Weather History for Chicago, IL

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Monday, February 4, 2013

  Actual Average Record
Temperature  
Mean Temperature -6 °C -4 °C  
Max Temperature -2 °C 0 °C 15 °C (1890)
Min Temperature -11 °C -8 °C -25 °C (1996)
Degree Days  
Heating Degree Days 44 40  
Month to date heating degree days 201 161  
Since 1 July heating degree days 3520 3851  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point -7 °C    
Average Humidity 87    
Maximum Humidity 100    
Minimum Humidity 73    
Precipitation  
Precipitation 4.83 mm 1.27 mm 3.20 mm (1924)
Month to date precipitation 0.37 0.20  
Year to date precipitation 4.00 1.93  
Snow  
Snow 6.10 cm 0.76 cm 10.92 cm (1932)
Month to date snowfall 5.2 1.4  
Since 1 July snowfall 8.7 21.9  
Snow Depth 7.62 cm    
Sea Level Pressure  
Sea Level Pressure 1013 hPa    
Wind  
Wind Speed 14 km/h (NE)    
Max Wind Speed 29 km/h    
Max Gust Speed 29 km/h    
Visibility 10 kilometers    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Feb. 04, 2013 Rise Set
Actual Time 7:00 AM CST 5:10 PM CST
Civil Twilight 6:31 AM CST 5:40 PM CST
Nautical Twilight 5:58 AM CST 6:13 PM CST
Astronomical Twilight 5:25 AM CST 6:46 PM CST
Moon 1:37 AM CST (2/4) 11:32 AM CST (2/4)
Length of Visible Light 11h 08m
Length of Day
10h 09m
Last Quarter, 37% of the Moon is Illuminated
Feb 4
Last Quarter
Feb 10
New
Feb 17
First Quarter
Feb 25
Full
Mar 4
Last Quarter

