The preliminary statewide average April temperature was 58.8 degrees, 6.2 degrees above the 1991–2020 normal, 7.3 degrees above the 20th Century average, 6.0 degrees above the most recent 30-year average. Last month was the warmest April on record in Illinois. The preliminary statewide total April precipitation was 6.37 inches, 2.13 inches above the 1991–2020 normal, […]
Category: Flooding
July Was H-O-T T-O G-O
The preliminary statewide average July temperature was 78.3 degrees, 2.9 degrees above the 1991–2020 average and tied for 16th warmest on record going back to 1895. The preliminary statewide total July precipitation was 5.95 inches, 1.89 inches above the 1991–2020 average and the 10th wettest on record. Data are provisional and may change slightly over […]
Staying Ahead of Intense Precipitation in Illinois
The Prairie State is no stranger to intense precipitation and consequential flooding. However, the frequency and intensity of rainfall have been increasing in recent decades, putting a renewed focus on the information, warning systems, planning and preparation needed to protect Illinois from the threat of intense rainfall. Intense Rainfall Background The philosopher Luke Bryan argued, […]
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2024 Weather Was Very Warm and Wild
Illinois was both warmer and wetter than the 1991–2020 normal in 2024. The statewide average annual temperature was 55.5 degrees, 2.9 degrees above normal and 2nd warmest on record statewide. Statewide average total precipitation in 2024 was 40.69 inches, 0.05 inches above normal and the 43rd wettest year on record. The Second Warmest Year on […]