September will go in the record books as warmer than normal for Iowa, with many locations in the state averaging at least two to four degrees above normal. An overall above-normal temperature trend has occurred in Iowa since last May, although July and August temperatures were fairly close to normal.

September rainfall averaged above normal in most of Iowa, and in some cases among the greatest amounts recorded during September.

Several reporting stations in the state finished the month with more than 11 inches, amounts  four to five times the normal for September. Most of this rain fell during the first week of September, then again from around the 18th of the month into...