Frost dates 2026–2027

Frost dates for Fresno, California

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Fresno Yosemite Intl Airport, 4.1 mi away (close match).

Last spring frostJan 14
First fall frostDec 14
337 frost-free days
Last spring frostJan 141 year in 10 after Feb 11
First fall frostDec 141 year in 10 by Nov 29
Growing season337 daysbetween median 32°F dates
Hardiness zoneZone 9b25 to 30°F average extreme low

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Will it freeze in Fresno in the next 7 nights?

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

Overnight: forecast low 49°F. Above 36°F.

NWS forecast period: Thu, Nov 5, 5:00 AM PST to Thu, Nov 5, 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 Fresno

Most years have no 28°F hard freeze at Fresno Yosemite Intl Airport, according to NOAA’s 1991–2020 Climate Normals. Check the short-term forecast above during cold snaps.

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 Jan 19 · Feb 15 · Mar 13 Nov 16 · Dec 1 · Dec 24 288 days
32°F freeze Dec 22 · Jan 14 · Feb 11 Nov 29 · Dec 14 · Jan 12 337 days
28°F hard freeze Dec 13 · Jan 1 · Jan 24 Dec 7 · Dec 24 · Jan 15 365 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USW00093193. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Fresno Yosemite Intl 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 Fresno, CA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Fresno Yosemite Intl Airport (station USW00093193, elevation 333 ft), 4.1 mi from Fresno. 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 Fresno

CityDistanceLast spring frostFirst fall frost
Clovis, CA 6.8 mi Jan 14 Dec 14
Fowler, CA 13 mi Jan 30 Dec 11
Sanger, CA 14 mi Jan 30 Dec 11
Kerman, CA 16 mi Feb 18 Nov 27
Selma, CA 17 mi Jan 30 Dec 11
Parlier, CA 18 mi Jan 30 Dec 11
Madera, CA 21 mi Feb 12 Nov 30
Kingsburg, CA 22 mi Feb 20 Nov 23
Reedley, CA 23 mi Jan 30 Dec 11
Dinuba, CA 27 mi Jan 23 Dec 13

Frequently asked questions

When is the last frost in Fresno?

On average, the last spring frost (32°F) in Fresno is around January 14. In about 1 year in 10 it comes after February 11, and in 9 years in 10 it comes after December 22.

When is the first frost in Fresno?

The first fall frost (32°F) usually arrives around December 14. There’s a 10% chance of a freeze by November 29 and a 90% chance by January 12.

Can it frost in Fresno 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 February 15.

What growing zone is Fresno?

Fresno is in USDA Plant Hardiness Zone 9b (average annual extreme minimum temperature 25 to 30°F), based on the 2023 USDA map for ZIP code 93704. See growing zones in California.

More: all California frost dates · California growing zones · UV index today in Fresno · frost vs. freeze