Frost dates 2026–2027

Frost dates for Kearns, Utah

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Salt Lake City Intl Airport, 8.9 mi away (close match).

Last spring frostApr 8
First fall frostOct 31
204 frost-free days
Last spring frostApr 81 year in 10 after Apr 30
First fall frostOct 311 year in 10 by Oct 17
Growing season204 daysbetween median 32°F dates
Hardiness zoneZone 7b5 to 10°F average extreme low

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Will it freeze in Kearns in the next 7 nights?

No overnight lows at or below 32°F are forecast in Kearns 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 MST to Fri, Nov 6, 6:00 AM MST.

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 Kearns

The median first fall hard-freeze date (28°F) is November 10, from NOAA’s 1991–2020 Climate Normals at Salt Lake City Intl 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 Apr 8 · Apr 27 · May 14 Oct 7 · Oct 19 · Nov 2 174 days
32°F freeze Mar 17 · Apr 8 · Apr 30 Oct 17 · Oct 31 · Nov 13 204 days
28°F hard freeze Feb 27 · Mar 15 · Apr 8 Oct 27 · Nov 10 · Nov 24 237 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USW00024127. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Salt Lake City Intl 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 Kearns, UT come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Salt Lake City Intl Airport (station USW00024127, elevation 4,225 ft), 8.9 mi from Kearns. 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 Kearns

CityDistanceLast spring frostFirst fall frost
West Valley City, UT 2.5 mi Apr 8 Oct 31
Taylorsville, UT 3.1 mi Mar 31 Nov 8
West Jordan, UT 3.7 mi Apr 18 Oct 22
Murray, UT 6.2 mi Apr 29 Oct 22
Midvale, UT 6.8 mi Apr 29 Oct 22
South Jordan, UT 6.8 mi Apr 18 Oct 22
South Salt Lake, UT 6.8 mi Mar 31 Nov 8
Salt Lake City, UT 9.3 mi Mar 31 Nov 8
Riverton, UT 9.3 mi Apr 18 Oct 22
White City, UT 9.3 mi Apr 29 Oct 22

Frequently asked questions

When is the last frost in Kearns?

On average, the last spring frost (32°F) in Kearns is around April 8. In about 1 year in 10 it comes after April 30, and in 9 years in 10 it comes after March 17.

When is the first frost in Kearns?

The first fall frost (32°F) usually arrives around October 31. There’s a 10% chance of a freeze by October 17 and a 90% chance by November 13.

Can it frost in Kearns 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 27.

What growing zone is Kearns?

Kearns is in USDA Plant Hardiness Zone 7b (average annual extreme minimum temperature 5 to 10°F), based on the 2023 USDA map for ZIP code 84118. See growing zones in Utah.

More: all Utah frost dates · Utah growing zones · UV index today in Kearns · frost vs. freeze