Frost dates 2026–2027

Frost dates for Roseville, California

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Sacramento Metro Airport, 15 mi away (close match).

Last spring frostFeb 22
First fall frostNov 24
277 frost-free days
Last spring frostFeb 221 year in 10 after Apr 1
First fall frostNov 241 year in 10 by Nov 9
Growing season277 daysbetween median 32°F dates
Hardiness zoneZone 9b25 to 30°F average extreme low

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Will it freeze in Roseville in the next 7 nights?

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

Tonight: forecast low 45°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 Roseville

The median first fall hard-freeze date (28°F) is December 10, from NOAA’s 1991–2020 Climate Normals at Sacramento Metro Airport. 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 Mar 2 · Apr 1 · Apr 22 Oct 24 · Nov 10 · Nov 25 224 days
32°F freeze Jan 10 · Feb 22 · Apr 1 Nov 9 · Nov 24 · Dec 21 277 days
28°F hard freeze Dec 17 · Jan 17 · Feb 19 Nov 21 · Dec 10 · Jan 18 335 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USW00093225. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Sacramento Metro 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 Roseville, CA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Sacramento Metro Airport (station USW00093225, elevation 23 ft), 15 mi from Roseville. 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 Roseville

CityDistanceLast spring frostFirst fall frost
Rocklin, CA 4.3 mi Feb 25 Dec 5
Citrus Heights, CA 5.6 mi Jan 12 Dec 16
Loomis, CA 7.5 mi Feb 25 Dec 5
Lincoln, CA 7.5 mi Feb 25 Dec 5
Folsom, CA 12 mi Jan 12 Dec 16
Rancho Cordova, CA 14 mi Jan 12 Dec 16
Auburn, CA 16 mi Feb 25 Dec 5
Sacramento, CA 16 mi Jan 12 Dec 16
West Sacramento, CA 19 mi Feb 2 Dec 2
Woodland, CA 24 mi Feb 7 Dec 5

Frequently asked questions

When is the last frost in Roseville?

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

When is the first frost in Roseville?

The first fall frost (32°F) usually arrives around November 24. There’s a 10% chance of a freeze by November 9 and a 90% chance by December 21.

Can it frost in Roseville 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 1.

What growing zone is Roseville?

Roseville 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 95678. See growing zones in California.

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