Is this weather normal in Sioux County?

Iowa · county records since 1895, through September 2026.

Weather › Iowa › Sioux County

Every one of the last 12 months ran warmer than usual in Sioux County. Sioux County has warmed about 0.4° per decade since 1970.

This week

Usual for Oct 28 to Nov 3: highs near 53°, lows near 31°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +6.5°OctNov: +3.5°NovDec: +0.5°DecJan 2026: +1.6°JanFeb: +10.0°FebMar: +6.4°MarApr: +1.8°AprMay: +0.9°MayJun: +0.7°JunJul: +3.0°JulAug: +1.0°AugSep: +4.3°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: -1.1 inOctNov: -0.1 inNovDec: -0.0 inDecJan 2026: -0.5 inJanFeb: -0.8 inFebMar: -0.9 inMarApr: +0.2 inAprMay: -0.6 inMayJun: -0.5 inJunJul: -0.7 inJulAug: -1.1 inAugSep: +3.1 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 Sioux County

MonthUsual high / lowUsual rainWarmestColdest
January26° / 8°0.7 in31.2° 20060.5° 1912
February31° / 12°0.8 in34.6° 2024-2.0° 1936
March45° / 24°1.6 in50.2° 201217.2° 1899
April59° / 35°3.0 in55.3° 191536.6° 2018
May71° / 47°4.2 in70.5° 193450.8° 1907
June81° / 58°4.6 in76.8° 193361.7° 1945
July84° / 62°3.4 in83.1° 193665.8° 1992
August82° / 59°3.4 in78.0° 193664.8° 1915
September75° / 50°3.2 in69.8° 193153.7° 1965
October61° / 38°2.4 in59.1° 196336.6° 1925
November45° / 24°1.3 in45.4° 200118.5° 1896
December30° / 13°0.9 in32.0° 20232.1° 1983

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

Towns in Sioux County

Crime Radar: Sioux Center, Orange City, Rock Valley, Hawarden

Nearby counties