Is this weather normal in Fall River County?

South Dakota · county records since 1895, through September 2026.

Weather › South Dakota › Fall River County

Fall River County is in extreme drought: NOAA's Palmer reading for September was -5.8. Every one of the last 12 months ran warmer than usual there.

This week

Usual for Oct 28 to Nov 3: highs near 55°, lows near 28°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +3.8°OctNov: +5.2°NovDec: +8.0°DecJan 2026: +4.4°JanFeb: +8.5°FebMar: +9.2°MarApr: +1.4°AprMay: +2.2°MayJun: +0.3°JunJul: +5.9°JulAug: +3.1°AugSep: +4.4°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: 0.0 inNovDec: -0.2 inDecJan 2026: -0.3 inJanFeb: -0.4 inFebMar: -0.8 inMarApr: -0.7 inAprMay: -1.3 inMayJun: -0.6 inJunJul: +0.3 inJulAug: -0.3 inAugSep: +0.8 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 Fall River County

MonthUsual high / lowUsual rainWarmestColdest
January38° / 13°0.4 in35.9° 20065.2° 1937
February41° / 15°0.5 in40.0° 19543.7° 1936
March52° / 24°1.0 in48.1° 201220.1° 1899
April60° / 32°2.0 in52.4° 194635.8° 1920
May69° / 42°3.0 in66.2° 193448.1° 2019
June80° / 52°2.9 in73.6° 198857.8° 1951
July89° / 59°2.3 in81.4° 193665.0° 1915
August87° / 56°1.6 in77.3° 193765.4° 1915
September78° / 46°1.4 in69.3° 202450.0° 1965
October63° / 33°1.4 in56.7° 196336.6° 1925
November49° / 23°0.5 in44.9° 199918.3° 1985
December39° / 14°0.4 in34.2° 20256.2° 1983

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

Towns in Fall River County

Crime Radar: Hot Springs

Nearby counties