Chicago Midway, IL

2:33 PM CDT on October 20, 2017 (GMT -0500)
Chicago-Midway

Weather History for KMDW - September, 2012

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Friday, September 14, 2012

  Actual Average Record
Temperature  
Mean Temperature 65 °F 67 °F  
Max Temperature 75 °F 76 °F 101 °F (1939)
Min Temperature 54 °F 58 °F 42 °F (1949)
Degree Days  
Heating Degree Days 0 2  
Month to date heating degree days 2 17  
Since 1 July heating degree days 2 22  
Cooling Degree Days 0 4  
Month to date cooling degree days 100 80  
Year to date cooling degree days 1458 990  
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 45 °F    
Average Humidity 52    
Maximum Humidity 86    
Minimum Humidity 19    
Precipitation  
Precipitation T in 0.11 in 2.19 in (1993)
Month to date precipitation 1.32 1.59  
Year to date precipitation 20.67 28.14  
Sea Level Pressure  
Sea Level Pressure 30.30 in    
Wind  
Wind Speed 6 mph (WNW)    
Max Wind Speed 15 mph    
Max Gust Speed 18 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. 14, 2012 Rise Set
Actual Time 6:30 AM CDT 7:01 PM CDT
Civil Twilight 6:02 AM CDT 7:29 PM CDT
Nautical Twilight 5:29 AM CDT 8:02 PM CDT
Astronomical Twilight 4:55 AM CDT 8:35 PM CDT
Moon 4:53 AM CDT (9/14) 5:57 PM CDT (9/14)
Length of Visible Light 13h 26m
Length of Day
12h 30m
Waning Crescent, 2% of the Moon is Illuminated
Sep 14
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last 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 57.0 °F 51.1 °F 81% 30.30 in 10.0 mi North 5.8 mph - 0.00 in   Light Drizzle
1:51 AM 57.9 °F 52.0 °F 81% 30.29 in 10.0 mi NNW 6.9 mph - 0.00 in   Overcast
2:51 AM 57.9 °F 52.0 °F 81% 30.30 in 10.0 mi NNW 9.2 mph - N/A   Overcast
3:51 AM 57.0 °F 51.1 °F 81% 30.29 in 10.0 mi NNW 6.9 mph - N/A   Overcast
4:51 AM 55.4 °F 50.0 °F 82% 30.29 in 10.0 mi NW 4.6 mph - N/A   Mostly Cloudy
5:51 AM 54.0 °F 50.0 °F 86% 30.31 in 10.0 mi NW 5.8 mph - N/A   Mostly Cloudy
6:51 AM 55.0 °F 48.9 °F 80% 30.33 in 10.0 mi NW 10.4 mph - N/A   Mostly Cloudy
7:51 AM 55.9 °F 46.9 °F 72% 30.33 in 10.0 mi NNW 8.1 mph - N/A   Mostly Cloudy
8:51 AM 60.1 °F 48.0 °F 64% 30.35 in 10.0 mi NW 6.9 mph - N/A   Mostly Cloudy
9:51 AM 64.9 °F 45.0 °F 48% 30.35 in 10.0 mi NNW 5.8 mph - N/A   Mostly Cloudy
10:51 AM 69.1 °F 45.0 °F 42% 30.34 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
11:51 AM 70.0 °F 41.0 °F 35% 30.33 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
12:51 PM 72.0 °F 39.9 °F 31% 30.32 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:51 PM 72.0 °F 39.0 °F 30% 30.30 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:51 PM 73.0 °F 39.0 °F 29% 30.28 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
3:51 PM 73.9 °F 39.9 °F 29% 30.27 in 10.0 mi SW 10.4 mph - N/A   Mostly Cloudy
4:51 PM 73.9 °F 41.0 °F 30% 30.27 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
5:51 PM 73.9 °F 41.0 °F 30% 30.27 in 10.0 mi Variable 4.6 mph - N/A   Scattered Clouds
6:51 PM 71.1 °F 41.0 °F 34% 30.26 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
7:51 PM 69.1 °F 44.1 °F 40% 30.27 in 10.0 mi WSW 5.8 mph - N/A   Partly Cloudy
8:51 PM 64.9 °F 45.0 °F 48% 30.27 in 10.0 mi West 5.8 mph - N/A   Partly Cloudy
9:51 PM 64.0 °F 45.0 °F 50% 30.28 in 10.0 mi WSW 4.6 mph - N/A   Partly Cloudy
10:51 PM 62.1 °F 46.0 °F 56% 30.28 in 10.0 mi WSW 5.8 mph - N/A   Partly Cloudy
11:51 PM 61.0 °F 46.0 °F 58% 30.28 in 10.0 mi WSW 6.9 mph - N/A   Scattered Clouds