Chicago, IL

6:53 PM CST on February 26, 2017 (GMT -0600)
Chicago-Midway

Weather History for KMDW - December, 2012

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Thursday, December 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 42 °F 28 °F  
Max Temperature 50 °F 34 °F 59 °F (1988)
Min Temperature 33 °F 21 °F -9 °F (1963)
Degree Days  
Heating Degree Days 23 37  
Month to date heating degree days 449 691  
Since 1 July heating degree days 1569 1826  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1473 1045  
Moisture  
Dew Point 37 °F    
Average Humidity 85    
Maximum Humidity 93    
Minimum Humidity 72    
Precipitation  
Precipitation 1.12 in 0.08 in 1.12 in (2012)
Month to date precipitation 1.71 1.75  
Year to date precipitation 26.49 38.27  
Sea Level Pressure  
Sea Level Pressure 29.32 in    
Wind  
Wind Speed 17 mph (SE)    
Max Wind Speed 33 mph    
Max Gust Speed 41 mph    
Visibility 4 miles    
Events Rain , Snow    
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

Dec. 20, 2012 Rise Set
Actual Time 7:14 AM CST 4:23 PM CST
Civil Twilight 6:43 AM CST 4:54 PM CST
Nautical Twilight 6:07 AM CST 5:29 PM CST
Astronomical Twilight 5:34 AM CST 6:03 PM CST
Moon 11:45 AM CST (12/20) No Moon Set
Length of Visible Light 10h 11m
Length of Day
9h 08m
First Quarter, 55% of the Moon is Illuminated
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:46 AM 41.0 °F 33.5 °F 35.6 °F 81% 29.77 in 2.0 mi East 13.8 mph 23.0 mph 0.06 in Rain Rain
12:51 AM 41.0 °F 33.1 °F 36.0 °F 82% 29.78 in 2.0 mi East 15.0 mph - 0.07 in Rain Rain
1:41 AM 41.0 °F 32.2 °F 37.4 °F 87% 29.69 in 3.0 mi East 18.4 mph - 0.10 in Rain Light Rain
1:51 AM 41.0 °F 31.9 °F 37.9 °F 89% 29.71 in 3.0 mi East 19.6 mph 26.5 mph 0.10 in Rain Light Rain
2:28 AM 41.0 °F 31.9 °F 37.4 °F 87% 29.66 in 2.0 mi East 19.6 mph - 0.05 in Rain Rain
2:51 AM 41.0 °F 31.6 °F 37.9 °F 89% 29.63 in 2.0 mi East 20.7 mph 33.4 mph 0.12 in Rain Rain
3:19 AM 41.0 °F 30.9 °F 37.4 °F 87% 29.57 in 5.0 mi East 24.2 mph 29.9 mph 0.02 in Rain Light Rain
3:51 AM 42.1 °F 33.6 °F 37.9 °F 85% 29.57 in 4.0 mi ESE 18.4 mph 24.2 mph 0.03 in Rain Light Rain
4:16 AM 42.8 °F 35.1 °F 39.2 °F 87% 29.53 in 2.0 mi ESE 16.1 mph 21.9 mph 0.06 in Rain Rain
4:51 AM 42.1 °F 34.2 °F 39.0 °F 89% 29.49 in 2.0 mi ESE 16.1 mph 24.2 mph 0.17 in Rain Rain
5:26 AM 42.8 °F 35.8 °F 39.2 °F 87% 29.45 in 3.0 mi ESE 13.8 mph - 0.11 in Rain Light Rain
5:51 AM 43.0 °F 36.8 °F 39.9 °F 89% 29.45 in 3.0 mi ESE 11.5 mph - 0.18 in Rain Light Rain
6:51 AM 44.1 °F 39.0 °F 41.0 °F 89% 29.40 in 4.0 mi East 9.2 mph - 0.12 in Rain Light Rain
7:51 AM 46.0 °F 39.6 °F 42.1 °F 86% 29.32 in 6.0 mi SE 15.0 mph 23.0 mph 0.02 in Rain Light Rain
