Frost dates 2026–2027

Frost dates for Cedar City, Utah

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Cedar City, 1.4 mi away (close match).

Last spring frostMay 4
First fall frostOct 13
159 frost-free days
Last spring frostMay 41 year in 10 after May 28
First fall frostOct 131 year in 10 by Sep 30
Growing season159 daysbetween median 32°F dates
Hardiness zoneZone 6b−5 to 0°F average extreme low

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Will it freeze in Cedar City in the next 7 nights?

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

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 Cedar City

The median first fall hard-freeze date (28°F) is October 23, from NOAA’s 1991–2020 Climate Normals at Cedar City. 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 30 · May 20 · Jun 8 Sep 23 · Oct 4 · Oct 19 138 days
32°F freeze Apr 19 · May 4 · May 28 Sep 30 · Oct 13 · Oct 28 159 days
28°F hard freeze Apr 3 · Apr 22 · May 13 Oct 6 · Oct 23 · Nov 10 181 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00421259. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Cedar City

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 Cedar City, UT come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Cedar City (station USC00421259, elevation 6,090 ft), 1.4 mi from Cedar City. 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 Cedar City

CityDistanceLast spring frostFirst fall frost
Enoch, UT 6.2 mi May 21 Sep 29
Hurricane, UT 40 mi Apr 1 Nov 5
Washington, UT 44 mi Mar 14 Nov 10
Ivins, UT 48 mi Mar 14 Nov 10
Santa Clara, UT 49 mi Mar 14 Nov 10
St. George, UT 50 mi Mar 14 Nov 10
Kanab, UT 55 mi Apr 29 Oct 22
Mesquite, NV 83 mi Mar 16 Nov 13
Richfield, UT 92 mi May 21 Sep 24
Page, AZ 101 mi Mar 7 Nov 15

Frequently asked questions

When is the last frost in Cedar City?

On average, the last spring frost (32°F) in Cedar City is around May 4. In about 1 year in 10 it comes after May 28, and in 9 years in 10 it comes after April 19.

When is the first frost in Cedar City?

The first fall frost (32°F) usually arrives around October 13. There’s a 10% chance of a freeze by September 30 and a 90% chance by October 28.

Can it frost in Cedar City 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 20.

What growing zone is Cedar City?

Cedar City 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 84721. See growing zones in Utah.

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