Concord Massachusetts Climate Data

Monthly Average Climate Data for Concord Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.6 °F35.3 °F3.69 in.
February18.3 °F38.2 °F3.33 in.
March25.9 °F45.7 °F4.44 in.
April36.2 °F58.4 °F4.14 in.
May46.4 °F68.8 °F3.66 in.
June55.8 °F77.5 °F4.22 in.
July61.5 °F83.4 °F3.64 in.
August60.2 °F82.0 °F3.8 in.
September52.1 °F75.0 °F3.71 in.
October40.8 °F62.7 °F4.83 in.
November31.3 °F51.6 °F3.89 in.
December23.1 °F41.1 °F4.67 in.
Annual39 °F60 °F48.02 in.

Climate Data for Concord 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