Olean New York Climate Data

Monthly Average Climate Data for Olean New York

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.8 °C-0.1 °C71.37 mm
February-9.5 °C1.3 °C51.82 mm
March-5.9 °C6.2 °C68.83 mm
April-0.1 °C13.6 °C85.6 mm
May6.1 °C20.4 °C93.47 mm
June10.9 °C24.7 °C113.54 mm
July13.3 °C26.7 °C110.24 mm
August12.9 °C25.9 °C103.63 mm
September9.1 °C22.3 °C99.06 mm
October3.1 °C15.5 °C91.44 mm
November-1.7 °C8.4 °C75.18 mm
December-6 °C2.6 °C77.98 mm
Annual1.9 °C14 °C1042.16 mm

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 : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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