Chicago Midway, IL

9:21 AM CDT on May 29, 2017 (GMT -0500)
Chicago-Midway

Weather History for KMDW - September, 2011

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Monday, September 12, 2011

  Actual Average Record
Temperature  
Mean Temperature 75 °F 68 °F  
Max Temperature 86 °F 77 °F 96 °F (1952)
Min Temperature 64 °F 59 °F 44 °F (1955)
Degree Days  
Heating Degree Days 0 2  
Month to date heating degree days 13  
Since 1 July heating degree days 18  
Cooling Degree Days 10 5  
Month to date cooling degree days 72  
Year to date cooling degree days 982  
Growing Degree Days 25 (Base 50)    
Moisture  
Dew Point 59 °F    
Average Humidity 59    
Maximum Humidity 81    
Minimum Humidity 37    
Precipitation  
Precipitation 0.00 in 0.11 in 2.43 in (1961)
Month to date precipitation 1.37  
Year to date precipitation 27.92  
Sea Level Pressure  
Sea Level Pressure 29.92 in    
Wind  
Wind Speed 8 mph (SW)    
Max Wind Speed 17 mph    
Max Gust Speed 24 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Sep. 12, 2011 Rise Set
Actual Time 6:27 AM CDT 7:06 PM CDT
Civil Twilight 5:59 AM CDT 7:34 PM CDT
Nautical Twilight 5:26 AM CDT 8:07 PM CDT
Astronomical Twilight 4:52 AM CDT 8:41 PM CDT
Moon 6:52 PM CDT (9/12) 6:45 AM CDT (9/12)
Length of Visible Light 13h 34m
Length of Day
12h 38m
Full, 100% of the Moon is Illuminated
Sep 12
Full
Sep 20
Last Quarter
Sep 27
New
Oct 3
First Quarter
Oct 11
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 68.0 °F - 59.0 °F 73% 29.97 in 10.0 mi WSW 5.8 mph - N/A   Clear
1:51 AM 66.9 °F - 59.0 °F 76% 29.97 in 10.0 mi SW 5.8 mph - N/A   Clear
2:51 AM 66.0 °F - 59.0 °F 78% 29.97 in 10.0 mi SW 4.6 mph - N/A   Clear
3:51 AM 64.9 °F - 59.0 °F 81% 29.97 in 10.0 mi WSW 6.9 mph - N/A   Clear
4:51 AM 64.9 °F - 59.0 °F 81% 29.97 in 10.0 mi WSW 6.9 mph - N/A   Clear
5:51 AM 64.9 °F - 57.9 °F 78% 29.97 in 10.0 mi SW 4.6 mph - N/A   Clear
6:51 AM 64.9 °F - 59.0 °F 81% 29.98 in 10.0 mi SW 3.5 mph - N/A   Scattered Clouds
7:51 AM 68.0 °F - 59.0 °F 73% 29.99 in 10.0 mi SW 6.9 mph - N/A   Partly Cloudy
8:51 AM 72.0 °F - 60.1 °F 66% 29.98 in 10.0 mi SW 4.6 mph - N/A   Scattered Clouds
9:51 AM 75.2 °F - 60.8 °F 61% 30.01 in 10.0 mi SW 10.4 mph - N/A   Mostly Cloudy
10:51 AM 78.8 °F - 62.6 °F 57% 30.00 in 10.0 mi WSW 11.5 mph - N/A   Mostly Cloudy
11:51 AM 81.0 °F 82.2 °F 63.0 °F 54% 29.96 in 10.0 mi WSW 12.7 mph 19.6 mph N/A   Mostly Cloudy
12:51 PM 82.9 °F 83.7 °F 62.1 °F 49% 29.94 in 10.0 mi WSW 12.7 mph 20.7 mph N/A   Scattered Clouds
1:51 PM 84.2 °F 84.4 °F 60.8 °F 45% 29.94 in 10.0 mi SW 13.8 mph 23.0 mph N/A   Scattered Clouds
2:51 PM 84.9 °F 84.2 °F 57.9 °F 40% 29.89 in 10.0 mi SW 17.3 mph 24.2 mph N/A   Scattered Clouds
3:51 PM 86.0 °F 84.9 °F 57.0 °F 37% 29.86 in 10.0 mi WSW 16.1 mph 23.0 mph N/A   Mostly Cloudy
4:51 PM 84.0 °F 83.3 °F 57.0 °F 40% 29.85 in 10.0 mi SW 13.8 mph 23.0 mph N/A   Mostly Cloudy
5:51 PM 82.9 °F 82.8 °F 59.0 °F 44% 29.83 in 10.0 mi SW 11.5 mph - N/A   Mostly Cloudy
6:51 PM 81.0 °F 81.3 °F 59.0 °F 47% 29.83 in 10.0 mi SW 6.9 mph - N/A   Mostly Cloudy
7:51 PM 79.0 °F - 59.0 °F 50% 29.83 in 10.0 mi SSW 5.8 mph 16.1 mph N/A   Partly Cloudy
8:51 PM 77.0 °F - 59.0 °F 54% 29.81 in 10.0 mi SSW 12.7 mph 19.6 mph N/A   Partly Cloudy
9:51 PM 75.9 °F - 57.0 °F 52% 29.82 in 10.0 mi SW 10.4 mph 18.4 mph N/A   Partly Cloudy
10:51 PM 73.9 °F - 57.0 °F 55% 29.82 in 10.0 mi SW 6.9 mph - N/A   Partly Cloudy
11:51 PM 73.9 °F - 57.0 °F 55% 29.81 in 10.0 mi SW 9.2 mph - N/A   Partly Cloudy