Olean New York Climate Data

Monthly Average Climate Data for Olean New York

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.4 °F31.8 °F2.81 in.
February14.9 °F34.3 °F2.04 in.
March21.4 °F43.2 °F2.71 in.
April31.8 °F56.4 °F3.37 in.
May42.9 °F68.8 °F3.68 in.
June51.6 °F76.5 °F4.47 in.
July55.9 °F80.1 °F4.34 in.
August55.2 °F78.6 °F4.08 in.
September48.3 °F72.1 °F3.9 in.
October37.5 °F59.9 °F3.6 in.
November28.9 °F47.2 °F2.96 in.
December21.2 °F36.6 °F3.07 in.
Annual35.3 °F57.1 °F41.03 in.

Climate Data for Olean New York

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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