Jackson County, Michigan · Frost dates
Jackson County frost dates.
First-frost, last-frost, and growing-season length for Jackson County, Michigan. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5b
32°F — light freeze
Last spring frost
- 10%
- 05-18
- 20%
- 05-12
- 50%
- 05-01
- 80%
- 04-22
- 90%
- 04-16
First fall frost
- 10%
- 09-30
- 20%
- 10-05
- 50%
- 10-14
- 80%
- 10-23
- 90%
- 10-28
28°F — killing freeze
Last spring freeze
- 10%
- 05-06
- 20%
- 05-01
- 50%
- 04-20
- 80%
- 04-10
- 90%
- 04-04
First fall freeze
- 10%
- 10-12
- 20%
- 10-18
- 50%
- 10-28
- 80%
- 11-05
- 90%
- 11-11
Growing season length (days, 28°F threshold)
- Short year
- 159
- Median
- 191
- Long year
- 221
Source NOAA station
JACKSON REYNOLDS FLD, MI US
2.7 mi · 30 yrs of record (1991–2020) · 998 ft elev.
Data from JACKSON REYNOLDS FLD, MI US, 2.7 miles away with 30-year NOAA record (1991-2020).
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