Frost dates 2026–2027

Frost dates for Exeter, California

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Lindsay, 8.1 mi away (close match).

Last spring frostFeb 20
First fall frostNov 30
284 frost-free days
Last spring frostFeb 201 year in 10 after Mar 26
First fall frostNov 301 year in 10 by Nov 15
Growing season284 daysbetween median 32°F dates
Hardiness zoneZone 9b25 to 30°F average extreme low

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Will it freeze in Exeter in the next 7 nights?

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

Tonight: forecast low 48°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 Exeter

The median first fall hard-freeze date (28°F) is December 14, from NOAA’s 1991–2020 Climate Normals at Lindsay. 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 24 · Mar 31 · Apr 26 Oct 27 · Nov 15 · Nov 30 230 days
32°F freeze Jan 20 · Feb 20 · Mar 26 Nov 15 · Nov 30 · Dec 21 284 days
28°F hard freeze Dec 25 · Jan 20 · Feb 18 Nov 28 · Dec 14 · Jan 17 334 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00044957. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Lindsay

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 Exeter, CA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Lindsay (station USC00044957, elevation 435 ft), 8.1 mi from Exeter. 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 Exeter

CityDistanceLast spring frostFirst fall frost
Farmersville, CA 3.7 mi Jan 23 Dec 13
Lindsay, CA 6.8 mi Feb 20 Nov 30
Woodlake, CA 8.7 mi Feb 5 Dec 8
Visalia, CA 11 mi Jan 23 Dec 13
Tulare, CA 12 mi Jan 23 Dec 13
Porterville, CA 17 mi Jan 20 Dec 13
Dinuba, CA 22 mi Jan 23 Dec 13
Orange Cove, CA 25 mi Jan 23 Dec 13
Reedley, CA 27 mi Jan 30 Dec 11
Corcoran, CA 27 mi Feb 15 Nov 27

Frequently asked questions

When is the last frost in Exeter?

On average, the last spring frost (32°F) in Exeter is around February 20. In about 1 year in 10 it comes after March 26, and in 9 years in 10 it comes after January 20.

When is the first frost in Exeter?

The first fall frost (32°F) usually arrives around November 30. There’s a 10% chance of a freeze by November 15 and a 90% chance by December 21.

Can it frost in Exeter 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 31.

What growing zone is Exeter?

Exeter 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 93223. See growing zones in California.

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