Frost dates 2026–2027

Frost dates for Fernley, Nevada

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Lahontan Dam, 9.4 mi away (close match).

Last spring frostApr 18
First fall frostOct 25
188 frost-free days
Last spring frostApr 181 year in 10 after May 9
First fall frostOct 251 year in 10 by Oct 11
Growing season188 daysbetween median 32°F dates
Hardiness zoneZone 7a0 to 5°F average extreme low

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Will it freeze in Fernley in the next 7 nights?

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

Tonight: forecast low 34°F. Frost possible.

NWS forecast period: Thu, Nov 5, 6:00 PM PST to Fri, Nov 6, 6:00 AM PST.

2 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.

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 Fernley

The median first fall hard-freeze date (28°F) is November 4, from NOAA’s 1991–2020 Climate Normals at Lahontan Dam. 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 17 · May 3 · May 30 Oct 2 · Oct 14 · Oct 29 162 days
32°F freeze Apr 2 · Apr 18 · May 9 Oct 11 · Oct 25 · Nov 7 188 days
28°F hard freeze Mar 11 · Apr 2 · Apr 20 Oct 21 · Nov 4 · Nov 20 214 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00264349. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Lahontan Dam

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 Fernley, NV come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Lahontan Dam (station USC00264349, elevation 4,167 ft), 9.4 mi from Fernley. 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 Fernley

CityDistanceLast spring frostFirst fall frost
Fallon, NV 23 mi May 12 Oct 1
Sparks, NV 28 mi May 1 Oct 10
Reno, NV 35 mi Apr 28 Oct 27
Carson City, NV 41 mi May 4 Oct 6
Truckee, CA 55 mi Jun 9 Sep 25
South Lake Tahoe, CA 61 mi Jun 7 Sep 28
Susanville, CA 97 mi May 16 Oct 8
Grass Valley, CA 103 mi Apr 10 Nov 13
Placerville, CA 104 mi Mar 31 Nov 21
Auburn, CA 111 mi Feb 25 Dec 5

Frequently asked questions

When is the last frost in Fernley?

On average, the last spring frost (32°F) in Fernley is around April 18. In about 1 year in 10 it comes after May 9, and in 9 years in 10 it comes after April 2.

When is the first frost in Fernley?

The first fall frost (32°F) usually arrives around October 25. There’s a 10% chance of a freeze by October 11 and a 90% chance by November 7.

Can it frost in Fernley 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 3.

What growing zone is Fernley?

Fernley is in USDA Plant Hardiness Zone 7a (average annual extreme minimum temperature 0 to 5°F), based on the 2023 USDA map for ZIP code 89442. See growing zones in Nevada.

More: all Nevada frost dates · Nevada growing zones · UV index today in Fernley · frost vs. freeze