Is this weather normal in Canyon County?

Idaho · county records since 1895, through September 2026.

Weather › Idaho › Canyon County

10 of the last 12 months ran warmer than usual in Canyon County. Canyon County has warmed about 0.5° per decade since 1970.

This week

Usual for Oct 28 to Nov 3: highs near 58°, lows near 33°

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

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usual high for the datewarmercooler

The last 12 months

Oct: -1.0°OctNov: +5.5°NovDec: +9.2°DecJan 2026: +1.9°JanFeb: +4.0°FebMar: +5.0°MarApr: +0.3°AprMay: +3.6°MayJun: +0.2°JunJul: +2.9°JulAug: +1.9°AugSep: -1.8°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: +0.3 inOctNov: -0.6 inNovDec: +0.6 inDecJan 2026: -0.4 inJanFeb: +0.1 inFebMar: -0.3 inMarApr: +1.9 inAprMay: -1.1 inMayJun: +0.0 inJunJul: -0.0 inJulAug: -0.1 inAugSep: +0.0 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 Canyon County

MonthUsual high / lowUsual rainWarmestColdest
January39° / 24°1.2 in41.4° 195311.4° 1949
February47° / 27°0.8 in44.3° 190721.5° 1989
March58° / 33°1.0 in50.5° 193434.7° 1917
April65° / 37°0.9 in58.1° 193444.4° 1975
May75° / 45°1.2 in65.4° 193453.0° 1896
June83° / 52°0.7 in75.1° 201561.0° 1953
July93° / 59°0.2 in81.6° 202165.1° 1993
August91° / 56°0.2 in78.8° 202264.6° 1899
September81° / 47°0.4 in69.4° 199056.0° 1985
October66° / 37°0.7 in59.0° 198843.9° 2019
November50° / 29°0.9 in45.2° 201629.2° 1985
December40° / 24°1.2 in42.2° 191713.9° 1985

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

Towns in Canyon County

Crime Radar: Nampa, Caldwell, Homedale

Nearby counties