The Iowa Environmental Mesonet (IEM) collects environmental data from cooperating members with observing networks. The data are stored and made available on this website.

IEM Daily Feature

Year Difference in Leaves

Posted: 21 Oct 2021 05:34 AM, Views: 236
Tags:   webcam  
The perceived lateness of the fall turn in leaf color this year has been noticeable and when one considers the amount of snowfall we had already by this date last year, it is even more noticeable. The featured image presents a side by side of images from the ISU AMS web camera in Ames atop the ISU Memorial Union. The difference between 2020 and this year is apparent with much more green yet present this year. We have yet to see freezing temperatures in central Iowa and along with the warmth this month has keep things a big greener later into the year than average.
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Cascade, IA Webcam:
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Soil Temperatures

Data from the Iowa State Soil Moisture Network is found on this website and daily soil temperature averages are used to produce the highlighted analysis.


Besides point observations of precipitation, the IEM also processes gridded rainfall products made available by NOAA. This information is archived and made available in GIS ready formats.

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ISU Agronomy
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