Washington County, Pennsylvania · Frost dates
Washington County frost dates.
First-frost, last-frost, and growing-season length for Washington County, Pennsylvania. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6b
32°F — light freeze
Last spring frost
- 10%
- 05-18
- 20%
- 05-10
- 50%
- 04-24
- 80%
- 04-13
- 90%
- 04-08
First fall frost
- 10%
- 10-08
- 20%
- 10-13
- 50%
- 10-23
- 80%
- 11-01
- 90%
- 11-05
28°F — killing freeze
Last spring freeze
- 10%
- 05-04
- 20%
- 04-24
- 50%
- 04-11
- 80%
- 04-02
- 90%
- 03-29
First fall freeze
- 10%
- 10-19
- 20%
- 10-24
- 50%
- 11-02
- 80%
- 11-11
- 90%
- 11-16
Growing season length (days, 28°F threshold)
- Short year
- 168
- Median
- 205
- Long year
- 232
Source NOAA station
WASHINGTON 3 NE, PA US
3.6 mi · 30 yrs of record (1991–2020) · 1300 ft elev.
Data from WASHINGTON 3 NE, PA US, 3.6 miles away with 30-year NOAA record (1991-2020).
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