Millard County, Utah · Frost dates

Millard County frost dates.

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

Data confidence: high · USDA zone: 6b

32°F — light freeze

Last spring frost

10%
06-11
20%
06-05
50%
05-23
80%
05-10
90%
05-05

First fall frost

10%
09-14
20%
09-19
50%
09-27
80%
10-04
90%
10-09

28°F — killing freeze

Last spring freeze

10%
05-27
20%
05-19
50%
05-07
80%
04-28
90%
04-22

First fall freeze

10%
09-23
20%
09-27
50%
10-05
80%
10-16
90%
10-21

Growing season length (days, 28°F threshold)

Short year
119
Median
151
Long year
182

Source NOAA station

BLACK ROCK, UT US

19.7 mi · 30 yrs of record (19912020) · 4916 ft elev.

Data from BLACK ROCK, UT US, 19.7 miles away with 30-year NOAA record (1991-2020).

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