The weekly Degree Days map [1] shows base-50° F degree day accumulations that are kept throughout the growing season beginning May 1. For corn and soybeans planted earlier, use the table to find accumulations prior to April 15, April 20, and April 25 for your area. Adjust map values throughout the season according to planting date.
Degree day accumulations the last two weeks of April were approximately 80 percent of long-term averages statewide.
Degree day accumulations before May 1, 1997
| Crop reporting district | April 15-May 1 | April 20-May 1 | April 25-May 1 |
|---|---|---|---|
| Northwest | 95 | 72 | 47 |
| North central | 102 | 78 | 53 |
| Northeast | 96 | 77 | 53 |
| West central | 106 | 73 | 51 |
| Central | 107 | 77 | 54 |
| East central | 108 | 85 | 60 |
| Southwest | 107 | 69 | 54 |
| South central | 101 | 71 | 55 |
| Southeast | 111 | 85 | 61 |
This article originally appeared on page 75 of the IC-478(10) -- May 26, 1997 issue.
