Marshall County, Illinois
| Marshall County, Illinois | |
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Lacon Bridge in the county seat city
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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 19, 1839 |
| Named for | John Marshall |
| Seat | Lacon |
| Largest city | Henry |
| Area | |
| • Total | 399 sq mi (1,033 km2) |
| • Land | 387 sq mi (1,002 km2) |
| • Water | 12 sq mi (31 km2), 2.9% |
| Population | |
| • (2010) | 12,640 |
| • Density | 33/sq mi (13/km²) |
| Congressional district | 18th |
| Time zone | Central: UTC-6/-5 |
| Website | www |
| Lacon, 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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1.6
32
15
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1.6
38
21
|
3.1
51
31
|
3.8
64
41
|
4.2
75
51
|
4.1
84
60
|
4.1
87
64
|
3.5
85
62
|
3.5
79
54
|
3
67
43
|
3
50
32
|
2.3
37
21
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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 |
|
39
0
−9
|
41
3
−6
|
78
11
−1
|
98
18
5
|
107
24
11
|
105
29
16
|
105
31
18
|
90
29
17
|
89
26
12
|
76
19
6
|
77
10
0
|
59
...
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