Is this weather normal in Benton County?

Iowa · county records since 1895, through September 2026.

Weather › Iowa › Benton County

10 of the last 12 months ran warmer than usual in Benton County. 9.3 inches fell in September, the 5th-most for a September there in 132 years.

This week

Usual for Oct 28 to Nov 3: highs near 54°, lows near 33°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +6.3°OctNov: +2.6°NovDec: -2.9°DecJan 2026: -1.2°JanFeb: +6.1°FebMar: +4.9°MarApr: +4.3°AprMay: +0.1°MayJun: +0.1°JunJul: +2.7°JulAug: +0.8°AugSep: +3.8°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: -1.5 inOctNov: -0.4 inNovDec: -0.7 inDecJan 2026: +0.1 inJanFeb: -0.7 inFebMar: -0.2 inMarApr: +3.7 inAprMay: -2.7 inMayJun: +2.2 inJunJul: +2.1 inJulAug: +1.1 inAugSep: +5.7 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 Benton County

MonthUsual high / lowUsual rainWarmestColdest
January27° / 10°1.1 in32.0° 20061.5° 1912
February32° / 15°1.2 in35.8° 20245.1° 1936
March46° / 26°2.0 in51.6° 201219.6° 1960
April60° / 37°3.8 in56.4° 192538.8° 2018
May71° / 49°4.7 in68.4° 193451.5° 1907
June80° / 59°5.5 in77.2° 193463.6° 1945
July83° / 62°4.3 in81.5° 190167.3° 2009
August81° / 60°4.3 in79.3° 194765.4° 1915
September75° / 52°3.6 in69.7° 193157.0° 1918
October62° / 39°2.9 in61.7° 196339.6° 1925
November46° / 27°2.1 in47.5° 200127.1° 1959
December33° / 17°1.5 in34.5° 20159.6° 1983

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

Towns in Benton County

Crime Radar: Vinton

Nearby counties