Garfield County, Utah · Frost dates

Garfield County frost dates.

First-frost, last-frost, and growing-season length for Garfield County, Utah. Sourced from NOAA 1991-2020 Climate Normals.

Data confidence: high · USDA zone: 6b

32°F — light freeze

Last spring frost

10%
05-25
20%
05-17
50%
05-04
80%
04-25
90%
04-20

First fall frost

10%
09-30
20%
10-04
50%
10-14
80%
10-23
90%
10-29

28°F — killing freeze

Last spring freeze

10%
05-12
20%
05-03
50%
04-23
80%
04-11
90%
04-05

First fall freeze

10%
10-07
20%
10-13
50%
10-23
80%
11-04
90%
11-09

Growing season length (days, 28°F threshold)

Short year
148
Median
183
Long year
218

Source NOAA station

BOULDER, UT US

5.3 mi · 30 yrs of record (19912020) · 6650 ft elev.

Data from BOULDER, UT US, 5.3 miles away with 30-year NOAA record (1991-2020).

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