The town of Truro has a mild summer Humid continental climate (Dfb). The plant hardiness zone is 7a, with an average annual extreme minimum air temperature of 4.0 °F (−15.6 °C). The average seasonal (Nov–Apr) snowfall total is around 30 in (76 cm). The average snowiest month is February, which corresponds to the annual peak in nor'easter activity.
The town of Truro has a mild summer Humid continental climate (Dfb) The plant hardiness zone is 7a with an average annual extreme minimum air temperature of 40 °F (−156 °C) The average seasonal (Nov–Apr) snowfall total is around 30 in (76 cm) The average snowiest month is February which corresponds to the annual peak in nor'easter activity