Weather History for Chicago, IL

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Tuesday, March 13, 2012

  Actual Average Record
Temperature  
Mean Temperature 59 °F 37 °F  
Max Temperature 70 °F 45 °F 73 °F (2007)
Min Temperature 48 °F 28 °F 6 °F (1896)
Degree Days  
Heating Degree Days 6 28  
Month to date heating degree days 267 395  
Since 1 July heating degree days 4240 5129  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 36 °F    
Average Humidity 52    
Maximum Humidity 83    
Minimum Humidity 20    
Precipitation  
Precipitation 0.00 in 0.07 in 1.15 in (1917)
Month to date precipitation 0.66 0.99  
Year to date precipitation 4.16 4.51  
Snow  
Snow 0.00 in 0.20 in 2.90 in (1980)
Month to date snowfall 0.3 3.0  
Since 1 July snowfall 19.8 32.5  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.04 in    
Wind  
Wind Speed 7 mph (WSW)    
Max Wind Speed 13 mph    
Max Gust Speed 16 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Mar. 13, 2012 Rise Set
Actual Time 7:06 AM CDT 6:56 PM CDT
Civil Twilight 6:38 AM CDT 7:24 PM CDT
Nautical Twilight 6:05 AM CDT 7:56 PM CDT
Astronomical Twilight 5:33 AM CDT 8:29 PM CDT
Moon 12:34 AM CDT (3/13) 10:12 AM CDT (3/13)
Length of Visible Light 12h 46m
Length of Day
11h 50m
Waning Gibbous, 65% of the Moon is Illuminated
Mar 13
Waning Gibbous
Mar 14
Last Quarter
Mar 22
New
Mar 30
First Quarter
Apr 6
Full

Hourly Weather History & Observations

Time (CDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 54.0 °F 48.0 °F 80% 29.91 in 10.0 mi WSW 8.1 mph - N/A   Clear
1:51 AM 53.1 °F 48.0 °F 83% 29.94 in 10.0 mi West 8.1 mph - N/A   Clear
2:51 AM 52.0 °F 46.9 °F 83% 29.94 in 10.0 mi WSW 6.9 mph - N/A   Clear
3:51 AM 52.0 °F 46.9 °F 83% 29.94 in 10.0 mi WSW 8.1 mph - N/A   Clear
4:51 AM 51.1 °F 46.0 °F 83% 29.96 in 10.0 mi WSW 6.9 mph - N/A   Clear
5:51 AM 51.1 °F 46.0 °F 83% 29.99 in 10.0 mi West 10.4 mph - N/A   Clear
6:51 AM 51.1 °F 45.0 °F 80% 30.02 in 10.0 mi WNW 10.4 mph - N/A   Clear
7:51 AM 50.0 °F 45.0 °F 83% 30.04 in 10.0 mi WNW 5.8 mph - N/A   Clear
8:51 AM 53.1 °F 43.0 °F 69% 30.07 in 10.0 mi NW 9.2 mph - N/A   Clear
9:51 AM 57.0 °F 37.9 °F 49% 30.08 in 10.0 mi NW 6.9 mph - N/A   Partly Cloudy
10:51 AM 60.1 °F 37.0 °F 42% 30.09 in 10.0 mi WNW 8.1 mph - N/A   Partly Cloudy
11:51 AM 63.0 °F 28.0 °F 27% 30.10 in 10.0 mi West 8.1 mph - N/A   Scattered Clouds
12:51 PM 64.4 °F 26.6 °F 24% 30.10 in 10.0 mi West 4.6 mph - N/A   Mostly Cloudy
1:51 PM 66.2 °F 28.4 °F 24% 30.08 in 10.0 mi NW 8.1 mph - N/A   Mostly Cloudy
2:51 PM 68.0 °F 28.0 °F 22% 30.07 in 10.0 mi Variable 6.9 mph - N/A   Mostly Cloudy
3:51 PM 69.1 °F 27.0 °F 21% 30.06 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
4:51 PM 69.8 °F 28.4 °F 21% 30.05 in 10.0 mi South 5.8 mph - N/A   Scattered Clouds
5:51 PM 69.1 °F 27.0 °F 21% 30.05 in 10.0 mi SW 5.8 mph - N/A   Partly Cloudy
6:51 PM 60.1 °F 33.1 °F 36% 30.06 in 10.0 mi SE 5.8 mph - N/A   Scattered Clouds
7:51 PM 60.1 °F 28.9 °F 31% 30.06 in 10.0 mi East 5.8 mph - N/A   Partly Cloudy
8:51 PM 57.0 °F 27.0 °F 32% 30.06 in 10.0 mi ESE 8.1 mph - N/A   Partly Cloudy
9:51 PM 51.1 °F 28.0 °F 41% 30.07 in 10.0 mi SE 3.5 mph - N/A   Clear
10:51 PM 52.0 °F 30.0 °F 43% 30.06 in 10.0 mi SE 5.8 mph - N/A   Clear
11:51 PM 53.1 °F 30.9 °F 43% 30.05 in 10.0 mi SSE 3.5 mph - N/A   Clear