Weather History for Chicago, IL

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Tuesday, August 27, 2013

  Actual Average Record
Temperature  
Mean Temperature 87 °F 71 °F  
Max Temperature 96 °F 81 °F 97 °F (1973)
Min Temperature 77 °F 62 °F 47 °F (1982)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 2 0  
Since 1 June heating degree days 54 52  
Since 1 July heating degree days 11 4  
Cooling Degree Days 22 7  
Month to date cooling degree days 205 215  
Year to date cooling degree days 713 717  
Since 1 June cooling degree days 629 663  
Growing Degree Days 36 (Base 50)    
Moisture  
Dew Point 71 °F    
Average Humidity 62    
Maximum Humidity 82    
Minimum Humidity 42    
Precipitation  
Precipitation 0.00 in 0.14 in 1.59 in (1923)
Month to date precipitation 1.26 4.34  
Year to date precipitation 31.94 24.57  
Snow  
Snow 0.00 in 0.00 in 0.00 in ()
Month to date snowfall 0.0 0.0  
Since 1 June snowfall 0.0 0.0  
Since 1 July snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.91 in    
Wind  
Wind Speed 12 mph (WSW)    
Max Wind Speed 22 mph    
Max Gust Speed 28 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Aug. 27, 2013 Rise Set
Actual Time 6:12 AM CDT 7:33 PM CDT
Civil Twilight 5:43 AM CDT 8:02 PM CDT
Nautical Twilight 5:08 AM CDT 8:36 PM CDT
Astronomical Twilight 4:31 AM CDT 9:13 PM CDT
Moon 11:18 PM CDT 1:17 PM CDT
Length of Visible Light 14h 18m
Length of Day
13h 20m
Waning Gibbous, 57% of the Moon is Illuminated
Aug 27
Waning Gibbous
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter
Sep 19
Full

Hourly Weather History & Observations

Time (CDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 79.0 °F - 72.0 °F 79% 29.98 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
1:51 AM 80.1 °F 83.6 °F 71.1 °F 74% 29.97 in 10.0 mi WSW 8.1 mph - N/A   Overcast
2:51 AM 79.0 °F - 71.1 °F 77% 29.95 in 10.0 mi WSW 8.1 mph - N/A   Overcast
3:51 AM 79.0 °F - 71.1 °F 77% 29.94 in 10.0 mi WSW 9.2 mph - N/A   Overcast
4:51 AM 78.1 °F - 71.1 °F 79% 29.94 in 10.0 mi WSW 8.1 mph - N/A   Overcast
5:51 AM 77.0 °F - 71.1 °F 82% 29.95 in 10.0 mi WSW 9.2 mph - N/A   Overcast
6:51 AM 77.0 °F - 70.0 °F 79% 29.96 in 10.0 mi West 9.2 mph - N/A   Mostly Cloudy
7:51 AM 78.1 °F - 71.1 °F 79% 29.97 in 10.0 mi WSW 9.2 mph - N/A   Overcast
8:51 AM 81.0 °F 84.4 °F 70.0 °F 69% 29.95 in 10.0 mi West 12.7 mph - N/A   Mostly Cloudy
9:51 AM 84.9 °F 90.1 °F 71.1 °F 63% 29.96 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
10:51 AM 88.0 °F 93.8 °F 71.1 °F 57% 29.94 in 10.0 mi WSW 11.5 mph - N/A   Mostly Cloudy
11:51 AM 89.1 °F 95.0 °F 71.1 °F 55% 29.92 in 10.0 mi WSW 10.4 mph 19.6 mph N/A   Mostly Cloudy
12:51 PM 91.9 °F 97.4 °F 70.0 °F 48% 29.90 in 10.0 mi West 15.0 mph 24.2 mph N/A   Mostly Cloudy
1:51 PM 93.0 °F 97.9 °F 69.1 °F 45% 29.89 in 10.0 mi SW 15.0 mph 21.9 mph N/A   Mostly Cloudy
2:51 PM 95.0 °F 99.5 °F 68.0 °F 41% 29.86 in 10.0 mi SW 16.1 mph 23.0 mph N/A   Mostly Cloudy
3:51 PM 93.9 °F 99.1 °F 69.1 °F 44% 29.84 in 10.0 mi SW 17.3 mph 23.0 mph N/A   Scattered Clouds
4:51 PM 93.0 °F 100.7 °F 72.0 °F 50% 29.84 in 10.0 mi SW 13.8 mph 21.9 mph N/A   Scattered Clouds
5:51 PM 91.9 °F 99.5 °F 72.0 °F 52% 29.84 in 10.0 mi WSW 18.4 mph 25.3 mph N/A   Partly Cloudy
6:51 PM 90.0 °F 96.9 °F 72.0 °F 55% 29.84 in 10.0 mi WSW 13.8 mph 23.0 mph N/A   Scattered Clouds
7:51 PM 89.1 °F 95.0 °F 71.1 °F 55% 29.84 in 10.0 mi SW 13.8 mph 18.4 mph N/A   Mostly Cloudy
8:51 PM 87.1 °F 93.6 °F 72.0 °F 61% 29.86 in 10.0 mi SW 10.4 mph 17.3 mph N/A   Scattered Clouds
9:51 PM 86.0 °F 92.2 °F 72.0 °F 63% 29.86 in 10.0 mi SW 11.5 mph 18.4 mph N/A   Scattered Clouds
10:51 PM 84.0 °F 88.4 °F 70.0 °F 63% 29.85 in 10.0 mi SW 10.4 mph 20.7 mph N/A   Clear
11:51 PM 84.0 °F 87.0 °F 68.0 °F 58% 29.82 in 10.0 mi WSW 13.8 mph 23.0 mph N/A   Clear