8:51 AM 46.9 °F - 43.0 °F 86% 29.30 in 6.0 mi ESE 12.7 mph - 0.00 in   Overcast
9:51 AM 46.9 °F - 43.0 °F 86% 29.24 in 6.0 mi ESE 15.0 mph - N/A   Overcast
10:51 AM 48.0 °F - 44.1 °F 86% 29.17 in 5.0 mi SE 12.7 mph - 0.00 in Rain Light Rain
11:51 AM 48.9 °F - 45.0 °F 86% 29.09 in 3.0 mi SE 11.5 mph - 0.04 in Rain Light Rain
12:51 PM 50.0 °F - 46.9 °F 89% 29.04 in 6.0 mi SE 15.0 mph - 0.00 in Rain Light Rain
1:06 PM 50.0 °F - 46.4 °F 87% 29.02 in 2.5 mi SE 12.7 mph - 0.02 in Rain Rain
1:28 PM 50.0 °F - 46.4 °F 87% 29.03 in 3.0 mi SSW 19.6 mph 28.8 mph 0.09 in Rain Light Rain
1:51 PM 48.9 °F - 45.0 °F 86% 29.06 in 6.0 mi SSW 19.6 mph 26.5 mph 0.13 in Rain Light Rain
2:26 PM 46.4 °F 39.8 °F 41.0 °F 81% 29.06 in 6.0 mi SSW 16.1 mph 31.1 mph 0.07 in Rain Light Rain
2:51 PM 46.4 °F 40.1 °F 39.2 °F 76% 29.06 in 9.0 mi SSW 15.0 mph 23.0 mph N/A   Overcast
3:51 PM 44.1 °F 38.1 °F 37.0 °F 76% 29.10 in 9.0 mi SW 11.5 mph - N/A   Overcast
4:45 PM 42.8 °F 37.0 °F 37.4 °F 81% 29.10 in 5.0 mi SSW 10.4 mph 18.4 mph 0.00 in Rain Light Rain
4:51 PM 41.0 °F 35.2 °F 37.0 °F 86% 29.12 in 5.0 mi South 9.2 mph - 0.01 in Rain Light Rain
5:25 PM 39.2 °F 34.2 °F 37.4 °F 93% 29.12 in 5.0 mi WSW 6.9 mph - 0.00 in Rain Light Rain
5:35 PM 39.2 °F 29.8 °F 35.6 °F 87% 29.15 in 3.0 mi NW 18.4 mph 23.0 mph 0.02 in Rain Light Rain
5:39 PM 35.6 °F 24.2 °F 33.8 °F 93% 29.15 in 3.0 mi NW 21.9 mph 29.9 mph 0.03 in Rain Light Ice Pellets
5:49 PM 35.6 °F 24.5 °F 32.0 °F 87% 29.16 in 3.0 mi NNW 20.7 mph - 0.04 in Snow Light Snow
5:51 PM 36.0 °F 25.3 °F 32.0 °F 86% 29.18 in 3.0 mi NNW 19.6 mph 27.6 mph 0.04 in Rain , Snow Light Snow
6:24 PM 35.6 °F 26.6 °F 30.2 °F 81% 29.19 in 1.5 mi NW 13.8 mph 25.3 mph 0.01 in Snow Light Snow
6:51 PM 34.0 °F 23.0 °F 30.9 °F 89% 29.22 in 1.5 mi NW 18.4 mph 25.3 mph 0.01 in Snow Light Snow
7:15 PM 35.6 °F 24.5 °F 30.2 °F 81% 29.21 in 3.0 mi NW 20.7 mph 32.2 mph 0.00 in Snow Light Snow
7:40 PM 35.6 °F 24.5 °F 30.2 °F 81% 29.23 in 5.0 mi NW 20.7 mph 32.2 mph 0.01 in Snow Light Snow
7:51 PM 36.0 °F 23.9 °F 30.9 °F 82% 29.26 in 5.0 mi WNW 25.3 mph 35.7 mph 0.01 in Snow Light Snow
8:51 PM 36.0 °F 23.2 °F 28.9 °F 76% 29.29 in 10.0 mi NW 28.8 mph 40.3 mph 0.00 in Snow Light Snow
9:51 PM 35.1 °F 23.5 °F 30.0 °F 82% 29.35 in 1.5 mi NW 21.9 mph 38.0 mph 0.00 in Snow Light Snow
10:51 PM 35.1 °F 23.5 °F 30.0 °F 82% 29.39 in 2.0 mi WNW 21.9 mph 35.7 mph 0.00 in Snow Light Snow
11:16 PM 33.8 °F 22.2 °F 30.2 °F 87% 29.40 in 1.2 mi WNW 20.7 mph 31.1 mph 0.00 in Snow Light Snow
11:35 PM 33.8 °F 21.6 °F 30.2 °F 87% 29.41 in 1.2 mi WNW 23.0 mph 32.2 mph 0.00 in Snow Light Snow
11:51 PM 33.1 °F 20.6 °F 30.0 °F 89% 29.44 in 1.0 mi WNW 23.0 mph 34.5 mph 0.00 in Snow Light Snow