Frost dates 2026–2027

Frost dates for McFarland, California

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Delano, 7.1 mi away (close match).

Last spring frostJan 31
First fall frostDec 8
309 frost-free days
Last spring frostJan 311 year in 10 after Mar 5
First fall frostDec 81 year in 10 by Nov 23
Growing season309 daysbetween median 32°F dates
Hardiness zoneZone 9b25 to 30°F average extreme low

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Will it freeze in McFarland in the next 7 nights?

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

The median first fall hard-freeze date (28°F) is December 19, from NOAA’s 1991–2020 Climate Normals at Delano. 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 6 · Mar 5 · Apr 4 Nov 10 · Nov 24 · Dec 8 261 days
32°F freeze Dec 30 · Jan 31 · Mar 5 Nov 23 · Dec 8 · Dec 30 309 days
28°F hard freeze Dec 13 · Dec 31 · Jan 30 Dec 3 · Dec 19 · Jan 9 354 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00042346. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Delano

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 McFarland, CA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Delano (station USC00042346, elevation 302 ft), 7.1 mi from McFarland. 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 McFarland

CityDistanceLast spring frostFirst fall frost
Delano, CA 6.8 mi Jan 31 Dec 8
Wasco, CA 9.3 mi Jan 31 Dec 5
Shafter, CA 13 mi Feb 20 Nov 23
Bakersfield, CA 24 mi Jan 31 Dec 8
Porterville, CA 30 mi Jan 20 Dec 13
Corcoran, CA 34 mi Feb 15 Nov 27
Tulare, CA 37 mi Jan 23 Dec 13
Lindsay, CA 39 mi Feb 20 Nov 30
Taft, CA 39 mi Jan 24 Dec 17
Arvin, CA 40 mi Jan 31 Dec 8

Frequently asked questions

When is the last frost in McFarland?

On average, the last spring frost (32°F) in McFarland is around January 31. In about 1 year in 10 it comes after March 5, and in 9 years in 10 it comes after December 30.

When is the first frost in McFarland?

The first fall frost (32°F) usually arrives around December 8. There’s a 10% chance of a freeze by November 23 and a 90% chance by December 30.

Can it frost in McFarland 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 5.

What growing zone is McFarland?

McFarland 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 93250. See growing zones in California.

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