Is this weather normal in Ontario County?

New York · county records since 1895, through September 2026.

Weather › New York › Ontario County

Ontario County has warmed about 0.5° per decade since 1970. September 2026 averaged 62.6° there, right at the usual for September (33rd warmest of 132).

This week

Usual for Oct 28 to Nov 3: highs near 53°, lows near 37°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +0.8°OctNov: -1.4°NovDec: -4.4°DecJan 2026: -2.8°JanFeb: -2.9°FebMar: +4.6°MarApr: +4.3°AprMay: -2.3°MayJun: +0.7°JunJul: +1.3°JulAug: -0.5°AugSep: +0.7°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: 0.0 inOctNov: -0.2 inNovDec: -0.2 inDecJan 2026: +0.1 inJanFeb: -0.1 inFebMar: +1.8 inMarApr: +2.7 inAprMay: +0.9 inMayJun: -0.4 inJunJul: +0.1 inJulAug: -1.6 inAugSep: +0.3 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 Ontario County

MonthUsual high / lowUsual rainWarmestColdest
January32° / 17°2.2 in34.2° 193211.8° 1918
February34° / 18°1.9 in33.8° 201710.2° 1934
March42° / 24°2.5 in45.8° 201221.6° 1960
April56° / 35°2.9 in51.6° 192137.2° 1926
May68° / 46°3.2 in63.2° 191147.7° 1917
June76° / 55°3.7 in71.2° 194960.2° 1926
July80° / 60°3.9 in76.0° 192165.4° 1992
August79° / 59°3.5 in73.6° 201662.7° 1927
September72° / 52°3.4 in67.6° 196155.0° 1918
October60° / 41°3.6 in57.6° 194741.3° 1925
November48° / 32°2.6 in46.3° 193131.9° 1933
December37° / 24°2.5 in40.8° 201515.5° 1989

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

Towns in Ontario County

Crime Radar: Canandaigua

Nearby counties