Mercer County, Illinois
| Mercer County, Illinois | |
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Mercer County Courthouse
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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 | January 13, 1825 |
| Named for | Hugh Mercer |
| Seat | Aledo |
| Largest city | Aledo |
| Area | |
| • Total | 569 sq mi (1,474 km2) |
| • Land | 561 sq mi (1,453 km2) |
| • Water | 7.5 sq mi (19 km2), 1.3% |
| Population | |
| • (2010) | 16,434 |
| • Density | 29/sq mi (11/km²) |
| Congressional district | 17th |
| Time zone | Central: UTC-6/-5 |
| Website | www |
| Aledo, 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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1.3
29
11
|
1.3
35
17
|
2.4
47
26
|
3.7
61
37
|
3.9
72
48
|
4.4
81
59
|
4.2
84
62
|
4.3
82
60
|
3.3
75
51
|
2.7
64
40
|
2.5
47
28
|
1.9
34
17
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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 |
|
32
−2
−12
|
33
2
−8
|
62
8
−3
|
94
16
3
|
100
22
9
|
113
27
15
|
107
29
17
|
109
28
16
|
84
24
11
|
69
18
4
|
64
8
−2
|
49
Wikipedia
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