Montgomery County, Pennsylvania · Frost dates
Montgomery County frost dates.
First-frost, last-frost, and growing-season length for Montgomery County, Pennsylvania. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6b
32°F — light freeze
Last spring frost
- 10%
- 05-09
- 20%
- 05-04
- 50%
- 04-24
- 80%
- 04-15
- 90%
- 04-10
First fall frost
- 10%
- 10-01
- 20%
- 10-05
- 50%
- 10-15
- 80%
- 10-26
- 90%
- 11-01
28°F — killing freeze
Last spring freeze
- 10%
- 04-27
- 20%
- 04-20
- 50%
- 04-10
- 80%
- 04-01
- 90%
- 03-28
First fall freeze
- 10%
- 10-10
- 20%
- 10-16
- 50%
- 10-27
- 80%
- 11-07
- 90%
- 11-12
Growing season length (days, 28°F threshold)
- Short year
- 166
- Median
- 200
- Long year
- 229
Source NOAA station
GRATERFORD 1 E, PA US
3.1 mi · 30 yrs of record (1991–2020) · 279 ft elev.
Data from GRATERFORD 1 E, PA US, 3.1 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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