Is this weather normal in Sweetwater County?

Wyoming · county records since 1895, through September 2026.

Weather › Wyoming › Sweetwater County

Sweetwater County is in extreme drought: NOAA's Palmer reading for September was -6.3. Every one of the last 12 months ran warmer than usual there.

This week

Usual for Oct 28 to Nov 3: highs near 49°, lows near 24°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +1.5°OctNov: +7.6°NovDec: +12.1°DecJan 2026: +4.4°JanFeb: +8.2°FebMar: +10.2°MarApr: +1.3°AprMay: +0.2°MayJun: +0.9°JunJul: +4.3°JulAug: +3.1°AugSep: +2.6°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: +0.3 inOctNov: -0.1 inNovDec: -0.2 inDecJan 2026: -0.3 inJanFeb: -0.3 inFebMar: -0.0 inMarApr: -0.1 inAprMay: -0.4 inMayJun: -0.4 inJunJul: +0.1 inJulAug: +0.3 inAugSep: +0.0 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 Sweetwater County

MonthUsual high / lowUsual rainWarmestColdest
January31° / 10°0.5 in28.1° 19533.3° 1949
February34° / 12°0.5 in31.3° 20264.6° 1903
March44° / 21°0.7 in43.0° 202617.3° 1917
April53° / 27°1.0 in46.3° 194332.1° 1920
May64° / 36°1.5 in57.0° 193442.9° 1917
June75° / 44°0.9 in65.7° 198852.4° 1908
July84° / 51°0.7 in71.9° 200359.6° 1993
August82° / 49°0.8 in68.5° 200359.4° 1968
September71° / 40°1.0 in60.1° 202246.1° 1912
October57° / 29°0.9 in49.5° 198834.4° 1919
November42° / 19°0.5 in37.6° 202519.0° 2000
December31° / 10°0.5 in32.6° 20256.9° 1895

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

Towns in Sweetwater County

Crime Radar: Rock Springs, Green River

Nearby counties