Hamilton Massachusetts Climate Data

Monthly Average Climate Data for Hamilton Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.7 °F36.1 °F3.83 in.
February21.3 °F38.3 °F3.54 in.
March28.3 °F44.7 °F4.83 in.
April38.1 °F56.2 °F4.23 in.
May47.8 °F65.8 °F3.62 in.
June57.5 °F75.1 °F4.26 in.
July63.2 °F81.2 °F3.51 in.
August62.1 °F79.8 °F3.41 in.
September54.9 °F72.8 °F3.78 in.
October43.9 °F61.5 °F4.78 in.
November34.6 °F51.2 °F3.98 in.
December26.1 °F41.6 °F4.86 in.
Annual41.5 °F58.7 °F48.63 in.

Climate Data for Hamilton Massachusetts

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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