Weather History for Chicago, IL

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Wednesday, August 8, 2012

  Actual Average Record
Temperature  
Mean Temperature 78 °F 73 °F  
Max Temperature 84 °F 83 °F 100 °F (1934)
Min Temperature 72 °F 64 °F 52 °F (1976)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 June heating degree days 14 52  
Since 1 July heating degree days 0 4  
Cooling Degree Days 13 8  
Month to date cooling degree days 108 71  
Year to date cooling degree days 1076 573  
Since 1 June cooling degree days 905 519  
Growing Degree Days 28 (Base 50)    
Moisture  
Dew Point 64 °F    
Average Humidity 65    
Maximum Humidity 87    
Minimum Humidity 43    
Precipitation  
Precipitation T in 0.16 in 2.35 in (1977)
Month to date precipitation 0.37 1.28  
Year to date precipitation 17.14 21.51  
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 29.96 in    
Wind  
Wind Speed 9 mph (NE)    
Max Wind Speed 14 mph    
Max Gust Speed 26 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Aug. 08, 2012 Rise Set
Actual Time 5:52 AM CDT 8:01 PM CDT
Civil Twilight 5:22 AM CDT 8:31 PM CDT
Nautical Twilight 4:44 AM CDT 9:09 PM CDT
Astronomical Twilight 4:02 AM CDT 9:50 PM CDT
Moon 11:06 PM CDT (8/8) 12:46 PM CDT (8/8)
Length of Visible Light 15h 09m
Length of Day
14h 08m
Waning Gibbous, 60% of the Moon is Illuminated
Aug 8
Waning Gibbous
Aug 9
Last Quarter
Aug 17
New
Aug 24
First Quarter
Aug 31
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 77.0 °F - 71.1 °F 82% 29.93 in 10.0 mi North 8.1 mph - N/A   Clear
1:51 AM 75.9 °F - 68.0 °F 76% 29.94 in 10.0 mi NNE 5.8 mph - N/A   Clear
2:51 AM 75.0 °F - 68.0 °F 79% 29.93 in 10.0 mi NNE 4.6 mph - N/A   Clear
3:51 AM 73.9 °F - 69.1 °F 85% 29.94 in 10.0 mi NNE 3.5 mph - N/A   Clear
4:51 AM 73.0 °F - 69.1 °F 87% 29.93 in 10.0 mi NNE 5.8 mph - N/A   Partly Cloudy
5:51 AM 73.0 °F - 68.0 °F 84% 29.95 in 10.0 mi NNE 4.6 mph - N/A   Scattered Clouds
6:51 AM 73.9 °F - 69.1 °F 85% 29.96 in 10.0 mi NNE 3.5 mph - N/A   Mostly Cloudy
7:51 AM 75.9 °F - 68.0 °F 76% 29.96 in 10.0 mi NE 10.4 mph - N/A   Mostly Cloudy
8:51 AM 79.0 °F - 64.0 °F 60% 29.98 in 10.0 mi ENE 6.9 mph - N/A   Mostly Cloudy
9:51 AM 80.1 °F 81.7 °F 64.0 °F 58% 29.99 in 10.0 mi ENE 10.4 mph - N/A   Mostly Cloudy
10:51 AM 82.0 °F 82.4 °F 60.1 °F 47% 30.00 in 10.0 mi ENE 11.5 mph - N/A   Mostly Cloudy
11:51 AM 81.0 °F 81.7 °F 61.0 °F 50% 30.00 in 10.0 mi NE 10.4 mph - N/A   Overcast
12:51 PM 82.9 °F 83.3 °F 61.0 °F 47% 29.98 in 10.0 mi NE 11.5 mph - N/A   Overcast
1:51 PM 82.0 °F 81.7 °F 57.0 °F 42% 29.99 in 10.0 mi ENE 9.2 mph - N/A   Overcast
2:51 PM 80.1 °F 80.4 °F 57.0 °F 45% 29.99 in 10.0 mi ENE 10.4 mph - N/A   Overcast
3:51 PM 78.1 °F - 60.1 °F 54% 29.97 in 10.0 mi NE 13.8 mph - 0.00 in   Overcast
4:51 PM 75.9 °F - 61.0 °F 60% 29.99 in 10.0 mi ENE 11.5 mph - 0.00 in Rain Light Rain
5:51 PM 75.0 °F - 62.1 °F 64% 29.98 in 10.0 mi NE 9.2 mph - 0.00 in   Overcast
6:51 PM 75.0 °F - 63.0 °F 66% 29.95 in 10.0 mi ENE 13.8 mph - 0.00 in   Overcast
7:51 PM 75.0 °F - 57.0 °F 53% 29.94 in 10.0 mi NE 10.4 mph - N/A   Mostly Cloudy
8:51 PM 75.0 °F - 57.9 °F 55% 29.94 in 10.0 mi NE 10.4 mph - N/A   Mostly Cloudy
9:51 PM 73.9 °F - 59.0 °F 59% 29.95 in 10.0 mi NE 6.9 mph - N/A   Mostly Cloudy
10:51 PM 73.9 °F - 62.1 °F 66% 29.94 in 10.0 mi NNE 5.8 mph - N/A   Mostly Cloudy
11:51 PM 73.9 °F - 63.0 °F 68% 29.94 in 10.0 mi ENE 8.1 mph - N/A   Scattered Clouds