Clarion County, Pennsylvania · Frost dates
Clarion County frost dates.
First-frost, last-frost, and growing-season length for Clarion County, Pennsylvania. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6b
32°F — light freeze
Last spring frost
- 10%
- 05-24
- 20%
- 05-20
- 50%
- 05-09
- 80%
- 04-30
- 90%
- 04-24
First fall frost
- 10%
- 09-30
- 20%
- 10-03
- 50%
- 10-11
- 80%
- 10-21
- 90%
- 10-26
28°F — killing freeze
Last spring freeze
- 10%
- 05-15
- 20%
- 05-09
- 50%
- 04-29
- 80%
- 04-18
- 90%
- 04-14
First fall freeze
- 10%
- 10-08
- 20%
- 10-14
- 50%
- 10-24
- 80%
- 11-02
- 90%
- 11-07
Growing season length (days, 28°F threshold)
- Short year
- 146
- Median
- 178
- Long year
- 207
Source NOAA station
CLARION 3 SW, PA US
0.9 mi · 30 yrs of record (1991–2020) · 1040 ft elev.
Data from CLARION 3 SW, PA US, 0.9 miles away with 30-year NOAA record (1991-2020).
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