Allen County, Ohio · Frost dates
Allen County frost dates.
First-frost, last-frost, and growing-season length for Allen County, Ohio. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 05-11
- 20%
- 05-04
- 50%
- 04-24
- 80%
- 04-16
- 90%
- 04-12
First fall frost
- 10%
- 10-10
- 20%
- 10-15
- 50%
- 10-24
- 80%
- 11-01
- 90%
- 11-05
28°F — killing freeze
Last spring freeze
- 10%
- 04-29
- 20%
- 04-23
- 50%
- 04-14
- 80%
- 04-04
- 90%
- 03-31
First fall freeze
- 10%
- 10-22
- 20%
- 10-27
- 50%
- 11-03
- 80%
- 11-12
- 90%
- 11-18
Growing season length (days, 28°F threshold)
- Short year
- 176
- Median
- 203
- Long year
- 232
Source NOAA station
LIMA WWTP, OH US
3.5 mi · 30 yrs of record (1991–2020) · 850 ft elev.
Data from LIMA WWTP, OH US, 3.5 miles away with 30-year NOAA record (1991-2020).
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