Northumberland New York Climate Data

Monthly Average Climate Data for Northumberland New York

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.3 °C-0.3 °C84.33 mm
February-9.7 °C1.4 °C63.5 mm
March-4.7 °C6.4 °C83.57 mm
April1.9 °C14.4 °C94.49 mm
May8.2 °C21.2 °C92.2 mm
June13.2 °C25.7 °C115.82 mm
July15.6 °C28.3 °C115.06 mm
August14.9 °C27.2 °C107.95 mm
September10.7 °C23.2 °C97.54 mm
October4.6 °C16 °C109.47 mm
November-0.9 °C8.9 °C85.09 mm
December-5.8 °C2.6 °C95 mm
Annual3.1 °C14.6 °C1144.02 mm

Climate Data for Northumberland New York

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 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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