Westmoreland County, Pennsylvania · Frost dates
Westmoreland County frost dates.
First-frost, last-frost, and growing-season length for Westmoreland County, Pennsylvania. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6b
32°F — light freeze
Last spring frost
- 10%
- 05-19
- 20%
- 05-13
- 50%
- 05-01
- 80%
- 04-22
- 90%
- 04-17
First fall frost
- 10%
- 10-03
- 20%
- 10-06
- 50%
- 10-13
- 80%
- 10-22
- 90%
- 10-26
28°F — killing freeze
Last spring freeze
- 10%
- 05-08
- 20%
- 05-01
- 50%
- 04-20
- 80%
- 04-11
- 90%
- 04-06
First fall freeze
- 10%
- 10-10
- 20%
- 10-15
- 50%
- 10-24
- 80%
- 11-02
- 90%
- 11-08
Growing season length (days, 28°F threshold)
- Short year
- 155
- Median
- 187
- Long year
- 216
Source NOAA station
MT PLEASANT, PA US
6.8 mi · 30 yrs of record (1991–2020) · 1003 ft elev.
Data from MT PLEASANT, PA US, 6.8 miles away with 30-year NOAA record (1991-2020).
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