Humboldt Redwoods State Park Climate

The park normally receives up to 65 inches of rainfall a year. Some areas of the park receive more rain. It can rain at any time of the year, but generally stops by June or July. Morning and evening fog in the summer keeps the temperature cool in the river basin. The fog usually burns off by noon. High temperatures in the summer can reach 100 degrees.

In winter, it can snow, but this is not common. Most rainfall here occurs between October and May.

Fog and rain make this a favorable climate for the coast redwood trees to grow in. Some larger trees can transpire up to 500 gallons of water a day.

Campers should come prepared for all types of weather. It can be sunny and hot during the day and cool and foggy at night.

Mosquitoes are plentiful in some areas of the park.

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Revised: 15 November 1996
Copyright © 1996 Humboldt Redwoods Interpretive Association