Is this weather normal in Boone County?

Indiana · county records since 1895, through September 2026.

Weather › Indiana › Boone County

Boone County just had its 2nd-warmest September in 132 years, +5° against the usual. Boone County has warmed about 0.5° per decade since 1970.

This week

Usual for Oct 28 to Nov 3: highs near 57°, lows near 38°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +3.1°OctNov: +0.7°NovDec: -2.5°DecJan 2026: -3.2°JanFeb: +1.8°FebMar: +7.5°MarApr: +6.1°AprMay: -2.3°MayJun: -0.6°JunJul: +1.7°JulAug: +0.4°AugSep: +5.4°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: -1.6 inOctNov: -1.6 inNovDec: -1.0 inDecJan 2026: -1.8 inJanFeb: -1.2 inFebMar: +3.1 inMarApr: +0.2 inAprMay: +0.1 inMayJun: +1.5 inJunJul: -1.4 inJulAug: +5.9 inAugSep: -1.1 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 Boone County

MonthUsual high / lowUsual rainWarmestColdest
January34° / 18°2.8 in38.4° 20067.9° 1977
February39° / 22°2.3 in41.0° 201712.5° 1978
March50° / 30°3.1 in54.3° 201223.3° 1960
April62° / 40°4.2 in57.2° 202640.5° 1907
May72° / 51°4.6 in69.7° 201853.0° 1924
June81° / 60°4.9 in76.6° 193463.9° 1928
July83° / 63°4.4 in80.6° 193667.5° 2014
August82° / 61°3.4 in77.6° 190065.1° 1927
September77° / 54°3.2 in71.0° 192557.3° 1918
October65° / 43°3.3 in60.8° 190044.1° 1925
November50° / 33°3.4 in48.6° 200132.9° 1951
December39° / 24°2.8 in40.8° 201516.6° 1963

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

Towns in Boone County

Crime Radar: Zionsville, Lebanon, Whitestown

Nearby counties