoneZone 7b5 to 10°F average extreme low

Checking current alerts… View NWS forecast and alerts.

Will it freeze in El Reno in the next 7 nights?

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

Tonight: forecast low 42°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 El Reno

The median first fall hard-freeze date (28°F) is November 7, from NOAA’s 1991–2020 Climate Normals at El Reno 1 N. 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 1 · Apr 17 · May 1 Oct 3 · Oct 21 · Nov 4 185 days
32°F freeze Mar 21 · Apr 6 · Apr 22 Oct 15 · Oct 31 · Nov 13 206 days
28°F hard freeze Mar 9 · Mar 26 · Apr 11 Oct 24 · Nov 7 · Nov 24 226 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00342818. How to read these probabilities.

Average high temperature by month

1991–2020 normals at El Reno 1 N

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 El Reno, OK come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: El Reno 1 N (station USC00342818, elevation 1,325 ft), 0.6 mi from El Reno. 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 El Reno

CityDistanceLast spring frostFirst fall frost
Yukon, OK 11 mi Apr 2 Nov 4
Piedmont, OK 15 mi Apr 2 Nov 4
Mustang, OK 17 mi Apr 4 Nov 2
Bethany, OK 18 mi Apr 2 Nov 4
Warr Acres, OK 19 mi Apr 2 Nov 4
Tuttle, OK 20 mi Apr 4 Nov 2
Kingfisher, OK 21 mi Apr 9 Nov 1
The Village, OK 23 mi Apr 2 Nov 4
Oklahoma City, OK 25 mi Apr 4 Nov 2
Newcastle, OK 29 mi Mar 31 Nov 5

Frequently asked questions

When is the last frost in El Reno?

On average, the last spring frost (32°F) in El Reno is around April 6. In about 1 year in 10 it comes after April 22, and in 9 years in 10 it comes after March 21.

When is the first frost in El Reno?

The first fall frost (32°F) usually arrives around October 31. There’s a 10% chance of a freeze by October 15 and a 90% chance by November 13.

Can it frost in El Reno 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 17.

What growing zone is El Reno?

El Reno 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 73036. See growing zones in Oklahoma.

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