The preliminary statewide average January temperature was 23.5 degrees, 3.2 degrees below the 1991-2020 average and tied for the 41st coldest on record going back to 1895. The preliminary statewide average total January precipitation was 1.19 inches, 1.12 inches below the 1991-2020 average and tied for the 28th driest on record statewide. Data are provisional […]
Illinois was both warmer and wetter than the 1991–2020 normal in 2025. The statewide average annual temperature was 53.6 degrees, 1.0 degree above normal and the 18th warmest year on record statewide. Statewide average total precipitation in 2025 was 32.94 inches, 7.8 inches below normal and the 23rd driest year on record statewide. Another Very […]
The preliminary statewide average December temperature was 29.1 degrees, 2.5 degrees below the 1991–2020 average and tied for 53rd coolest on record going back to 1895. The preliminary statewide average total December precipitation was 1.50 inches, 0.93 inches above the 1991–2020 average and the 29th driest on record statewide. Data are provisional and may change […]
The preliminary statewide average November temperature was 43.6 degrees, 1.4 degrees above the 1991-2020 average and the 32nd warmest November on record. The preliminary statewide average total November precipitation was 2.14 inches, 0.94 inches below the 1991-2020 average and the 45th driest on record statewide. Data are provisional and may change slightly over time. Mild […]
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