Clear Creek County, Colorado · Frost dates
Clear Creek County frost dates.
First-frost, last-frost, and growing-season length for Clear Creek County, Colorado. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 06-14
- 20%
- 06-09
- 50%
- 05-30
- 80%
- 05-21
- 90%
- 05-17
First fall frost
- 10%
- 09-05
- 20%
- 09-11
- 50%
- 09-19
- 80%
- 09-27
- 90%
- 09-30
28°F — killing freeze
Last spring freeze
- 10%
- 05-31
- 20%
- 05-25
- 50%
- 05-15
- 80%
- 05-07
- 90%
- 05-03
First fall freeze
- 10%
- 09-16
- 20%
- 09-21
- 50%
- 09-30
- 80%
- 10-09
- 90%
- 10-15
Growing season length (days, 28°F threshold)
- Short year
- 108
- Median
- 138
- Long year
- 165
Source NOAA station
GEORGETOWN, CO US
1.9 mi · 30 yrs of record (1991–2020) · 8520 ft elev.
Data from GEORGETOWN, CO US, 1.9 miles away with 30-year NOAA record (1991-2020).
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