Dickinson County, Michigan · Frost dates
Dickinson County frost dates.
First-frost, last-frost, and growing-season length for Dickinson County, Michigan. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5b
32°F — light freeze
Last spring frost
- 10%
- 06-06
- 20%
- 06-02
- 50%
- 05-25
- 80%
- 05-15
- 90%
- 05-10
First fall frost
- 10%
- 09-08
- 20%
- 09-14
- 50%
- 09-24
- 80%
- 10-03
- 90%
- 10-07
28°F — killing freeze
Last spring freeze
- 10%
- 05-26
- 20%
- 05-22
- 50%
- 05-11
- 80%
- 05-02
- 90%
- 04-28
First fall freeze
- 10%
- 09-21
- 20%
- 09-26
- 50%
- 10-05
- 80%
- 10-15
- 90%
- 10-19
Growing season length (days, 28°F threshold)
- Short year
- 118
- Median
- 147
- Long year
- 174
Source NOAA station
IRON MTN FORD AP, MI US
18.0 mi · 30 yrs of record (1991–2020) · 1149 ft elev.
Data from IRON MTN FORD AP, MI US, 18 miles away with 30-year NOAA record (1991-2020).
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