Houghton County, Michigan · Frost dates
Houghton County frost dates.
First-frost, last-frost, and growing-season length for Houghton County, Michigan. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5b
32°F — light freeze
Last spring frost
- 10%
- 06-17
- 20%
- 06-11
- 50%
- 06-01
- 80%
- 05-21
- 90%
- 05-14
First fall frost
- 10%
- 09-09
- 20%
- 09-13
- 50%
- 09-23
- 80%
- 10-03
- 90%
- 10-07
28°F — killing freeze
Last spring freeze
- 10%
- 06-04
- 20%
- 05-29
- 50%
- 05-14
- 80%
- 05-04
- 90%
- 04-30
First fall freeze
- 10%
- 09-20
- 20%
- 09-26
- 50%
- 10-07
- 80%
- 10-18
- 90%
- 10-23
Growing season length (days, 28°F threshold)
- Short year
- 108
- Median
- 146
- Long year
- 176
Source NOAA station
JACOBSVILLE, MI US
10.4 mi · 30 yrs of record (1991–2020) · 650 ft elev.
Data from JACOBSVILLE, MI US, 10.4 miles away with 30-year NOAA record (1991-2020).
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