Montrose County, Colorado · Frost dates
Montrose County frost dates.
First-frost, last-frost, and growing-season length for Montrose County, Colorado. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 06-13
- 20%
- 06-07
- 50%
- 05-25
- 80%
- 05-12
- 90%
- 05-07
First fall frost
- 10%
- 09-14
- 20%
- 09-21
- 50%
- 10-01
- 80%
- 10-09
- 90%
- 10-14
28°F — killing freeze
Last spring freeze
- 10%
- 06-02
- 20%
- 05-25
- 50%
- 05-11
- 80%
- 04-30
- 90%
- 04-25
First fall freeze
- 10%
- 09-22
- 20%
- 09-29
- 50%
- 10-08
- 80%
- 10-19
- 90%
- 10-23
Growing season length (days, 28°F threshold)
- Short year
- 112
- Median
- 150
- Long year
- 181
Source NOAA station
NORWOOD, CO US
19.1 mi · 30 yrs of record (1991–2020) · 7020 ft elev.
Data from NORWOOD, CO US, 19.1 miles away with 30-year NOAA record (1991-2020).
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