Weather History for Chicago, IL

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Wednesday, February 13, 2013

  Actual Average Record
Temperature  
Mean Temperature 32 °F 27 °F  
Max Temperature 44 °F 35 °F 63 °F (1938)
Min Temperature 19 °F 19 °F -18 °F (1905)
Degree Days  
Heating Degree Days 33 38  
Month to date heating degree days 522 513  
Since 1 July heating degree days 3841 4203  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 27 °F    
Average Humidity 79    
Maximum Humidity 100    
Minimum Humidity 57    
Precipitation  
Precipitation 0.00 in 0.07 in 0.78 in (1949)
Month to date precipitation 1.75 0.72  
Year to date precipitation 5.38 2.45  
Snow  
Snow 0.00 in 0.40 in 8.80 in (2007)
Month to date snowfall 7.2 4.6  
Since 1 July snowfall 10.7 25.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.78 in    
Wind  
Wind Speed 6 mph (SW)    
Max Wind Speed 16 mph    
Max Gust Speed 20 mph    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Feb. 13, 2013 Rise Set
Actual Time 6:49 AM CST 5:22 PM CST
Civil Twilight 6:21 AM CST 5:51 PM CST
Nautical Twilight 5:48 AM CST 6:24 PM CST
Astronomical Twilight 5:16 AM CST 6:56 PM CST
Moon 8:14 AM CST (2/13) 9:30 PM CST (2/13)
Length of Visible Light 11h 30m
Length of Day
10h 32m
Waxing Crescent, 14% of the Moon is Illuminated
Feb 13
Waxing Crescent
Feb 17
First Quarter
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 21.0 °F 16.2 °F 19.0 °F 92% 29.91 in 10.0 mi South 3.5 mph - N/A   Clear
1:51 AM 21.9 °F 15.7 °F 19.0 °F 89% 29.90 in 8.0 mi South 4.6 mph - N/A   Clear
2:51 AM 21.0 °F 14.6 °F 18.0 °F 88% 29.87 in 7.0 mi South 4.6 mph - N/A   Clear
3:51 AM 19.9 °F 13.4 °F 18.0 °F 92% 29.85 in 6.0 mi SSE 4.6 mph - N/A   Clear
4:51 AM 21.9 °F 17.2 °F 19.9 °F 92% 29.83 in 6.0 mi South 3.5 mph - N/A   Clear
5:51 AM 21.0 °F - 19.9 °F 96% 29.81 in 6.0 mi Calm Calm - N/A   Clear
6:51 AM 21.9 °F 17.2 °F 21.0 °F 96% 29.80 in 5.0 mi South 3.5 mph - N/A   Partly Cloudy
7:51 AM 25.0 °F - 24.1 °F 96% 29.80 in 5.0 mi Calm Calm - N/A   Partly Cloudy
8:51 AM 30.0 °F 23.2 °F 27.0 °F 88% 29.79 in 6.0 mi SW 6.9 mph - N/A   Partly Cloudy
9:51 AM 34.0 °F 28.8 °F 28.0 °F 79% 29.79 in 8.0 mi SSW 5.8 mph - N/A   Partly Cloudy
10:51 AM 37.0 °F 31.6 °F 28.0 °F 70% 29.78 in 9.0 mi SSW 6.9 mph - N/A   Partly Cloudy
11:51 AM 39.9 °F 35.8 °F 28.0 °F 63% 29.76 in 10.0 mi SW 5.8 mph - N/A   Partly Cloudy
12:51 PM 43.0 °F 38.8 °F 28.9 °F 58% 29.73 in 10.0 mi WSW 6.9 mph - N/A   Scattered Clouds
1:51 PM 43.0 °F 38.2 °F 28.9 °F 58% 29.72 in 10.0 mi West 8.1 mph - N/A   Mostly Cloudy
2:51 PM 43.0 °F 36.4 °F 30.0 °F 60% 29.71 in 10.0 mi WSW 12.7 mph - N/A   Mostly Cloudy
3:51 PM 41.0 °F 34.3 °F 30.0 °F 65% 29.72 in 10.0 mi West 11.5 mph - N/A   Overcast
4:51 PM 39.9 °F 33.4 °F 30.9 °F 70% 29.73 in 10.0 mi West 10.4 mph - N/A   Mostly Cloudy
5:51 PM 37.9 °F 32.7 °F 30.0 °F 73% 29.75 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
6:51 PM 37.0 °F 31.0 °F 30.9 °F 79% 29.75 in 10.0 mi West 8.1 mph - N/A   Partly Cloudy
7:51 PM 35.1 °F 30.1 °F 30.9 °F 85% 29.76 in 10.0 mi West 5.8 mph - N/A   Scattered Clouds
8:51 PM 36.0 °F 31.1 °F 30.9 °F 82% 29.75 in 10.0 mi WSW 5.8 mph - N/A   Overcast
9:51 PM 36.0 °F 30.3 °F 30.9 °F 82% 29.75 in 10.0 mi WSW 6.9 mph - N/A   Overcast
10:51 PM 36.0 °F 33.3 °F 30.9 °F 82% 29.74 in 10.0 mi SW 3.5 mph - N/A   Overcast
11:51 PM 36.0 °F 32.1 °F 30.9 °F 82% 29.74 in 10.0 mi SW 4.6 mph - N/A   Overcast