Average monthly wind speed in Waltham (MA)

The mean monthly wind speed over the year in Waltham (Massachusetts), the United States of America.

These figures come from monthly climatological averages showing that Waltham sees peak wind speeds of 7 m/s (14 knots) during its windiest period and minimum speeds of 5 m/s (10 knots) during its calmest season.

An average wind speed of 5 m/s (10 knots) in June, July, August and September means the wind is quite constant and noticeable for much of the month. There may still be stronger gusts or calmer moments, but windy conditions are the norm. Larger branches would start swaying, and dust, leaves, and small objects would often blow around.

For outdoor activities, you’d likely feel the wind frequently pushing against you. It could make, for example, running or cycling more tiring. Still, it's not so strong that it becomes uncomfortable. The average speed is around 18 km/h or 11 mph. At this speed, wind- and kitesurfing become very enjoyable.

The windiest period, January, February, March and December has average wind speeds of 7 m/s (14 knots). This means typical days feature strong gusts that create resistance when walking and make large trees sway noticeably. Wind becomes a constant factor. The speed translates to 25.2 kilometers per hour or 15.7 miles per hour. While intensity varies throughout the day, consistently strong winds are the norm.

For more detailed information about Waltham’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Waltham climate page.