Coos County
has a marine climate - mild and humid - resulting from the moderating
influences of the Pacific Ocean and
from the rainfall induced by the
Coast Range. From March through October, the area is subject to
prevailing winds from
the northwest. From November through
February, winds come mainly from the southwest.
The Bay
Area's most recent 30-year annual average shows recorded precipitation
of 63.48 inches, measured at the
North
Bend Airport-Coos County Airport District (1961-1990). The majority of our rain
falls in November (10.27"), December (10.97"), and
January
(9.73"). Summer months tend to be drier, particularly July
(.45") and August (.96"). Temperature extremes are
rare,
with annual mean highs of 59.5 degrees and annual mean lows of 45.5
degrees. Given the average elevation - Coos
Bay at 10' and North
Bend at 16' feet above sea level - snowfall is rare.