Frost dates 2026–2027

Frost dates for Corcoran, California

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Corcoran Irrig Dist, 1.5 mi away (close match).

Last spring frostFeb 15
First fall frostNov 27
285 frost-free days
Last spring frostFeb 151 year in 10 after Mar 10
First fall frostNov 271 year in 10 by Nov 12
Growing season285 daysbetween median 32°F dates
Hardiness zoneZone 9a20 to 25°F average extreme low

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Will it freeze in Corcoran in the next 7 nights?

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

Tonight: forecast low 46°F. Above 36°F.

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

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 Corcoran

The median first fall hard-freeze date (28°F) is December 8, from NOAA’s 1991–2020 Climate Normals at Corcoran Irrig Dist. 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 Feb 19 · Mar 20 · Apr 13 Oct 29 · Nov 12 · Nov 27 237 days
32°F freeze Jan 17 · Feb 15 · Mar 10 Nov 12 · Nov 27 · Dec 13 285 days
28°F hard freeze Dec 18 · Jan 16 · Feb 11 Nov 24 · Dec 8 · Jan 5 330 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00042012. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Corcoran Irrig Dist

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 Corcoran, CA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Corcoran Irrig Dist (station USC00042012, elevation 200 ft), 1.5 mi from Corcoran. 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 Corcoran

CityDistanceLast spring frostFirst fall frost
Tulare, CA 15 mi Jan 23 Dec 13
Hanford, CA 17 mi Feb 7 Dec 1
Lemoore, CA 20 mi Feb 24 Nov 22
Visalia, CA 21 mi Jan 23 Dec 13
Farmersville, CA 25 mi Jan 23 Dec 13
Exeter, CA 27 mi Feb 20 Nov 30
Lindsay, CA 27 mi Feb 20 Nov 30
Delano, CA 27 mi Jan 31 Dec 8
Porterville, CA 29 mi Jan 20 Dec 13
Kingsburg, CA 30 mi Feb 20 Nov 23

Frequently asked questions

When is the last frost in Corcoran?

On average, the last spring frost (32°F) in Corcoran is around February 15. In about 1 year in 10 it comes after March 10, and in 9 years in 10 it comes after January 17.

When is the first frost in Corcoran?

The first fall frost (32°F) usually arrives around November 27. There’s a 10% chance of a freeze by November 12 and a 90% chance by December 13.

Can it frost in Corcoran 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 March 20.

What growing zone is Corcoran?

Corcoran is in USDA Plant Hardiness Zone 9a (average annual extreme minimum temperature 20 to 25°F), based on the 2023 USDA map for ZIP code 93212. See growing zones in California.

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