Montgomery County, Ohio · Frost dates
Montgomery County frost dates.
First-frost, last-frost, and growing-season length for Montgomery County, Ohio. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 05-05
- 20%
- 04-30
- 50%
- 04-18
- 80%
- 04-07
- 90%
- 04-03
First fall frost
- 10%
- 10-13
- 20%
- 10-17
- 50%
- 10-25
- 80%
- 11-01
- 90%
- 11-07
28°F — killing freeze
Last spring freeze
- 10%
- 04-24
- 20%
- 04-17
- 50%
- 04-06
- 80%
- 03-29
- 90%
- 03-23
First fall freeze
- 10%
- 10-23
- 20%
- 10-28
- 50%
- 11-04
- 80%
- 11-14
- 90%
- 11-18
Growing season length (days, 28°F threshold)
- Short year
- 182
- Median
- 212
- Long year
- 240
Source NOAA station
DAYTON MCD, OH US
5.3 mi · 30 yrs of record (1991–2020) · 720 ft elev.
Data from DAYTON MCD, OH US, 5.3 miles away with 30-year NOAA record (1991-2020).
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