Clatsop County, Oregon · Frost dates
Clatsop County frost dates.
First-frost, last-frost, and growing-season length for Clatsop County, Oregon. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8b
32°F — light freeze
Last spring frost
- 10%
- 04-29
- 20%
- 04-20
- 50%
- 04-02
- 80%
- 03-16
- 90%
- 03-04
First fall frost
- 10%
- 10-18
- 20%
- 10-26
- 50%
- 11-12
- 80%
- 11-30
- 90%
- 12-06
28°F — killing freeze
Last spring freeze
- 10%
- 03-31
- 20%
- 03-21
- 50%
- 02-27
- 80%
- 01-29
- 90%
- 12-31
First fall freeze
- 10%
- 11-07
- 20%
- 11-17
- 50%
- 12-04
- 80%
- 01-03
- 90%
- 02-01
Growing season length (days, 28°F threshold)
- Short year
- 221
- Median
- 280
- Long year
- 397
Source NOAA station
SEASIDE, OR US
10.8 mi · 30 yrs of record (1991–2020) · 10 ft elev.
Data from SEASIDE, OR US, 10.8 miles away with 30-year NOAA record (1991-2020).
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