Frost dates 2026–2027

Frost dates for Placerville, California

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Placerville, 2.9 mi away (close match).

Last spring frostMar 31
First fall frostNov 21
237 frost-free days
Last spring frostMar 311 year in 10 after Apr 23
First fall frostNov 211 year in 10 by Nov 1
Growing season237 daysbetween median 32°F dates
Hardiness zoneZone 9b25 to 30°F average extreme low

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Will it freeze in Placerville in the next 7 nights?

No overnight lows at or below 32°F are forecast in Placerville 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 Placerville

The median first fall hard-freeze date (28°F) is December 5, from NOAA’s 1991–2020 Climate Normals at Placerville. 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 6 · Apr 23 · May 14 Oct 17 · Nov 6 · Nov 22 196 days
32°F freeze Feb 24 · Mar 31 · Apr 23 Nov 1 · Nov 21 · Dec 7 237 days
28°F hard freeze Jan 14 · Feb 15 · Mar 21 Nov 19 · Dec 5 · Jan 1 294 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00046960. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Placerville

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 Placerville, CA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Placerville (station USC00046960, elevation 1,850 ft), 2.9 mi from Placerville. 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 Placerville

CityDistanceLast spring frostFirst fall frost
Auburn, CA 19 mi Feb 25 Dec 5
Folsom, CA 19 mi Jan 12 Dec 16
Loomis, CA 22 mi Feb 25 Dec 5
Rocklin, CA 25 mi Feb 25 Dec 5
Rancho Cordova, CA 26 mi Jan 12 Dec 16
Jackson, CA 27 mi Mar 4 Dec 11
Citrus Heights, CA 27 mi Jan 12 Dec 16
Ione, CA 27 mi Mar 4 Dec 11
Roseville, CA 28 mi Feb 22 Nov 24
Lincoln, CA 29 mi Feb 25 Dec 5

Frequently asked questions

When is the last frost in Placerville?

On average, the last spring frost (32°F) in Placerville is around March 31. In about 1 year in 10 it comes after April 23, and in 9 years in 10 it comes after February 24.

When is the first frost in Placerville?

The first fall frost (32°F) usually arrives around November 21. There’s a 10% chance of a freeze by November 1 and a 90% chance by December 7.

Can it frost in Placerville 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 23.

What growing zone is Placerville?

Placerville 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 95667. See growing zones in California.

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