Stephenson County
| Stephenson County, Illinois | |
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Stephenson 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 | 1837 |
| Named for | Benjamin Stephenson |
| Seat | Freeport |
| Largest city | Freeport |
| Area | |
| • Total | 565 sq mi (1,463 km2) |
| • Land | 565 sq mi (1,463 km2) |
| • Water | 0.5 sq mi (1 km2), 0.09% |
| Population | |
| • (2010) | 47,711 |
| • Density | 85/sq mi (33/km²) |
| Congressional district | 17th |
| Time zone | Central: UTC-6/-5 |
| Website | www |
| Freeport, 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
25
9
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1.3
31
14
|
2.1
43
25
|
3.2
57
36
|
4
69
47
|
4.5
78
57
|
3.6
82
62
|
4.1
80
59
|
3.7
73
50
|
2.6
61
39
|
2.7
44
28
|
1.7
30
16
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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 |
|
34
−4
−13
|
34
−1
−10
|
54
6
−4
|
82
14
2
|
101
21
8
|
113
26
14
|
91
28
17
|
104
27
15
|
93
23
10
|
66
16
4
|
68
7
−2
|
44
...
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