Marion County, Illinois
| Marion County, Illinois | |
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Marion County Courthouse in Salem
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 Location in the U.S. state of Illinois |
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 Illinois's location in the U.S. |
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| Founded | 1823 |
| Named for | Francis Marion |
| Seat | Salem |
| Largest city | Centralia |
| Area | |
| • Total | 576 sq mi (1,492 km2) |
| • Land | 572 sq mi (1,481 km2) |
| • Water | 3.7 sq mi (10 km2), 0.6% |
| Population | |
| • (2010) | 39,437 |
| • Density | 69/sq mi (27/km²) |
| Congressional district | 15th |
| Time zone | Central: UTC-6/-5 |
| Salem, Illinois | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Climate chart () | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| J | F | M | A | M | J | J | A | S | O | N | D |
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2.5
37
18
|
2.5
43
22
|
4
54
33
|
4
65
44
|
4.4
75
54
|
4.2
84
63
|
3.9
88
68
|
3.4
87
66
|
3.2
80
57
|
3.1
69
45
|
4.1
54
34
|
3.3
42
24
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| Average max. and min. temperatures in °F | |||||||||||
| Precipitation totals in inches | |||||||||||
| Source: The Weather Channel | |||||||||||
| Metric conversion | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| J | F | M | A | M | J | J | A | S | O | N | D |
|
62
3
−8
|
64
6
−6
|
101
12
1
|
102
18
7
|
111
24
12
|
105
29
17
|
99
31
20
|
87
31
19
|
82
27
14
|
79
21
7
|
105
12
1
|
83
6
−4
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| Wikipedia
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