Accumulated base: 50 F degree days and departure from normal--May 1 through July 22, 2007.
Iowans have experienced a range of weather conditions that cover most bases so far in 2007. If you want an excessively wet spring followed by a remarkably dry June and early July--try southwest Iowa. So you say you want a dry spring coupled with excessive rainfall in mid-season? Then east-central Iowa might be your cup of tea. And if you want dry followed by more dry--northwest Iowa can offer that. The rest of the state falls somewhere in the great in-between. What this means is that agronomists have a range of conditions with slightly different issues to deal with depending on local conditions. But as is usually true in mid- to late summer, without regard to where you are, rainfall and relatively cool temperatures will benefit anyone anywhere.
Rich Pope is an extension program specialist working with the Iowa State University Corn and Soybean Initiative.
This article originally appeared on page 238 of the IC-498(20) -- July 23, 2007 issue.