Washington County, Maine · Frost dates
Washington County frost dates.
First-frost, last-frost, and growing-season length for Washington County, Maine. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 05-12
- 20%
- 05-08
- 50%
- 05-02
- 80%
- 04-25
- 90%
- 04-21
First fall frost
- 10%
- 10-01
- 20%
- 10-04
- 50%
- 10-15
- 80%
- 10-25
- 90%
- 10-30
28°F — killing freeze
Last spring freeze
- 10%
- 04-30
- 20%
- 04-28
- 50%
- 04-21
- 80%
- 04-13
- 90%
- 04-08
First fall freeze
- 10%
- 10-13
- 20%
- 10-19
- 50%
- 10-29
- 80%
- 11-06
- 90%
- 11-10
Growing season length (days, 28°F threshold)
- Short year
- 166
- Median
- 191
- Long year
- 216
Source NOAA station
WESLEY, ME US
3.0 mi · 30 yrs of record (1991–2020) · 410 ft elev.
Data from WESLEY, ME US, 3 miles away with 30-year NOAA record (1991-2020).
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