The Weather Front On-Line (May 2010)
Based on preliminary data, the statewide average temperature for Illinois in April was 58.4 degrees, 6.2 degrees above normal and the warmest April on record. This beats the old record of 58.2 degrees set in 1955. Official statewide average temperature records go back to 1895. The warm temperatures in April were not unique to Illinois – the entire Midwest was much above normal.
A changeable weather pattern is ahead in the days ahead.
As a warm front approaches from the southwest, a few showers and thunderstorms will occasionally overspread area during Friday morning as an intensifying low pressure system moves across the Midwest.
Across the Corn Belt, cool, unsettled weather across northwestern portions of the region is slowing fieldwork. Dry, mild weather elsewhere is favoring a rapid pace of summer crop planting and emergence.