Jefferson County, IL Weather Data

Jefferson County, IL Current Weather Data

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Jefferson County, IL Historical Weather Trends

*Historical weather data collected from De Soto, IL
Jefferson County, IL

Jefferson County, IL Chance of Sunshine

Month
% Sunny
Clear Days
Partly Cloudy Days
Cloudy Days
January
45.16%
7
7
17
February
46.43%
7
6
15
March
46.67%
6
8
16
April
50.00%
7
8
15
May
53.33%
7
9
14
June
60.00%
7
11
12
July
66.67%
9
11
10
August
67.74%
10
11
10
September
65.52%
11
8
10
October
63.33%
12
7
11
November
51.61%
9
7
15
December
45.16%
7
7
17

Jefferson County, IL Historical Temperature

Month
Average
Max Average
Min Average
January
32.55°
41.83°
23.23°
February
37.25°
46.2°
28.23°
March
48.72°
58.65°
38.72°
April
57.78°
69°
46.55°
May
66.75°
77.4°
56.05°
June
76.27°
87.7°
64.8°
July
79.28°
89.92°
68.58°
August
76.52°
88.24°
64.74°
September
68.88°
80.65°
57.05°
October
57.43°
69.95°
44.85°
November
46.9°
57.77°
35.98°
December
36.92°
45.42°
28.38°

Jefferson County, IL Rainfall and Snowfall Average

Month
Average Rainfall
Average Snowfall
January
2.16 Inches
1.86 Inches
February
2.77 Inches
3.28 Inches
March
4.6 Inches
0.7 Inches
April
6.17 Inches
0 Inches
May
4.11 Inches
0 Inches
June
2.35 Inches
0 Inches
July
3.86 Inches
0 Inches
August
3.09 Inches
0 Inches
September
3.41 Inches
0 Inches
October
3.85 Inches
0 Inches
November
3.1 Inches
0 Inches
December
3.83 Inches
2.53 Inches

Jefferson County, IL Energy Demand

Month
Avg. Daily HDD (?)
Avg. Daily CDD (?)
Total
January
32.2
0
32.2
February
27.58
0
27.58
March
16.2
0.3
16.5
April
8.18
1.2
9.38
May
2.26
4.59
6.85
June
0.06
11.79
11.85
July
0
13.97
13.97
August
0.02
12.7
12.72
September
1.07
5.17
6.24
October
8.43
1.03
9.46
November
17.88
0.02
17.9
December
27.85
0
27.85