Good to know
Is the north coast's climate hard on outdoor wood?
The USDA Forest Products Laboratory rates how hard a place's climate is on wood left outdoors above the ground with a decay hazard index: the higher the number, the greater the hazard. Its table of values for 1971 to 2000 lists Eureka at 44.5.
The detail
The index
The USDA Forest Products Laboratory rates how hard a place's climate is on wood left outdoors above the ground with a decay hazard index: the higher the number, the greater the hazard.
Its map groups places into three bands: under 35, 35 to 65, and over 65.
Source: USDA Forest Products Laboratory: Decay Hazard (Scheffer) Index Values, 1971-2000 (FPL-GTR-179)
Eureka
Its table of values for 1971 to 2000 lists Eureka at 44.5.
Source: USDA Forest Products Laboratory: Decay Hazard (Scheffer) Index Values, 1971-2000 (FPL-GTR-179)
What it does not tell you
The index compares places; it does not predict how fast decay spreads or when a particular structure will fail.
Source: USDA Forest Products Laboratory: Decay Hazard (Scheffer) Index Values, 1971-2000 (FPL-GTR-179)
Rain
Eureka averages 40.4 inches of rain a year, and 77 percent of it falls from November through March (NOAA, 1991-2020 normals).
Source: NOAA National Centers for Environmental Information, 1991-2020 normals: Eureka (Woodley Island)
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