Chicago Midway, IL

3:54 AM CDT on March 23, 2017 (GMT -0500)
Chicago-Midway

Weather History for KMDW - September, 2012

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Thursday, September 27, 2012

  Actual Average Record
Temperature  
Mean Temperature 59 °F 62 °F  
Max Temperature 68 °F 71 °F 91 °F (1971)
Min Temperature 49 °F 52 °F 31 °F (1942)
Degree Days  
Heating Degree Days 6 5  
Month to date heating degree days 62 62  
Since 1 July heating degree days 62 67  
Cooling Degree Days 0 2  
Month to date cooling degree days 109 115  
Year to date cooling degree days 1467 1025  
Growing Degree Days 7 (Base 50)    
Moisture  
Dew Point 45 °F    
Average Humidity 59    
Maximum Humidity 77    
Minimum Humidity 41    
Precipitation  
Precipitation 0.00 in 0.10 in 1.43 in (1936)
Month to date precipitation 1.63 3.02  
Year to date precipitation 20.98 29.57  
Sea Level Pressure  
Sea Level Pressure 30.17 in    
Wind  
Wind Speed 8 mph (NNW)    
Max Wind Speed 17 mph    
Max Gust Speed 21 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. 27, 2012 Rise Set
Actual Time 6:44 AM CDT 6:38 PM CDT
Civil Twilight 6:16 AM CDT 7:06 PM CDT
Nautical Twilight 5:44 AM CDT 7:38 PM CDT
Astronomical Twilight 5:11 AM CDT 8:11 PM CDT
Moon 5:11 PM CDT (9/27) 4:11 AM CDT (9/27)
Length of Visible Light 12h 49m
Length of Day
11h 54m
Waxing Gibbous, 94% of the Moon is Illuminated
Sep 27
Waxing Gibbous
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New
Oct 21
First Quarter

Hourly Weather History & Observations

Time (CDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 57.9 °F 39.9 °F 51% 30.17 in 10.0 mi NNE 11.5 mph - N/A   Mostly Cloudy
1:51 AM 57.0 °F 39.9 °F 53% 30.17 in 10.0 mi NE 5.8 mph - N/A   Mostly Cloudy
2:51 AM 55.0 °F 42.1 °F 62% 30.16 in 10.0 mi North 4.6 mph - N/A   Mostly Cloudy
3:51 AM 54.0 °F 42.1 °F 64% 30.15 in 10.0 mi NNW 4.6 mph - N/A   Mostly Cloudy
4:51 AM 50.0 °F 42.1 °F 74% 30.17 in 10.0 mi NW 6.9 mph - N/A   Scattered Clouds
5:51 AM 50.0 °F 43.0 °F 77% 30.18 in 10.0 mi NW 5.8 mph - N/A   Scattered Clouds
6:51 AM 48.9 °F 42.1 °F 77% 30.19 in 10.0 mi NW 5.8 mph - N/A   Scattered Clouds
7:51 AM 52.0 °F 44.1 °F 74% 30.19 in 10.0 mi NW 8.1 mph - N/A   Scattered Clouds
8:51 AM 57.0 °F 46.0 °F 67% 30.19 in 10.0 mi NNW 5.8 mph - N/A   Scattered Clouds
9:51 AM 60.1 °F 46.0 °F 60% 30.21 in 10.0 mi North 9.2 mph - N/A   Scattered Clouds
10:51 AM 63.0 °F 44.1 °F 50% 30.19 in 10.0 mi Calm Calm - N/A   Scattered Clouds
11:51 AM 64.4 °F 44.6 °F 49% 30.18 in 10.0 mi NW 5.8 mph - N/A   Scattered Clouds
12:51 PM 66.2 °F 44.6 °F 46% 30.17 in 10.0 mi NNW 6.9 mph - N/A   Mostly Cloudy
1:51 PM 66.9 °F 43.0 °F 42% 30.16 in 10.0 mi North 11.5 mph - N/A   Mostly Cloudy
2:51 PM 66.0 °F 44.1 °F 45% 30.15 in 10.0 mi NNE 8.1 mph - N/A   Mostly Cloudy
3:51 PM 64.9 °F 46.9 °F 52% 30.14 in 10.0 mi North 12.7 mph - N/A   Mostly Cloudy
4:51 PM 64.0 °F 46.0 °F 52% 30.14 in 10.0 mi North 12.7 mph - N/A   Mostly Cloudy
5:51 PM 62.1 °F 46.0 °F 56% 30.16 in 10.0 mi NNW 9.2 mph - N/A   Mostly Cloudy
6:51 PM 60.1 °F 45.0 °F 57% 30.17 in 10.0 mi North 9.2 mph - N/A   Mostly Cloudy
7:51 PM 60.1 °F 48.9 °F 67% 30.18 in 10.0 mi North 12.7 mph - N/A   Scattered Clouds
8:51 PM 59.0 °F 48.0 °F 67% 30.18 in 10.0 mi North 9.2 mph - N/A   Mostly Cloudy
9:11 PM 59.0 °F 46.4 °F 63% 30.17 in 10.0 mi NNW 10.4 mph - N/A   Mostly Cloudy
9:51 PM 59.0 °F 46.9 °F 64% 30.17 in 10.0 mi North 9.2 mph - N/A   Scattered Clouds
10:51 PM 57.0 °F 46.9 °F 69% 30.16 in 10.0 mi NNW 9.2 mph - N/A   Partly Cloudy
11:51 PM 55.0 °F 46.0 °F 72% 30.15 in 10.0 mi NW 6.9 mph - N/A   Scattered Clouds