Chatham New York Climate Data

Monthly Average Climate Data for Chatham New York

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.1 °F33.0 °F2.78 in.
February16.6 °F36.1 °F2.28 in.
March24.7 °F44.9 °F2.97 in.
April35.5 °F58.9 °F3.16 in.
May46.3 °F70.6 °F3.63 in.
June55.4 °F78.1 °F4.03 in.
July60.3 °F82.8 °F3.99 in.
August58.8 °F81.1 °F3.74 in.
September50.9 °F73.9 °F4.67 in.
October39.9 °F61.4 °F4.11 in.
November30.9 °F49.3 °F2.9 in.
December22.1 °F38.0 °F3.57 in.
Annual38 °F59 °F41.83 in.

Climate Data for Chatham New York

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year