Champaign, IL Weather

The city has a humid continental climate, typical of the Midwestern United States, with hot summers and cold, moderately snowy winters. Temperatures exceed 90 °F (32.2 °C) on an average of 24 days per year, and typically fall below 0 °F (−17.8 °C) on six nights annually. The record high temperature in Champaign was 109 °F (42.8 °C) in 1954, and the record low was −25 °F (−31.7 °C), recorded on four separate occasions − in 1899, 1905, 1994 and 1999.

Average Temperature
Jan
30 °F
-1 °C
Feb
33 °F
1 °C
Mar
43 °F
6 °C
Apr
57 °F
14 °C
May
70 °F
21 °C
Jun
77 °F
25 °C
Jul
82 °F
28 °C
Aug
79 °F
26 °C
Sep
79 °F
26 °C
Oct
63 °F
17 °C
Nov
41 °F
5 °C
Dec
39 °F
4 °C
Humidity
Jan
80%
Feb
78%
Mar
69%
Apr
70%
May
79%
Jun
79%
Jul
84%
Aug
81%
Sep
79%
Oct
71%
Nov
76%
Dec
80%
Rain
Jan
65mm
Feb
46mm
Mar
86mm
Apr
67mm
May
146mm
Jun
99mm
Jul
103mm
Aug
137mm
Sep
87mm
Oct
104mm
Nov
36mm
Dec
58mm
Clouds
Jan
65%
Feb
69%
Mar
62%
Apr
58%
May
57%
Jun
44%
Jul
24%
Aug
28%
Sep
35%
Oct
38%
Nov
59%
Dec
50%
Air quality US AQI
Jan
35
Feb
36
Mar
32
Apr
31
May
33
Jun
32
Jul
34
Aug
35
Sep
32
Oct
27
Nov
36
Dec
40
Sun
Jan
2UVI
Feb
3UVI
Mar
4UVI
Apr
5UVI
May
6UVI
Jun
8UVI
Jul
9UVI
Aug
7UVI
Sep
6UVI
Oct
4UVI
Nov
2UVI
Dec
2UVI