Sullivan, IL Weather Data
Sullivan, IL Current Weather Data
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Sullivan, IL Historical Weather Trends
*Historical weather data collected from Lafayette Township, IL
Sullivan, IL
Sullivan, IL area Highlights
Sullivan, IL Chance of Sunshine
Month
% Sunny
Clear Days
Partly Cloudy Days
Cloudy Days
January
43.33%
7
6
17
February
46.43%
7
6
15
March
41.94%
6
7
18
April
50.00%
7
8
15
May
54.84%
8
9
14
June
58.62%
8
9
12
July
67.74%
10
11
10
August
67.74%
11
10
10
September
66.67%
12
8
10
October
61.29%
12
7
12
November
46.67%
8
6
16
December
41.94%
7
6
18
Sullivan, IL Historical Temperature
Month
Average
Max Average
Min Average
January
26.27°
34.38°
18.12°
February
31.33°
39.3°
23.3°
March
44.25°
53.42°
35.03°
April
54.5°
64.82°
44.15°
May
63.78°
73.88°
53.65°
June
72.81°
83.94°
61.64°
July
74.83°
86.6°
63.05°
August
73.38°
85.66°
61.06°
September
66.62°
77.97°
55.18°
October
55.33°
65.87°
44.75°
November
44.02°
52.98°
35.02°
December
32.37°
39.13°
25.52°
Sullivan, IL Rainfall and Snowfall Average
Month
Average Rainfall
Average Snowfall
January
1.64 Inches
3.74 Inches
February
2.2 Inches
3.52 Inches
March
1.68 Inches
1.71 Inches
April
5.11 Inches
0 Inches
May
2.91 Inches
0 Inches
June
4.24 Inches
0 Inches
July
3.71 Inches
0 Inches
August
1.2 Inches
0 Inches
September
3.71 Inches
0 Inches
October
2.62 Inches
0 Inches
November
2.41 Inches
0.06 Inches
December
2.68 Inches
3.8 Inches
Sullivan, IL Energy Demand
January
38.55
0
38.55
February
34.33
0
34.33
March
20.77
0.23
21
April
10.83
0.57
11.4
May
3.56
3.39
6.95
June
0.36
8.9
9.26
July
0.24
10.94
11.18
August
0.33
9.85
10.18
September
1.6
4.18
5.78
October
10.25
0.8
11.05
November
20.77
0
20.77
December
32.35
0
32.35
