Pollen counts may be indicative of the symptoms experienced by a broad population. Several studies have shown that when the pollen counts increase, so do allergy symptoms in the allergic population. Pollen counts tend to be the highest early in the morning on warm, dry, breezy days and the lowest during chilly, wet periods. This count is useful as a general guide for when it may be wise for you to stay indoors and avoid contact with that pollen.  

The Winnebago County Health Department Laboratory begins the annual Pollen Count Report on Monday, April 14, 2014 and will continue until the first hard frost or approximately the second week of October. The daily pollen counts consist of Mold spores, Tree, Grass and Weed pollen.

In 2013, the Winnebago County Health Department adopted the NAB (The National Allergy Bureau) scale for measurement of tree, grass and weed pollen and mold spore levels, as shown below: 

The pollen count report will be listed Monday through Friday (after 10:30 am) on the Winnebago County Health Department’s website at The pollen count is also recorded on the pollen count hotline at 815-720-4140. If you have questions on the daily pollen count, please call 815-720-4100, or contact the Environmental Health Laboratory at 815- 720-4142.