Is this weather normal in Big Horn County?

Wyoming · county records since 1895, through September 2026.

Weather › Wyoming › Big Horn County

Big Horn County is in extreme drought: NOAA's Palmer reading for September was -6.3. 11 of the last 12 months ran warmer than usual there.

This week

Usual for Oct 28 to Nov 3: highs near 48°, lows near 25°

That is the 1991 to 2020 average for these dates in Big Horn 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: +6.8°NovDec: +10.2°DecJan 2026: +6.3°JanFeb: +9.8°FebMar: +7.9°MarApr: +0.4°AprMay: +1.5°MayJun: -1.2°JunJul: +5.7°JulAug: +1.8°AugSep: +3.1°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: +1.3 inOctNov: -0.5 inNovDec: +0.5 inDecJan 2026: -0.4 inJanFeb: -0.4 inFebMar: -0.3 inMarApr: -0.0 inAprMay: -1.0 inMayJun: -0.5 inJunJul: +0.1 inJulAug: -0.1 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 Big Horn County

MonthUsual high / lowUsual rainWarmestColdest
January31° / 11°0.7 in29.8° 1953-2.8° 1979
February35° / 13°0.8 in33.9° 19542.2° 1899
March46° / 22°0.9 in42.2° 202617.0° 1899
April54° / 29°1.4 in48.9° 191532.6° 1975
May63° / 39°2.1 in59.1° 193444.6° 1916
June74° / 47°1.7 in69.1° 198852.8° 1951
July83° / 54°0.9 in74.2° 202659.5° 1993
August81° / 52°0.7 in70.8° 198360.3° 1927
September70° / 43°1.4 in61.6° 199844.0° 1965
October55° / 31°1.3 in50.0° 196331.8° 1925
November42° / 20°0.8 in39.7° 199912.7° 1896
December32° / 11°0.7 in33.0° 18965.4° 1983

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

Towns in Big Horn County

Crime Radar: Powell

Nearby counties