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
