Is this weather normal in Clayton County?

Iowa · county records since 1895, through September 2026.

Weather › Iowa › Clayton County

The ground in Clayton County is unusually wet: NOAA's Palmer reading for September was +3.1. Clayton County has warmed about 0.4° per decade since 1970.

This week

Usual for Oct 28 to Nov 3: highs near 52°, lows near 33°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +5.1°OctNov: +2.6°NovDec: -3.0°DecJan 2026: -1.9°JanFeb: +5.9°FebMar: +4.7°MarApr: +4.6°AprMay: +0.5°MayJun: -0.4°JunJul: +3.3°JulAug: +0.5°AugSep: +3.9°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: -1.2 inOctNov: -0.9 inNovDec: -0.9 inDecJan 2026: +0.7 inJanFeb: -0.5 inFebMar: +0.5 inMarApr: +3.1 inAprMay: -2.2 inMayJun: +0.2 inJunJul: -0.4 inJulAug: +1.1 inAugSep: +3.5 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 Clayton County

MonthUsual high / lowUsual rainWarmestColdest
January26° / 9°1.2 in30.5° 2006-1.7° 1912
February31° / 14°1.2 in34.9° 20243.3° 1936
March44° / 25°2.1 in49.7° 201220.0° 1960
April58° / 36°3.9 in55.4° 191537.0° 2018
May69° / 47°4.7 in67.0° 193451.4° 1907
June79° / 58°5.8 in75.4° 193362.0° 1969
July82° / 62°4.7 in81.5° 190165.6° 2009
August80° / 59°4.1 in78.7° 194764.1° 1915
September73° / 51°3.9 in68.2° 189755.0° 1918
October60° / 39°2.9 in59.6° 194738.9° 1925
November44° / 27°2.1 in46.7° 200125.9° 1959
December31° / 16°1.6 in34.1° 20159.1° 1985

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

Towns in Clayton County

Nearby counties