Average humidity in Prospect Heights (IL)

On this page you find more information about the monthly relative humidity over the year in Prospect Heights (Illinois), the United States of America.

Prospect Heights shows variation in the level of humidity throughout the year. The highest humidity is noted duing December, it reaches up to 76%, which is categorized as high.

On the other hand, the lowest humidity is recorded in May, with levels falling to 64%.

The average humidity in Prospect Heights is approximately 69%, which is high.

Humidity is an essential factor in how you experience temperature. During the warmest month, July, the temperature is around 29°C. When this period is accompanied by high humidity, it results in a higher perceived temperature. This can cause greater discomfort, while in winter it can make the air feel much colder, adding to the cooler temperatures. Check out our detailed temperature page for more information.