Group: sci.bio.entomology.misc · Group Profile · Search for Chicago Weather in sci.bio.entomology.misc
Author: Duh_OZ
Date: May 4, 2007 12:40
...his formula by comparing more than 100 years of research on cicada outbreaks and historical weather data. The formula -- E = (19.465 - t)/0.5136, where E = emergence start date in May and t = average April temperatures in Celsius -- is keyed to what kind of weather Chicago had last month. Using the formula in 2004, he was able to accurately predict the emergence in Cincinnati, according ...
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