Frost dates 2026–2027

Frost dates for Tehachapi, California

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Tehachapi 4 SE, 3.2 mi away (close match).

Last spring frostApr 28
First fall frostOct 26
183 frost-free days
Last spring frostApr 281 year in 10 after May 21
First fall frostOct 261 year in 10 by Oct 4
Growing season183 daysbetween median 32°F dates
Hardiness zoneZone 8b15 to 20°F average extreme low

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Will it freeze in Tehachapi in the next 7 nights?

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

Tonight: forecast low 39°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 Tehachapi

The median first fall hard-freeze date (28°F) is November 16, from NOAA’s 1991–2020 Climate Normals at Tehachapi 4 SE. 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 27 · May 16 · Jun 5 Sep 26 · Oct 10 · Nov 1 149 days
32°F freeze Apr 11 · Apr 28 · May 21 Oct 4 · Oct 26 · Nov 17 183 days
28°F hard freeze Mar 14 · Apr 12 · Apr 30 Oct 22 · Nov 16 · Dec 5 218 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00048829. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Tehachapi 4 SE

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 Tehachapi, CA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Tehachapi 4 SE (station USC00048829, elevation 4,220 ft), 3.2 mi from Tehachapi. 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 Tehachapi

CityDistanceLast spring frostFirst fall frost
Arvin, CA 22 mi Jan 31 Dec 8
California City, CA 32 mi Mar 15 Nov 17
Lancaster, CA 35 mi Apr 3 Nov 1
Bakersfield, CA 37 mi Jan 31 Dec 8
Palmdale, CA 43 mi Mar 10 Nov 19
Shafter, CA 48 mi Feb 20 Nov 23
Santa Clarita, CA 50 mi rare rare
Taft, CA 55 mi Jan 24 Dec 17
Ridgecrest, CA 55 mi Mar 11 Nov 12
McFarland, CA 57 mi Jan 31 Dec 8

Frequently asked questions

When is the last frost in Tehachapi?

On average, the last spring frost (32°F) in Tehachapi is around April 28. In about 1 year in 10 it comes after May 21, and in 9 years in 10 it comes after April 11.

When is the first frost in Tehachapi?

The first fall frost (32°F) usually arrives around October 26. There’s a 10% chance of a freeze by October 4 and a 90% chance by November 17.

Can it frost in Tehachapi 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 May 16.

What growing zone is Tehachapi?

Tehachapi is in USDA Plant Hardiness Zone 8b (average annual extreme minimum temperature 15 to 20°F), based on the 2023 USDA map for ZIP code 93561. See growing zones in California.

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