Is this weather normal in Oglala Lakota County?

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

Weather › South Dakota › Oglala Lakota County

Oglala Lakota County is in extreme drought: NOAA's Palmer reading for September was -5.2. 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 29°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +4.0°OctNov: +4.9°NovDec: +8.0°DecJan 2026: +3.4°JanFeb: +9.9°FebMar: +8.7°MarApr: +1.3°AprMay: +3.0°MayJun: +0.3°JunJul: +5.7°JulAug: +2.9°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: -0.7 inOctNov: -0.2 inNovDec: -0.1 inDecJan 2026: -0.3 inJanFeb: -0.5 inFebMar: -0.7 inMarApr: -1.1 inAprMay: -1.4 inMayJun: +0.1 inJunJul: -0.3 inJulAug: -0.2 inAugSep: +0.1 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 Oglala Lakota County

MonthUsual high / lowUsual rainWarmestColdest
January37° / 14°0.4 in37.4° 20065.3° 1937
February40° / 16°0.6 in39.9° 19542.3° 1936
March51° / 25°1.1 in49.8° 201219.6° 1899
April59° / 33°2.2 in53.5° 194635.6° 1920
May69° / 43°3.3 in66.7° 193448.7° 1917
June80° / 53°3.3 in74.9° 198858.2° 1945
July88° / 60°2.3 in81.9° 193665.2° 1915
August87° / 58°1.9 in77.9° 198365.3° 1915
September78° / 48°1.4 in70.3° 202450.7° 1965
October62° / 35°1.6 in58.2° 196336.6° 1925
November48° / 24°0.6 in45.2° 199917.3° 1985
December38° / 15°0.5 in34.6° 20255.1° 1983

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

Towns in Oglala Lakota County

Nearby counties