Average monthly wind speed in Chicago (IL)

Here you can view the typical wind conditions throughout the year in Chicago, (Illinois), the United States of America.

These figures come from monthly climatological averages showing that Chicago sees peak wind speeds of 6 m/s (12 knots) during its windiest period and minimum speeds of 4 m/s (8 knots) during its calmest season.

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.

The windiest time of year, January, March and April sees average wind speeds of 6 m/s (12 knots). This means most days have strong breezes that make entire trees sway and make umbrellas difficult to control. Wind pressure is clearly felt. The speed translates to 21.6 kilometers per hour or 13.4 miles per hour. While some moments are calmer or more intense, windy conditions dominate this period.

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