Frost dates 2026–2027

Frost dates for Farr West, Utah

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Ogden Sugar Factory, 4.8 mi away (close match).

Last spring frostApr 22
First fall frostOct 18
177 frost-free days
Last spring frostApr 221 year in 10 after May 9
First fall frostOct 181 year in 10 by Oct 1
Growing season177 daysbetween median 32°F dates
Hardiness zoneZone 6b−5 to 0°F average extreme low

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Will it freeze in Farr West in the next 7 nights?

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

Tonight: forecast low 37°F. Above 36°F.

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

1 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 Farr West

The median first fall hard-freeze date (28°F) is October 29, from NOAA’s 1991–2020 Climate Normals at Ogden Sugar Factory. 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 22 · May 7 · May 26 Sep 23 · Oct 6 · Oct 21 152 days
32°F freeze Apr 5 · Apr 22 · May 9 Oct 1 · Oct 18 · Nov 2 177 days
28°F hard freeze Mar 12 · Apr 3 · Apr 22 Oct 15 · Oct 29 · Nov 13 208 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00426414. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Ogden Sugar Factory

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 Farr West, UT come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Ogden Sugar Factory (station USC00426414, elevation 4,280 ft), 4.8 mi from Farr West. 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 Farr West

CityDistanceLast spring frostFirst fall frost
Pleasant View, UT 2.5 mi Apr 21 Oct 23
Harrisville, UT 2.5 mi Apr 21 Oct 23
Plain City, UT 3.1 mi Apr 22 Oct 18
North Ogden, UT 3.7 mi Apr 19 Oct 22
Ogden, UT 6.2 mi Apr 21 Oct 23
West Haven, UT 6.2 mi Apr 22 Oct 18
Riverdale, UT 8.7 mi Apr 22 Oct 22
Roy, UT 9.3 mi Apr 22 Oct 22
Washington Terrace, UT 9.3 mi Apr 22 Oct 22
South Ogden, UT 9.9 mi Apr 22 Oct 22

Frequently asked questions

When is the last frost in Farr West?

On average, the last spring frost (32°F) in Farr West is around April 22. In about 1 year in 10 it comes after May 9, and in 9 years in 10 it comes after April 5.

When is the first frost in Farr West?

The first fall frost (32°F) usually arrives around October 18. There’s a 10% chance of a freeze by October 1 and a 90% chance by November 2.

Can it frost in Farr West 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 7.

What growing zone is Farr West?

Farr West is in USDA Plant Hardiness Zone 6b (average annual extreme minimum temperature −5 to 0°F), based on the 2023 USDA map for ZIP code 84414. See growing zones in Utah.

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