Hillsdale County, Michigan · Frost dates
Hillsdale County frost dates.
First-frost, last-frost, and growing-season length for Hillsdale County, Michigan. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5b
32°F — light freeze
Last spring frost
- 10%
- 05-19
- 20%
- 05-14
- 50%
- 05-03
- 80%
- 04-24
- 90%
- 04-20
First fall frost
- 10%
- 09-29
- 20%
- 10-03
- 50%
- 10-12
- 80%
- 10-22
- 90%
- 10-27
28°F — killing freeze
Last spring freeze
- 10%
- 05-09
- 20%
- 05-03
- 50%
- 04-23
- 80%
- 04-13
- 90%
- 04-08
First fall freeze
- 10%
- 10-10
- 20%
- 10-16
- 50%
- 10-26
- 80%
- 11-03
- 90%
- 11-08
Growing season length (days, 28°F threshold)
- Short year
- 154
- Median
- 186
- Long year
- 214
Source NOAA station
HILLSDALE, MI US
0.6 mi · 30 yrs of record (1991–2020) · 1080 ft elev.
Data from HILLSDALE, MI US, 0.6 miles away with 30-year NOAA record (1991-2020).
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