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Chicago, Illinois Climate Guide to the Average Weather & Temperatures with Graphs Elucidating Sunshine and Rainfall Data & Information about Wind Speeds & Humidity:
- Chicago, Illinois, Usa latitude & longitude; 41°47'N 87°45'W.
- Altitude; 186 m (610 ft).
- The average temperature in Chicago, Illinois, Usa is 10.5 °C (51 °F).
- The range of average monthly temperatures is 27.5 °C.
- The warmest average max/ high temperature is 29 °C (84 °F) in July.
- The coolest average min/ low temperature is -7 °C (19 °F) in January.
- Chicago, Illinois receives on average 843 mm (33.2 in) of precipitation annually or 70 mm (2.8 in) each month.
- On balance there are 122 days annually on which greater than 0.1 mm (0.004 in) of precipitation (rain, sleet, snow or hail) occurrs or 10.2 days on an average month.
- The month with the driest weather is February when on balance 41 mm (1.6 in) of rain, sleet, hail or snow falls across 10 days.
- The month with the wettest weather is June when on balance 103 mm (4.1 in) of rain, sleet, hail or snow falls across 11 days.
- Mean relative humidity for an average year is recorded as 59.2% and on a monthly basis it ranges from 53% in July, September to 70% in January.
- There is an average range of hours of sunshine in Chicago, Illinois of between 3.7 hours per day in December and 10.2 hours per day in June.
- On balance there are 2565 sunshine hours annually and approximately 7.0 sunlight hours for each day.
- On balance there are 120 days annually registering frost in Chicago, Illinois and in January there are on average 28 days with frost.
Chicago, Illinois Climate Graph (Metric | Imperial units)
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Chicago, Illinois Weather Averages
| |
Average Minimum Temperatures in Chicago, Illinois, Usa (°C) |
Average Maximum Temperature in Chicago, Illinois, Usa (°C) |
Chicago, Illinois Average Temperature (°C) |
Average Sea Temp (°C) |
Average Precipitation/ Rainfall (mm) |
Wet Days (>0.1 mm) |
Average Sunlight Hours/ Day |
Relative Humidity (%) |
Average Wind Speed in Chicago, Illinois (Beaufort) |
Average Number of Days with Frost |
|
| Weather in Chicago, Illinois in January |
-7 |
1 |
-3 |
- |
47 |
10 |
4.0 |
70 |
3 |
28 |
Average Temperature in Chicago, Illinois in January |
| Weather in Chicago, Illinois in February |
-6 |
2 |
-2 |
- |
41 |
10 |
5.0 |
67 |
3 |
26 |
Average Temperature in Chicago, Illinois in February |
| Weather in Chicago, Illinois in March |
-2 |
6 |
2 |
- |
70 |
12 |
6.6 |
61.0 |
3 |
22 |
Average Temperature in Chicago, Illinois in March |
| Weather in Chicago, Illinois in April |
5 |
14 |
10 |
- |
77 |
12 |
6.9 |
55 |
3 |
4 |
Average Temperature in Chicago, Illinois in April |
| Weather in Chicago, Illinois in May |
11 |
21 |
16 |
- |
95 |
13 |
8.9 |
55 |
3 |
0 |
Average Temperature in Chicago, Illinois in May |
| Weather in Chicago, Illinois in June |
16 |
26 |
21 |
- |
103 |
11 |
10.2 |
56 |
3 |
0 |
Average Temperature in Chicago, Illinois in June |
| Weather in Chicago, Illinois in July |
20 |
29 |
25 |
- |
86 |
9 |
10.0 |
53 |
3 |
0 |
Average Temperature in Chicago, Illinois in July |
| Weather in Chicago, Illinois in August |
19 |
28 |
23.5 |
- |
80 |
9 |
9.2 |
55 |
3 |
0 |
Average Temperature in Chicago, Illinois in August |
| Weather in Chicago, Illinois in September |
14 |
24 |
19 |
- |
69 |
8 |
8.2 |
53 |
3 |
0 |
Average Temperature in Chicago, Illinois in September |
| Weather in Chicago, Illinois in October |
8 |
17 |
13 |
- |
71 |
8 |
6.9 |
54 |
3 |
2 |
Average Temperature in Chicago, Illinois in October |
| Weather in Chicago, Illinois in November |
0 |
8 |
4 |
- |
56 |
10 |
4.5 |
62 |
3 |
14 |
Average Temperature in Chicago, Illinois in November |
| Weather in Chicago, Illinois in December |
-5 |
2 |
-1.5 |
- |
48 |
10 |
3.7 |
69 |
3 |
24 |
Average Temperature in Chicago, Illinois in December |
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Add the Chicago, Illinois Climograph/ Climate Chart (imperial) to your web page!
Use our imperial climate chart for Chicago, Illinois on your travel or accommodation website to help people thinking of booking a flight or hotel, renting a villa or purchasing property etc. (a back link is required):
Chicago, Illinois Temperatures in Farenheit
| |
Average Minimum Temperatures in Chicago, Illinois, Usa (°F) |
Average Maximum Temperature in Chicago, Illinois, Usa (°F) |
Average Temperature (°F) |
Average Sea Temp (°F) |
Average Precipitation/ Rainfall (in) |
Wet Days (>0.004 in) |
Average Sunlight Hours/ Day |
Relative Humidity (%) |
Average Wind Speed (Beaufort) |
Average Number of Days with Frost |
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| Temperatures in Chicago, Illinois in January |
19 |
34 |
27 |
- |
1.9 |
10 |
4.0 |
70 |
3 |
28 |
Climate in Chicago, Illinois in January |
| Temperatures in Chicago, Illinois in February |
21 |
36 |
28 |
- |
1.6 |
10 |
5.0 |
67 |
3 |
26 |
Climate in Chicago, Illinois in February |
| Temperatures in Chicago, Illinois in March |
28 |
43 |
36 |
- |
2.8 |
12 |
6.6 |
61 |
3 |
22 |
Climate in Chicago, Illinois in March |
| Temperatures in Chicago, Illinois in April |
41 |
57 |
49 |
- |
3.0 |
12 |
6.9 |
55 |
3 |
4 |
Climate in Chicago, Illinois in April |
| Temperatures in Chicago, Illinois in May |
52 |
70 |
61 |
- |
3.7 |
13 |
8.9 |
55 |
3 |
0 |
Climate in Chicago, Illinois in May |
| Temperatures in Chicago, Illinois in June |
61 |
79 |
70 |
- |
4.1 |
11 |
10.2 |
56 |
3 |
0 |
Climate in Chicago, Illinois in June |
| Temperatures in Chicago, Illinois in July |
68 |
84 |
76 |
- |
3.4 |
9 |
10.0 |
53 |
3 |
0 |
Climate in Chicago, Illinois in July |
| Temperatures in Chicago, Illinois in August |
66 |
82 |
74 |
- |
3.1 |
9 |
9.2 |
55 |
3 |
0 |
Climate in Chicago, Illinois in August |
| Temperatures in Chicago, Illinois in September |
57 |
75 |
66 |
- |
2.7 |
8 |
8.2 |
53 |
3 |
0 |
Climate in Chicago, Illinois in September |
| Temperatures in Chicago, Illinois in October |
46 |
63 |
55 |
- |
2.8 |
8 |
6.9 |
54 |
3 |
2 |
Climate in Chicago, Illinois in October |
| Temperatures in Chicago, Illinois in November |
32 |
46 |
39 |
- |
2.2 |
10 |
4.5 |
62 |
3 |
14 |
Climate in Chicago, Illinois in November |
| Temperatures in Chicago, Illinois in December |
23 |
36 |
29 |
- |
1.9 |
10 |
3.7 |
69 |
3 |
24 |
Climate in Chicago, Illinois in December |
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