ST. LOUIS- If you noticed how high the humidity was this past July, you’re not the only one. The average dew point for July of 2025 was nearly 4-6 degrees above normal for the St. Louis area.

“That’s pretty abnormal usually you have peaks where you have several days three or four days with high humidity, High dew points but then usually it goes back closer to normal," said Jayson Gosselin, meteorologist with the National Weather Service.

A very wet April-through-July period led to the increased evapotranspiration of the corn crop this summer.

"Not only locally, but if you look regionally, Missouri, Illinois and areas points south, a lot of times we had a southerly wind component so he had abnormal moisture being advected, or moved from south to north, moving into the area and not moving

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