Is this weather normal in Humboldt County?

California · county records since 1895, through September 2026.

Weather › California › Humboldt County

Humboldt County is in severe drought: NOAA's Palmer reading for September was -3.5. 10 of the last 12 months ran warmer than usual there.

This week

Usual for Oct 28 to Nov 3: highs near 61°, lows near 43°

That is the 1991 to 2020 average for these dates in Humboldt County. The Weather Service forecast fills in below.

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usual high for the datewarmercooler

The last 12 months

Oct: -0.9°OctNov: +3.1°NovDec: +3.6°DecJan 2026: +2.0°JanFeb: +2.3°FebMar: +6.6°MarApr: +1.4°AprMay: +1.9°MayJun: +2.4°JunJul: +0.9°JulAug: +2.1°AugSep: -1.1°Sepwarmercooler

Each bar is a month's average temperature against the usual for that month (1991 to 2020). Ranks compare the same month in every year since 1895.

Every year since 1895

18952025

Rain and drought

Oct: +0.4 inOctNov: +1.9 inNovDec: +3.1 inDecJan 2026: -4.8 inJanFeb: +1.3 inFebMar: -8.1 inMarApr: -0.8 inAprMay: -2.0 inMayJun: -0.3 inJunJul: -0.1 inJulAug: -0.1 inAugSep: +0.4 inSepwetterdrier

Rain and melted snow against the usual for each month. The drought reading is NOAA's Palmer index for the county.

Month by month in Humboldt County

MonthUsual high / lowUsual rainWarmestColdest
January51° / 38°10.9 in49.3° 200333.6° 1937
February53° / 38°9.3 in51.0° 196338.7° 1933
March57° / 39°8.6 in54.3° 202640.7° 1897
April61° / 40°5.1 in55.3° 201643.2° 1967
May68° / 45°2.5 in59.9° 199249.4° 1933
June74° / 49°0.8 in66.0° 201556.4° 1923
July81° / 54°0.1 in72.0° 202461.8° 1916
August82° / 54°0.2 in70.8° 201761.4° 1899
September78° / 51°0.7 in68.0° 202058.9° 1911
October68° / 46°3.5 in61.4° 201550.8° 1912
November55° / 41°7.3 in51.3° 199541.0° 1994
December49° / 37°12.6 in47.5° 201436.3° 1990

Warmest and coldest are the month's whole-month average temperature, with the year it happened.

Towns in Humboldt County

Crime Radar: Eureka, Arcata, Fortuna, Rio Dell

Nearby counties