Klamath County, Oregon · Frost dates
Klamath County frost dates.
First-frost, last-frost, and growing-season length for Klamath County, Oregon. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8b
32°F — light freeze
Last spring frost
- 10%
- —
- 20%
- —
- 50%
- —
- 80%
- —
- 90%
- —
First fall frost
- 10%
- —
- 20%
- —
- 50%
- —
- 80%
- —
- 90%
- —
28°F — killing freeze
Last spring freeze
- 10%
- 06-28
- 20%
- 06-23
- 50%
- 06-10
- 80%
- 05-26
- 90%
- 05-18
First fall freeze
- 10%
- 08-27
- 20%
- 09-02
- 50%
- 09-13
- 80%
- 09-24
- 90%
- 09-30
Growing season length (days, 28°F threshold)
- Short year
- 60
- Median
- 95
- Long year
- 135
Source NOAA station
CHILOQUIN 12 NW (FORT KLAMATH), OR US
17.8 mi · 30 yrs of record (1991–2020) · 4180 ft elev.
Data from CHILOQUIN 12 NW (FORT KLAMATH), OR US, 17.8 miles away with 30-year NOAA record (1991-2020).
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