Is this weather normal in Clarke County?

Iowa · county records since 1895, through September 2026.

Weather › Iowa › Clarke County

Clarke County just had its 5th-warmest September in 132 years, +6° against the usual. 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 Clarke 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: +2.2°NovDec: -0.1°DecJan 2026: -0.1°JanFeb: +8.7°FebMar: +7.6°MarApr: +4.9°AprMay: +1.2°MayJun: +0.8°JunJul: +2.6°JulAug: +1.0°AugSep: +5.6°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: -0.1 inOctNov: -0.9 inNovDec: -0.5 inDecJan 2026: +0.1 inJanFeb: -1.0 inFebMar: -0.2 inMarApr: +2.3 inAprMay: -0.9 inMayJun: +1.2 inJunJul: -0.4 inJulAug: +2.0 inAugSep: +5.3 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 Clarke County

MonthUsual high / lowUsual rainWarmestColdest
January32° / 13°1.0 in35.0° 20065.8° 1912
February37° / 18°1.3 in39.8° 20248.1° 1936
March50° / 28°2.1 in53.0° 201221.6° 1960
April62° / 39°4.0 in57.2° 191542.2° 2018
May72° / 50°5.4 in69.5° 193455.1° 1907
June81° / 60°5.0 in79.1° 193464.3° 1903
July85° / 64°4.3 in84.7° 193669.0° 2009
August84° / 62°4.2 in81.5° 194766.3° 1915
September77° / 53°3.7 in73.3° 189758.2° 1993
October64° / 41°2.8 in64.5° 196340.7° 1925
November49° / 29°2.0 in49.2° 200130.0° 1991
December37° / 19°1.4 in37.0° 20239.9° 1983

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

Towns in Clarke County

Crime Radar: Osceola

Nearby counties