Arlington Massachusetts Climate Data

Monthly Average Climate Data for Arlington Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.9 °F36.5 °F4.01 in.
February20.5 °F39.1 °F3.65 in.
March27.7 °F46.0 °F4.85 in.
April38.0 °F58.0 °F4.33 in.
May48.0 °F68.3 °F3.7 in.
June57.5 °F77.4 °F4.23 in.
July63.3 °F83.2 °F3.79 in.
August61.9 °F81.6 °F3.83 in.
September54.5 °F74.6 °F3.86 in.
October43.1 °F62.7 °F4.87 in.
November33.7 °F52.2 °F4.08 in.
December25.3 °F42.1 °F4.89 in.
Annual41 °F60.1 °F50.09 in.

Climate Data for Arlington Massachusetts

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
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