Michigan, Illinois and Indiana
As of 12:01 AM, September 2nd, 2010
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Latest Updates & Notes
April 14th, 2010Crabgrass Preemergence Timing
The GDD model for crabgrass preemergence application timing is starting to expire for locations in central and southern Michigan. However, soil temperatures are still in the low 50s. This means that effective preemergence applications can still be made.
March 31st, 2010We've been waiting for a year like this.
The whole idea of heat accumulation units or growing degree-days is that you can account for variability in weather patterns between years. Northern locations are experiencing a very early spring. A little moisture and things will be off and running.
March 15th, 2010Flashback Tool Upgrade!
The very popular Flashback Tool is now available for Illinois and Indiana. It's also available from the regional-view landing page. Use this tool to see what the map looked like one year ago today. Enjoy!
February 16th, 2010Up and running.
Weather data tracking for 2010 started yesterday. We are working on some system-wide improvements to GDDTracker. We do not expect these improvements to interrupt our service. Lot's of snow on the ground for most of the coverage area. Stay tuned../
January 18th, 2010Things are cool right now.
GDDTracker will calculations begin on February 15th. Thanks to everyone that used the system in 2009. We appreciate the comments and suggestions. Best wishes for a successful 2010.
January 4th, 2010Where to the models come from?
The growing degree day models used at GDDTracker have been developed by various university researchers. Check out the About section of the web site to learn more about individual models.
