In what seems like an all too common occurrence, the Stateline again managed to miss out on any sort of substantial rainfall with a cold frontal passage Monday. While earlier model estimates optimistically forecast up to 3/4" of rainfall with this system, as has been the case for the past 6 weeks or longer, the models grossly overestimated the amount of actual rain that fell. In the end, exactly 0.02" fell at the Chicago-Rockford International Airport, thus expanding our deficit for the month further! So far this month, we've seen just 5.5% of our normal rainfall, and all signs point to this trend worsening before it gets better.
Furthermore, our deficit since May 1st has now exceeded four inches, and with a few more dry days in store, our deficit for the year will also eclipse the four inch mark.
Many have begun to draw comparisons between this year and the dreadful drought-stricken summer of 1988, a summer that produced 46 days with 90°+ temperatures, and 7 days in which the mercury peaked at 100° or above.
Precipitation-wise, we're running a bit wetter than 1988, but by less than an inch for the year, and less than a half an inch since May 1. Perhaps more compelling is the fact that we're running substantially ahead of 1988's pace when it comes to 90° heat. Thus far, we've tallied 7 days with 90s, compared to just 4 by this point in 1988. With 90s in the forecast for 4 of the next 7 days, it's possible we could expand that gap further!