Although the rain hasn't been plentiful, it's been enough to support the stalk growth through the last two weeks of continued warm weather. The seventh week contained 34% more growing degree days than normal and saw most of the plants add about 19 inches to top out at 58 inches on June 22.
The eighth week was not as warm as the seventh, accumulating about 18% more growing degree days than average, but the corn hit its stride and gained 32 inches to hit 90 inches tall by the end of the week. In the picture above, it's no longer possible to see trees or buildings across the highway, although history indicates the corn stalks are probably not quite done growing. One bit of evidence is the lack of tassels poking out of the top of the plant. Once those appear, the stalk growth is nearly complete, and the plants get down to the business of producing a crop. But that will come later. Now I've got a couple of charts to illustrate how the crop this year is doing compared to the four other years for which I have data.
I wonder how this data would look if we compared growth to growing degree days? I suspect a fairly strong correlation would appear, so I may just have to plot that data. If it looks interesting, you can rest assured you'll see the results here.