Is this weather normal in Dallas County?

Iowa · county records since 1895, through September 2026.

Weather › Iowa › Dallas County

Every one of the last 12 months ran warmer than usual in Dallas County. 9.0 inches fell in September, the 4th-most for a September there in 132 years.

This week

Usual for Oct 28 to Nov 3: highs near 56°, lows near 34°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +6.4°OctNov: +2.5°NovDec: +0.1°DecJan 2026: +0.8°JanFeb: +8.3°FebMar: +6.5°MarApr: +3.9°AprMay: +0.4°MayJun: +0.6°JunJul: +2.5°JulAug: +1.0°AugSep: +4.5°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: +0.2 inOctNov: -0.2 inNovDec: -0.4 inDecJan 2026: +0.3 inJanFeb: -0.6 inFebMar: +0.6 inMarApr: +2.9 inAprMay: -2.2 inMayJun: -0.5 inJunJul: +2.4 inJulAug: +2.1 inAugSep: +5.5 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 Dallas County

MonthUsual high / lowUsual rainWarmestColdest
January30° / 12°0.9 in34.1° 20063.5° 1912
February35° / 16°1.1 in38.5° 20245.8° 1936
March48° / 28°2.0 in52.8° 201219.7° 1960
April62° / 38°3.7 in57.4° 191541.5° 2018
May72° / 50°5.0 in70.6° 193454.7° 1935
June82° / 60°5.0 in78.5° 193364.0° 1945
July85° / 64°4.2 in84.5° 193669.1° 2009
August83° / 61°4.1 in80.4° 194766.2° 1915
September77° / 53°3.4 in71.8° 189758.2° 1896
October64° / 40°2.6 in63.1° 196340.3° 1925
November48° / 28°1.8 in49.2° 200128.6° 1991
December35° / 18°1.3 in35.8° 20238.3° 1983

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

Towns in Dallas County

Crime Radar: Waukee, Perry, Adel

Nearby counties