Is this weather normal in Grundy County?

Iowa · county records since 1895, through September 2026.

Weather › Iowa › Grundy County

The ground in Grundy County is unusually wet: NOAA's Palmer reading for September was +3.0. Grundy County has warmed about 0.5° per decade since 1970.

This week

Usual for Oct 28 to Nov 3: highs near 53°, lows near 33°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +5.8°OctNov: +3.6°NovDec: -2.9°DecJan 2026: -0.5°JanFeb: +6.5°FebMar: +5.2°MarApr: +4.3°AprMay: +0.7°MayJun: 0.0°JunJul: +2.8°JulAug: +0.8°AugSep: +4.0°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: -0.5 inOctNov: -0.4 inNovDec: -0.6 inDecJan 2026: +0.2 inJanFeb: -0.4 inFebMar: +0.6 inMarApr: +2.5 inAprMay: -2.6 inMayJun: +0.6 inJunJul: +2.7 inJulAug: +0.4 inAugSep: +4.1 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 Grundy County

MonthUsual high / lowUsual rainWarmestColdest
January26° / 10°0.9 in30.6° 20060.5° 1912
February31° / 14°1.1 in36.2° 20243.3° 1936
March45° / 26°1.9 in50.5° 201218.9° 1960
April59° / 37°3.8 in56.4° 191538.2° 2018
May71° / 48°4.9 in69.2° 193451.7° 1907
June80° / 59°5.8 in77.4° 193462.5° 1945
July83° / 62°4.3 in81.6° 193667.1° 2009
August81° / 59°4.3 in78.9° 194764.4° 1915
September75° / 51°3.4 in69.5° 189756.4° 1993
October62° / 39°2.7 in60.6° 196338.0° 1925
November45° / 27°1.9 in47.6° 200126.3° 1959
December32° / 16°1.4 in34.1° 20237.1° 1983

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

Towns in Grundy County

Crime Radar: Grundy Center

Nearby counties