Ashburnham Massachusetts Climate Data

Monthly Average Climate Data for Ashburnham Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.4 °F30.3 °F3.51 in.
February13.8 °F33.5 °F3.24 in.
March21.3 °F40.9 °F4.3 in.
April32.7 °F54.2 °F4.05 in.
May43.1 °F65.6 °F3.98 in.
June52.5 °F74.0 °F4.26 in.
July58.1 °F79.1 °F4.0 in.
August56.2 °F77.6 °F4.11 in.
September49.1 °F70.4 °F4.15 in.
October38.2 °F57.6 °F5.04 in.
November28.8 °F46.2 °F3.79 in.
December19.5 °F35.7 °F4.47 in.
Annual35.5 °F55.4 °F48.9 in.

Climate Data for Ashburnham Massachusetts

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 11 - Jun. 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year