Westfield Massachusetts Climate Data

Monthly Average Climate Data for Westfield Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.0 °F34.8 °F3.42 in.
February18.4 °F37.5 °F3.05 in.
March26.8 °F45.8 °F4.04 in.
April37.7 °F59.3 °F4.21 in.
May48.2 °F70.6 °F3.64 in.
June57.3 °F78.8 °F4.54 in.
July62.7 °F84.1 °F4.15 in.
August60.9 °F82.2 °F4.3 in.
September53.2 °F75.0 °F4.62 in.
October41.8 °F62.6 °F5.35 in.
November32.2 °F50.9 °F3.7 in.
December23.5 °F40.1 °F4.58 in.
Annual40 °F60.1 °F49.6 in.

Climate Data for Westfield Massachusetts

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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