Average monthly wind speed in Willowbrook (IL)

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

The mean wind speed in Willowbrook over the year fluctuates between 4 m/s (8 knots) and 6 m/s (12 knots).

In June, July, August and September you will have an average wind speed of 4 m/s (8 knots), indicating a noticeable breeze on most days. Daily variations can range from very light winds to stronger gusts. On an average day with 4 m/s (8 knots), small tree branches sway steadily. This speed is equivalent to 14.4 kilometers per hour or 8.9 miles per hour. While the climate generally allows for outdoor activities, occasional gusts may affect activities such as ball games. It can also produce white-capped waves over water.

In contrast, wind speeds average 6 m/s (12 knots) during January, March and April; these months are known as the windiest. Most days are quite windy, with small branches moving and occasional difficulty walking against the wind. Loose objects may be blown away. The measurement represents 21.6 km/h or 13.4 mph. There may still be stronger gusts or calmer moments, but strong winds are typical.

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