Southwick Massachusetts Climate Data

Monthly Average Climate Data for Southwick Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.7 °F34.4 °F3.56 in.
February18.0 °F37.2 °F3.27 in.
March26.2 °F45.6 °F4.17 in.
April37.0 °F59.1 °F4.28 in.
May47.6 °F70.4 °F3.81 in.
June56.8 °F78.5 °F4.83 in.
July62.2 °F83.7 °F4.31 in.
August60.3 °F81.8 °F4.27 in.
September52.6 °F74.5 °F4.73 in.
October41.3 °F62.3 °F5.43 in.
November31.8 °F50.7 °F3.86 in.
December23.2 °F39.8 °F4.78 in.
Annual39.5 °F59.8 °F51.3 in.

Climate Data for Southwick 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 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation