Is this weather normal in Yellowstone County?

Montana · county records since 1895, through September 2026.

Weather › Montana › Yellowstone County

11 of the last 12 months ran warmer than usual in Yellowstone County. Yellowstone County has warmed about 0.4° per decade since 1970.

This week

Usual for Oct 28 to Nov 3: highs near 52°, lows near 28°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +1.7°OctNov: +5.6°NovDec: +6.7°DecJan 2026: +7.9°JanFeb: +8.7°FebMar: +6.3°MarApr: +0.2°AprMay: +2.9°MayJun: -2.1°JunJul: +5.8°JulAug: +1.2°AugSep: +2.4°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: +1.0 inOctNov: -0.2 inNovDec: +0.6 inDecJan 2026: -0.5 inJanFeb: -0.1 inFebMar: +0.3 inMarApr: -0.8 inAprMay: -1.0 inMayJun: -0.6 inJunJul: +0.3 inJulAug: +0.0 inAugSep: +1.5 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 Yellowstone County

MonthUsual high / lowUsual rainWarmestColdest
January36° / 14°0.5 in37.0° 2006-2.4° 1916
February39° / 17°0.5 in39.4° 1991-0.9° 1936
March49° / 24°0.9 in45.6° 201219.7° 1912
April57° / 32°1.7 in53.5° 191536.6° 1975
May67° / 42°2.5 in63.1° 193448.5° 1903
June77° / 50°2.4 in73.5° 198855.7° 1951
July87° / 56°1.3 in78.6° 193661.4° 1993
August86° / 54°0.9 in74.9° 198363.8° 1974
September74° / 45°1.3 in65.7° 199846.5° 1965
October59° / 34°1.4 in53.3° 196335.3° 1925
November46° / 23°0.6 in44.3° 194914.7° 1985
December36° / 16°0.5 in38.6° 18965.0° 1983

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

Towns in Yellowstone County

Crime Radar: Billings, Laurel

Nearby counties