Growing Degree Days - YOY Comparison

Buchanan County, IA
AS OF 6/11/12 

Month    Current Year   Previous Year
Jun             171                  588
May            360                  415
Apr             107                  144
Total          638                 1,147

Our Reply: We need approx. 500 heat units to be on the same pace as last year by 6/30. Any thoughts or feedback on this year compared to last? Please send your insight to prburmeister@gmail.com