Weston Massachusetts Climate Data

Monthly Average Climate Data for Weston Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.6 °F35.8 °F3.65 in.
February19.2 °F38.4 °F3.21 in.
March26.6 °F45.8 °F4.34 in.
April36.8 °F58.3 °F4.07 in.
May46.8 °F68.7 °F3.79 in.
June56.1 °F77.3 °F4.28 in.
July62.1 °F83.3 °F3.56 in.
August60.7 °F81.9 °F3.96 in.
September53.0 °F75.0 °F3.7 in.
October41.7 °F62.8 °F4.75 in.
November32.3 °F51.7 °F3.91 in.
December24.0 °F41.4 °F4.55 in.
Annual39.7 °F60 °F47.77 in.

Climate Data for Weston Massachusetts

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
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 ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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