Tillamook County, Oregon · Frost dates
Tillamook County frost dates.
First-frost, last-frost, and growing-season length for Tillamook County, Oregon. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8b
32°F — light freeze
Last spring frost
- 10%
- 05-04
- 20%
- 04-27
- 50%
- 04-05
- 80%
- 03-15
- 90%
- 03-01
First fall frost
- 10%
- 10-13
- 20%
- 10-21
- 50%
- 11-04
- 80%
- 11-26
- 90%
- 12-07
28°F — killing freeze
Last spring freeze
- 10%
- 03-26
- 20%
- 03-11
- 50%
- 02-19
- 80%
- 01-09
- 90%
- 12-17
First fall freeze
- 10%
- 11-01
- 20%
- 11-12
- 50%
- 12-04
- 80%
- 01-05
- 90%
- 02-10
Growing season length (days, 28°F threshold)
- Short year
- 220
- Median
- 288
- Long year
- 420
Source NOAA station
TILLAMOOK 6SE, OR US
1.8 mi · 30 yrs of record (1991–2020) · 140 ft elev.
Data from TILLAMOOK 6SE, OR US, 1.8 miles away with 30-year NOAA record (1991-2020).
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