Is this weather normal in Roberts County?

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

Weather › South Dakota › Roberts County

10 of the last 12 months ran warmer than usual in Roberts County. Roberts County just had its 8th-warmest September in 132 years, +4° against the usual.

This week

Usual for Oct 28 to Nov 3: highs near 48°, lows near 28°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +6.2°OctNov: +4.8°NovDec: -1.1°DecJan 2026: +0.2°JanFeb: +8.9°FebMar: +4.9°MarApr: -0.9°AprMay: +0.5°MayJun: +0.6°JunJul: +3.7°JulAug: +0.5°AugSep: +4.3°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: -1.4 inOctNov: +0.1 inNovDec: -0.1 inDecJan 2026: -0.5 inJanFeb: -0.3 inFebMar: -0.5 inMarApr: -0.1 inAprMay: -1.2 inMayJun: -1.4 inJunJul: +3.3 inJulAug: -2.1 inAugSep: +0.2 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 Roberts County

MonthUsual high / lowUsual rainWarmestColdest
January21° / 3°0.7 in24.9° 2006-5.1° 1912
February25° / 7°0.7 in29.8° 2024-9.0° 1936
March38° / 19°1.1 in42.3° 201212.3° 1899
April54° / 32°2.3 in51.8° 191532.6° 2013
May68° / 45°3.0 in67.3° 193445.3° 1907
June77° / 56°3.9 in74.0° 193359.1° 1969
July82° / 60°3.8 in80.7° 193662.8° 1992
August80° / 57°2.6 in75.3° 198363.1° 1897
September72° / 49°2.5 in66.8° 202448.4° 1965
October57° / 36°2.4 in56.2° 196334.2° 1925
November40° / 22°0.9 in41.6° 200112.6° 1896
December26° / 9°0.8 in29.9° 2023-1.4° 1983

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

Towns in Roberts County

Nearby counties