Butler County, Ohio · Frost dates
Butler County frost dates.
First-frost, last-frost, and growing-season length for Butler County, Ohio. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 05-10
- 20%
- 05-04
- 50%
- 04-22
- 80%
- 04-11
- 90%
- 04-06
First fall frost
- 10%
- 10-05
- 20%
- 10-09
- 50%
- 10-18
- 80%
- 10-25
- 90%
- 10-29
28°F — killing freeze
Last spring freeze
- 10%
- 04-28
- 20%
- 04-20
- 50%
- 04-08
- 80%
- 03-31
- 90%
- 03-26
First fall freeze
- 10%
- 10-15
- 20%
- 10-20
- 50%
- 10-27
- 80%
- 11-03
- 90%
- 11-08
Growing season length (days, 28°F threshold)
- Short year
- 170
- Median
- 202
- Long year
- 227
Source NOAA station
HAMILTON BUTLER CO RGNL AP, OH US
5.6 mi · 30 yrs of record (1991–2020) · 634 ft elev.
Data from HAMILTON BUTLER CO RGNL AP, OH US, 5.6 miles away with 30-year NOAA record (1991-2020).
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