Grand County, Utah · Frost dates
Grand County frost dates.
First-frost, last-frost, and growing-season length for Grand County, Utah. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6b
32°F — light freeze
Last spring frost
- 10%
- 05-08
- 20%
- 05-03
- 50%
- 04-22
- 80%
- 04-12
- 90%
- 04-07
First fall frost
- 10%
- 10-06
- 20%
- 10-10
- 50%
- 10-20
- 80%
- 10-28
- 90%
- 11-01
28°F — killing freeze
Last spring freeze
- 10%
- 04-27
- 20%
- 04-21
- 50%
- 04-08
- 80%
- 03-29
- 90%
- 03-21
First fall freeze
- 10%
- 10-15
- 20%
- 10-20
- 50%
- 10-30
- 80%
- 11-06
- 90%
- 11-09
Growing season length (days, 28°F threshold)
- Short year
- 171
- Median
- 205
- Long year
- 233
Source NOAA station
MOAB CANYONLAND AP, UT US
18.0 mi · 30 yrs of record (1991–2020) · 4561 ft elev.
Data from MOAB CANYONLAND AP, UT US, 18 miles away with 30-year NOAA record (1991-2020).
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