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM -6.7 °C - -7.8 °C 92% 1016.7 hPa 3.2 km Calm Calm - 0.3 mm Snow Light Snow
1:24 AM -7.0 °C -9.8 °C -8.0 °C 93% 1014.8 hPa 2.4 km SE 5.6 km/h / 1.5 m/s - 0.3 mm Snow Light Snow
1:51 AM -6.1 °C -9.6 °C -7.2 °C 92% 1015.4 hPa 2.4 km ESE 7.4 km/h / 2.1 m/s - 0.3 mm Snow Light Snow
2:14 AM -6.0 °C -10.2 °C -7.0 °C 93% 1014.1 hPa 4.0 km East 9.3 km/h / 2.6 m/s - 0.0 mm Snow Light Snow
2:22 AM -6.0 °C -10.8 °C -7.0 °C 93% 1014.1 hPa 2.4 km East 11.1 km/h / 3.1 m/s - 0.0 mm Snow Light Snow
2:47 AM -6.0 °C -11.3 °C -7.0 °C 93% 1013.4 hPa 2.4 km SE 13.0 km/h / 3.6 m/s - 0.3 mm Snow Light Snow
2:51 AM -6.1 °C -10.9 °C -7.2 °C 92% 1014.5 hPa 2.4 km SE 11.1 km/h / 3.1 m/s - 0.5 mm Snow Light Snow
3:09 AM -6.0 °C -10.8 °C -7.0 °C 93% 1013.1 hPa 1.6 km SE 11.1 km/h / 3.1 m/s - 0.3 mm Snow Light Snow
4:51 AM -6.0 °C -10.2 °C -7.0 °C 93% 1012.1 hPa 1.6 km East 9.3 km/h / 2.6 m/s - N/A Snow Light Snow
5:19 AM -6.0 °C -8.7 °C -6.0 °C 100% 1012.1 hPa 1.2 km East 5.6 km/h / 1.5 m/s - 0.3 mm Snow Light Snow
5:51 AM -5.6 °C -10.3 °C -6.1 °C 96% 1013.0 hPa 1.2 km NE 11.1 km/h / 3.1 m/s - 0.8 mm Snow Light Snow
6:24 AM -5.0 °C -10.5 °C -6.0 °C 93% 1011.4 hPa 2.0 km ENE 14.8 km/h / 4.1 m/s - 0.5 mm Snow Light Snow
6:38 AM -5.0 °C -10.1 °C -6.0 °C 93% 1011.7 hPa 2.8 km ENE 13.0 km/h / 3.6 m/s - 0.5 mm Snow Light Snow
6:51 AM -5.0 °C -10.5 °C -6.1 °C 92% 1012.7 hPa 4.0 km ENE 14.8 km/h / 4.1 m/s - 0.5 mm Snow Light Snow
6:58 AM -5.0 °C -10.1 °C -6.0 °C 93% 1011.7 hPa 4.0 km ENE 13.0 km/h / 3.6 m/s - 0.0 mm Snow Light Snow
7:37 AM -4.0 °C -8.9 °C -6.0 °C 86% 1011.1 hPa 4.8 km ESE 13.0 km/h / 3.6 m/s - 0.0 mm Snow Light Snow
7:51 AM -3.9 °C -8.7 °C -5.6 °C 88% 1012.1 hPa 6.4 km East 13.0 km/h / 3.6 m/s - 0.0 mm Snow Light Snow
8:16 AM -4.0 °C -8.9 °C -6.0 °C 86% 1011.4 hPa 8.0 km ENE 13.0 km/h / 3.6 m/s - 0.0 mm Snow Light Snow
8:51 AM -3.9 °C -8.7 °C -5.0 °C 92% 1012.3 hPa 9.7 km ENE 13.0 km/h / 3.6 m/s - 0.0 mm Snow Light Snow
9:08 AM -4.0 °C -8.4 °C -5.0 °C 93% 1011.1 hPa 12.9 km East 11.1 km/h / 3.1 m/s - 0.0 mm   Overcast
9:51 AM -3.3 °C -8.0 °C -5.6 °C 84% 1011.7 hPa 14.5 km East 13.0 km/h / 3.6 m/s - 0.0 mm   Overcast
10:51 AM -2.8 °C -6.9 °C -5.0 °C 85% 1011.7 hPa 12.9 km East 11.1 km/h / 3.1 m/s - N/A   Overcast
11:51 AM -2.2 °C -6.7 °C -5.0 °C 81% 1011.6 hPa 12.9 km NNE 13.0 km/h / 3.6 m/s - 0.0 mm   Overcast
12:49 PM -2.0 °C -6.8 °C -5.0 °C 80% 1010.0 hPa 16.1 km NNE 14.8 km/h / 4.1 m/s - 0.0 mm   Overcast
12:51 PM -2.2 °C -7.1 °C -5.0 °C 81% 1011.2 hPa 16.1 km NNE 14.8 km/h / 4.1 m/s - 0.0 mm   Overcast
1:51 PM -2.8 °C -9.6 °C -5.0 °C 85% 1011.5 hPa 16.1 km North 25.9 km/h / 7.2 m/s - 0.0 mm   Overcast
2:51 PM -2.8 °C -9.6 °C -5.0 °C 85% 1012.0 hPa 14.5 km North 25.9 km/h / 7.2 m/s - N/A   Overcast
3:03 PM -3.0 °C -10.3 °C -6.0 °C 80% 1011.1 hPa 14.5 km NNE 29.6 km/h / 8.2 m/s - N/A   Overcast
3:51 PM -2.8 °C -10.1 °C -5.6 °C 81% 1011.5 hPa 16.1 km NNE 29.6 km/h / 8.2 m/s - N/A   Overcast
4:51 PM -4.4 °C -11.7 °C -6.7 °C 84% 1012.5 hPa 16.1 km North 25.9 km/h / 7.2 m/s - N/A   Overcast
5:11 PM -4.0 °C -10.3 °C -7.0 °C 80% 1011.7 hPa 16.1 km North 20.4 km/h / 5.7 m/s - N/A   Overcast
5:51 PM -5.0 °C -11.6 °C -7.2 °C 85% 1013.6 hPa 16.1 km North 20.4 km/h / 5.7 m/s - N/A   Overcast
6:51 PM -6.1 °C -13.0 °C -8.9 °C 81% 1014.3 hPa 16.1 km North 20.4 km/h / 5.7 m/s - N/A   Overcast
7:14 PM -7.0 °C -14.1 °C -9.0 °C 86% 1013.1 hPa 16.1 km North 20.4 km/h / 5.7 m/s - N/A   Mostly Cloudy
7:51 PM -7.8 °C -13.5 °C -10.0 °C 84% 1014.3 hPa 16.1 km North 13.0 km/h / 3.6 m/s - N/A   Mostly Cloudy
8:51 PM -7.2 °C -11.6 °C -10.0 °C 81% 1015.1 hPa 16.1 km NNW 9.3 km/h / 2.6 m/s - N/A   Mostly Cloudy
9:51 PM -7.8 °C -12.3 °C -10.6 °C 81% 1014.7 hPa 16.1 km North 9.3 km/h / 2.6 m/s - N/A   Overcast
10:51 PM -9.4 °C -15.4 °C -12.8 °C 77% 1014.9 hPa 16.1 km NNW 13.0 km/h / 3.6 m/s - N/A   Mostly Cloudy
11:51 PM -10.6 °C -14.9 °C -13.9 °C 77% 1015.1 hPa 16.1 km NNW 7.4 km/h / 2.1 m/s - N/A   Mostly Cloudy