Since the rain last night missed us for the most part, I think it's worth taking a look at how early season dryness impacts corn development. Some years ago (unfortunately this now translates to a few decades ago) when I worked in Nebraska folks didn't worry much about the early season dryness and there was plenty of 7-ft corn which made pretty good yields (this being relative as 150 bu was pretty good). In any case, they generally didn't turn the irrigation on until June, whatever the weather.
Chad Lee and John Grove from the University of Kentucky posted an interesting article a couple of weeks ago on this. In essence, until V6, so long as the plants don't actually burn up, there's little impact from early season dryness. From that point on it starts to become a problem.
Aspects not covered in this article include things like outgrowing potential cutworm damage. Fortunately, while it seems like it would be an ideal year for cutworm damage, I haven't heard of any problems in Clinton County.
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