Mineral County, Colorado · Frost dates
Mineral County frost dates.
First-frost, last-frost, and growing-season length for Mineral County, Colorado. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- —
- 20%
- —
- 50%
- —
- 80%
- —
- 90%
- —
First fall frost
- 10%
- —
- 20%
- —
- 50%
- —
- 80%
- —
- 90%
- —
28°F — killing freeze
Last spring freeze
- 10%
- 06-27
- 20%
- 06-21
- 50%
- 06-11
- 80%
- 06-03
- 90%
- 05-30
First fall freeze
- 10%
- 08-31
- 20%
- 09-05
- 50%
- 09-13
- 80%
- 09-22
- 90%
- 09-26
Growing season length (days, 28°F threshold)
- Short year
- 65
- Median
- 94
- Long year
- 119
Source NOAA station
HERMIT 8 SE, CO US
14.7 mi · 30 yrs of record (1991–2020) · 8949 ft elev.
Data from HERMIT 8 SE, CO US, 14.7 miles away with 30-year NOAA record (1991-2020).
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