Humboldt County is well known for its high annual rainfall, with average years having from 40 to 110 inches of precipitation depending on location.



The majority of the rainfall occurs in the winter months while the summer months are nearly dry. Below are the percentages of the total rainfall in a given month. These are fairly consistent throughout the County.

APRIL            6.60%
MAY                 4.50%
JUNE            1.60%

JULY            0.16%
AUGUST            0.36%
SEPTEMBER        1.40%

OCTOBER        7.60%
NOVEMBER    11.70%
DECEMBER    18.20%

JANUARY        19.30%
FEBRUARY    15.80%
MARCH        12.70%

Historical Weather Data for Eureka

Current forecast for Fortuna