Is this weather normal in Siskiyou County?

California · county records since 1895, through September 2026.

Weather › California › Siskiyou County

Siskiyou 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 56°, lows near 35°

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

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usual high for the datewarmercooler

The last 12 months

Oct: -2.5°OctNov: +4.8°NovDec: +6.5°DecJan 2026: +4.5°JanFeb: +2.6°FebMar: +9.3°MarApr: +1.8°AprMay: +4.1°MayJun: +3.5°JunJul: +1.3°JulAug: +2.9°AugSep: -3.3°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: +0.5 inOctNov: -1.0 inNovDec: +1.7 inDecJan 2026: -3.7 inJanFeb: +0.6 inFebMar: -4.4 inMarApr: +0.3 inAprMay: -0.3 inMayJun: -0.8 inJunJul: -0.3 inJulAug: -0.3 inAugSep: +0.5 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 Siskiyou County

MonthUsual high / lowUsual rainWarmestColdest
January43° / 28°6.3 in41.6° 201521.0° 1937
February46° / 28°5.1 in43.7° 199528.9° 1903
March51° / 30°4.9 in49.8° 202631.9° 1917
April56° / 33°3.1 in50.0° 199035.2° 1967
May66° / 39°2.1 in59.8° 199244.4° 1933
June74° / 45°1.0 in67.2° 201552.7° 1953
July84° / 53°0.3 in74.5° 202460.5° 1993
August83° / 52°0.3 in71.8° 202258.7° 1899
September77° / 46°0.6 in65.7° 199154.1° 1925
October63° / 38°2.3 in56.7° 198844.3° 1919
November49° / 32°4.5 in45.8° 199531.8° 1994
December42° / 27°7.1 in41.0° 202527.8° 1967

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

Towns in Siskiyou County

Crime Radar: Yreka, Weed, Mount Shasta, Lake Shastina

Nearby counties