The preliminary statewide average September temperature was 68.8 degrees, 2.0 degrees above the 1991–2020 average and tied for the 27th warmest on record going back to 1895. The preliminary statewide total September precipitation was 2.60 inches, 0.75 inches below the 1991–2020 average and the 41st driest on record. Data are provisional and may change slightly […]
Read More from Fall Begins with a Warm and Very Dry September
December temperatures were well above the long-term average across the state, breaking dozens of local daily maximum and minimum temperature records. The preliminary statewide December average temperature was 35.2 degrees, about 5 degrees above the 1981-2010 normal and the 18th warmest on record. Preliminary data show December was drier than average for most of the […]
Read More from Warm, Dry December Concludes a Cold, Wet Year
August After months of exceptionally warm temperatures and drought, Illinois finally experienced temperatures and precipitation closer to normal in August. The statewide average temperature for August was 73.5 degrees, just 0.1 degree below normal. That’s about as “normal” as you can get. The statewide average precipitation for August was 3.4 inches, which is 95 percent […]
Read More from August Near-Normal But Summer Hot, Dry for Illinois
August After months of exceptionally warm temperatures and drought, Illinois finally experienced temperatures and precipitation closer to normal in August. The statewide average temperature for August was 73.5 degrees, just 0.1 degree below normal. That’s about as “normal” as you can get. The statewide average precipitation for August was 3.4 inches, which is 95 percent […]
Read More from August Near-Normal But Summer Hot, Dry for Illinois