Weather History for Chicago Executive, IL

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Sunday, December 18, 2011

  Actual Average Record
Temperature  
Mean Temperature 34 °F 27 °F  
Max Temperature 45 °F 34 °F 55 °F (2002)
Min Temperature 24 °F 20 °F 0 °F (2000)
Degree Days  
Heating Degree Days 30 38  
Month to date heating degree days 636  
Since 1 July heating degree days 1906  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 789  
Moisture  
Dew Point 27 °F    
Average Humidity 77    
Maximum Humidity 93    
Minimum Humidity 53    
Precipitation  
Precipitation 0.00 in 0.05 in 0.79 in (2002)
Month to date precipitation 1.13  
Year to date precipitation 32.65  
Sea Level Pressure  
Sea Level Pressure 30.14 in    
Wind  
Wind Speed 6 mph (SSW)    
Max Wind Speed 16 mph    
Max Gust Speed 22 mph    
Visibility 6 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 18, 2011 Rise Set
Actual Time 7:14 AM CST 4:21 PM CST
Civil Twilight 6:43 AM CST 4:53 PM CST
Nautical Twilight 6:07 AM CST 5:28 PM CST
Astronomical Twilight 5:33 AM CST 6:02 PM CST
Moon 12:09 AM CST (12/18) 11:51 AM CST (12/18)
Length of Visible Light 10h 10m
Length of Day
9h 06m
Last Quarter, 42% of the Moon is Illuminated
Dec 18
Last Quarter
Dec 24
New
Jan 1
First Quarter
Jan 9
Full
Jan 16
Last Quarter

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 33.1 °F 27.7 °F 27.0 °F 78% 30.22 in 8.0 mi West 5.8 mph - N/A   Overcast
1:52 AM 33.1 °F 28.7 °F 26.1 °F 75% 30.21 in 8.0 mi WNW 4.6 mph - N/A   Overcast
2:45 AM 30.2 °F 26.7 °F 24.8 °F 80% 30.21 in 8.0 mi West 3.5 mph - N/A   Scattered Clouds
3:52 AM 30.0 °F - 25.0 °F 82% 30.22 in 7.0 mi Calm Calm - N/A   Clear
4:52 AM 28.9 °F - 25.0 °F 85% 30.22 in 6.0 mi Calm Calm - N/A   Clear
5:52 AM 27.0 °F - 24.1 °F 89% 30.22 in 5.0 mi Calm Calm - N/A   Clear
6:52 AM 25.0 °F 20.7 °F 21.9 °F 88% 30.24 in 4.0 mi South 3.5 mph - N/A   Clear
7:21 AM 26.6 °F 21.2 °F 21.2 °F 80% 30.22 in 2.5 mi SSW 4.6 mph - N/A   Scattered Clouds
7:27 AM 26.6 °F 21.2 °F 23.0 °F 86% 30.22 in 3.0 mi SSW 4.6 mph - N/A   Mostly Cloudy
7:30 AM 26.6 °F 20.0 °F 23.0 °F 86% 30.21 in 0.2 mi SSW 5.8 mph - N/A   Mostly Cloudy
7:42 AM 24.8 °F 17.9 °F 23.0 °F 93% 30.21 in 0.2 mi SSW 5.8 mph - N/A Fog Light Freezing Fog
7:52 AM 25.0 °F 18.1 °F 23.0 °F 92% 30.24 in 0.2 mi SW 5.8 mph - N/A Fog Light Freezing Fog
9:23 AM 28.4 °F 22.2 °F 24.8 °F 86% 30.22 in 1.0 mi SSW 5.8 mph - N/A   Overcast
10:07 AM 28.4 °F 19.7 °F 26.6 °F 93% 30.23 in 2.5 mi South 9.2 mph - N/A   Overcast
10:27 AM 28.4 °F 19.7 °F 26.6 °F 93% 30.22 in 4.0 mi SSW 9.2 mph - N/A   Mostly Cloudy
10:52 AM 30.9 °F 24.3 °F 26.1 °F 82% 30.22 in 6.0 mi SSW 6.9 mph - N/A   Haze
11:52 AM 36.0 °F 29.6 °F 27.0 °F 70% 30.18 in 8.0 mi South 8.1 mph - N/A   Clear
12:52 PM 41.0 °F 34.7 °F 27.0 °F 57% 30.13 in 10.0 mi SSW 10.4 mph - N/A   Clear
2:52 PM 45.0 °F 39.7 °F 28.9 °F 53% 30.07 in 10.0 mi SSW 10.4 mph - N/A   Clear
3:52 PM 44.1 °F 39.0 °F 32.0 °F 63% 30.05 in 10.0 mi SSW 9.2 mph - N/A   Clear
4:52 PM 42.1 °F 37.1 °F 33.1 °F 70% 30.02 in 10.0 mi South 8.1 mph - N/A   Clear
5:52 PM 41.0 °F 33.9 °F 33.1 °F 73% 30.01 in 10.0 mi South 12.7 mph - N/A   Clear
7:52 PM 44.1 °F 37.4 °F 35.1 °F 71% 29.97 in 10.0 mi SSW 13.8 mph - N/A   Clear
8:52 PM 44.1 °F 37.1 °F 34.0 °F 68% 29.95 in 10.0 mi SSW 15.0 mph - N/A   Clear
9:52 PM 44.1 °F 36.8 °F 33.1 °F 65% 29.94 in 10.0 mi SSW 16.1 mph 21.9 mph N/A   Mostly Cloudy
10:52 PM 45.0 °F 39.3 °F 33.1 °F 63% 29.92 in 10.0 mi SSW 11.5 mph - N/A   Overcast
11:52 PM 45.0 °F 39.3 °F 33.1 °F 63% 29.91 in 10.0 mi SSW 11.5 mph - N/A   Overcast