Is this weather normal in Lyon County?

Iowa · county records since 1895, through September 2026.

Weather › Iowa › Lyon County

Every one of the last 12 months ran warmer than usual in Lyon County. 7.9 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 52°, lows near 30°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +6.6°OctNov: +3.6°NovDec: +0.3°DecJan 2026: +1.2°JanFeb: +9.4°FebMar: +6.0°MarApr: +1.3°AprMay: +0.7°MayJun: +0.6°JunJul: +3.2°JulAug: +1.0°AugSep: +4.2°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: +0.0 inNovDec: -0.0 inDecJan 2026: -0.5 inJanFeb: -0.8 inFebMar: -0.8 inMarApr: +0.3 inAprMay: -0.8 inMayJun: -0.7 inJunJul: -1.3 inJulAug: -0.9 inAugSep: +4.7 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 Lyon County

MonthUsual high / lowUsual rainWarmestColdest
January25° / 7°0.7 in30.4° 2006-1.1° 1912
February30° / 12°0.8 in33.8° 2024-3.2° 1936
March43° / 24°1.5 in49.3° 201216.6° 1899
April58° / 34°3.0 in54.4° 191535.9° 2018
May70° / 47°4.0 in70.1° 193449.9° 1907
June80° / 58°4.8 in76.2° 193361.3° 1945
July84° / 62°3.4 in82.4° 193664.9° 1992
August81° / 59°3.2 in77.7° 194764.3° 1992
September74° / 50°3.2 in69.1° 193153.0° 1965
October60° / 37°2.3 in58.3° 196336.0° 1925
November44° / 24°1.3 in45.1° 200117.3° 1896
December30° / 13°0.9 in31.6° 20231.3° 1983

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

Towns in Lyon County

Nearby counties