Illinois State Climatologist Jim Angel has his annual review of the state's weather for last year. Some highlights:
Based on the latest data, the statewide average temperature for 2013 in Illinois was 10.6°C (0.8°C below the 1981-2010 average). That is much cooler than 2012 when the statewide average temperature was 13.1°C.
The statewide average precipitation for 2013 in Illinois was 1112 mm (91 mm above the 1981-2010 average). The precipitation for the two halves of 2013 were very different. The precipitation for the first 6 months of 2013 totaled 736 mm and was 232 mm above average and the wettest January-June on record. The precipitation in the following 6 months of 2013 totaled 376 mm and was 141 mm below average and the 19th driest July-December on record.
By the way, the 2013 annual statewide average precipitation of 1112 mm was 329 mm wetter than 2012 when we received only 783 mm across the state.
Of course, there's art: