History for Chicago, IL

Wednesday, February 20, 2013 — View Current Conditions
Wednesday, February 20, 2013
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Daily Weekly Monthly Custom
  Actual Average Record
Temperature
Mean Temperature 16 °F 29 °F  
Max Temperature 24 °F 37 °F 64 °F (1930)
Min Temperature 8 °F 22 °F -9 °F (1896)
Degree Days
Heating Degree Days 49 36  
Month to date heating degree days 801 770  
Since 1 July heating degree days 4120 4460  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture
Dew Point 6 °F    
Average Humidity 65    
Maximum Humidity 74    
Minimum Humidity 55    
Precipitation
Precipitation 0.00 in 0.07 in 0.95 in (1891)
Month to date precipitation 2.04 1.18  
Year to date precipitation 5.67 2.91  
Snow
Snow 0.00 in 0.30 in 2.80 in (1989)
Month to date snowfall 7.4 6.8  
Since 1 July snowfall 10.9 27.2  
Snow Depth 0.00 in    
Sea Level Pressure
Sea Level Pressure 30.32 in    
Wind
Wind Speed 10 mph (NW)    
Max Wind Speed 17 mph    
Max Gust Speed 25 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary
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Astronomy
May. 22, 2013 Rise Set
Actual Time 6:40 AM CST 5:31 PM CST
Civil Twilight 6:11 AM CST 5:59 PM CST
Nautical Twilight 5:39 AM CST 6:32 PM CST
Astronomical Twilight 5:06 AM CST 7:04 PM CST
Moon 12:49 PM CST (2/20) 3:02 AM CST (2/20)
Length Of Visible Light 11h 47m
Length of Day
10h 51m
Waxing Gibbous, 76% of the Moon is Illuminated
Feb 20
Waxing Gibbous
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter
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Hourly Observations
Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 10.9 °F -4.7 °F 1.0 °F 64% 30.22 in 10.0 mi NW 13.8 mph 21.9 mph N/A   Clear
1:51 AM 10.0 °F -4.5 °F 1.9 °F 70% 30.24 in 10.0 mi WNW 11.5 mph - N/A   Clear
2:51 AM 10.0 °F -7.6 °F 1.0 °F 67% 30.24 in 10.0 mi NW 17.3 mph 23.0 mph N/A   Clear
3:51 AM 9.0 °F -7.3 °F -0.0 °F 67% 30.26 in 10.0 mi WNW 13.8 mph - N/A   Clear
4:51 AM 9.0 °F -7.3 °F -0.0 °F 67% 30.29 in 10.0 mi WNW 13.8 mph - N/A   Clear
5:51 AM 9.0 °F -6.6 °F -0.0 °F 67% 30.29 in 10.0 mi NW 12.7 mph - N/A   Partly Cloudy
6:51 AM 9.0 °F -6.6 °F -0.0 °F 67% 30.30 in 10.0 mi NW 12.7 mph - N/A   Partly Cloudy
7:51 AM 10.0 °F -5.2 °F 1.0 °F 67% 30.32 in 10.0 mi NW 12.7 mph - N/A   Partly Cloudy
8:51 AM 12.9 °F -0.2 °F 1.9 °F 62% 30.33 in 10.0 mi NW 10.4 mph - N/A   Partly Cloudy
9:51 AM 15.1 °F 3.3 °F 3.9 °F 61% 30.34 in 10.0 mi NW 9.2 mph - N/A   Partly Cloudy
10:51 AM 18.0 °F 9.8 °F 6.1 °F 60% 30.35 in 10.0 mi West 5.8 mph - N/A   Partly Cloudy
11:51 AM 19.9 °F 8.6 °F 7.0 °F 57% 30.33 in 10.0 mi NNW 10.4 mph - N/A   Scattered Clouds
12:51 PM 21.0 °F 10.6 °F 8.1 °F 57% 30.34 in 10.0 mi NW 9.2 mph - N/A   Mostly Cloudy
1:51 PM 24.1 °F 14.4 °F 10.9 °F 57% 30.36 in 10.0 mi West 9.2 mph - N/A   Mostly Cloudy
2:51 PM 23.0 °F 12.4 °F 12.0 °F 63% 30.34 in 10.0 mi NW 10.4 mph - N/A   Mostly Cloudy
3:51 PM 24.1 °F 12.5 °F 10.9 °F 57% 30.33 in 10.0 mi NNW 12.7 mph - N/A   Scattered Clouds
4:51 PM 23.0 °F 12.4 °F 10.9 °F 60% 30.35 in 10.0 mi NNW 10.4 mph - N/A   Mostly Cloudy
5:51 PM 21.0 °F 10.6 °F 10.0 °F 63% 30.37 in 10.0 mi NNW 9.2 mph - N/A   Scattered Clouds
6:51 PM 19.9 °F 12.1 °F 10.0 °F 65% 30.37 in 10.0 mi North 5.8 mph - N/A   Mostly Cloudy
7:51 PM 19.0 °F 12.3 °F 9.0 °F 65% 30.37 in 10.0 mi NNE 4.6 mph - N/A   Scattered Clouds
8:51 PM 17.6 °F - 10.4 °F 73% 30.33 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:51 PM 19.0 °F 13.9 °F 10.0 °F 68% 30.37 in 10.0 mi NNW 3.5 mph - N/A   Scattered Clouds
10:51 PM 19.0 °F 13.9 °F 10.0 °F 68% 30.37 in 10.0 mi NNW 3.5 mph - N/A   Scattered Clouds
11:47 PM 19.4 °F 12.8 °F 10.4 °F 68% 30.33 in 10.0 mi WNW 4.6 mph - N/A   Mostly Cloudy
11:51 PM 19.0 °F 11.1 °F 10.9 °F 71% 30.36 in 10.0 mi WNW 5.8 mph - N/A   Mostly Cloudy
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