Weather History for Chicago, IL

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Sunday, February 26, 2012

  Actual Average Record
Temperature  
Mean Temperature 35 °F 31 °F  
Max Temperature 53 °F 39 °F 64 °F (2000)
Min Temperature 17 °F 24 °F -1 °F (1963)
Degree Days  
Heating Degree Days 30 34  
Month to date heating degree days 842 977  
Since 1 July heating degree days 3892 4667  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 23 °F    
Average Humidity 63    
Maximum Humidity 84    
Minimum Humidity 41    
Precipitation  
Precipitation 0.00 in 0.07 in 1.95 in (2009)
Month to date precipitation 1.35 1.63  
Year to date precipitation 3.21 3.36  
Snow  
Snow 0.00 in 0.30 in 4.80 in (2013)
Month to date snowfall 5.6 8.6  
Since 1 July snowfall 19.5 29.1  
Snow Depth 1.00 in    
Sea Level Pressure  
Sea Level Pressure 30.13 in    
Wind  
Wind Speed 14 mph (South)    
Max Wind Speed 28 mph    
Max Gust Speed 37 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Feb. 26, 2012 Rise Set
Actual Time 6:32 AM CST 5:37 PM CST
Civil Twilight 6:04 AM CST 6:05 PM CST
Nautical Twilight 5:31 AM CST 6:38 PM CST
Astronomical Twilight 4:59 AM CST 7:10 PM CST
Moon 8:21 AM CST (2/26) 10:41 PM CST (2/26)
Length of Visible Light 12h 01m
Length of Day
11h 05m
Waxing Crescent, 21% of the Moon is Illuminated
Feb 26
Waxing Crescent
Feb 29
First Quarter
Mar 8
Full
Mar 14
Last Quarter
Mar 22
New

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 19.0 °F 13.9 °F 12.9 °F 77% 30.32 in 10.0 mi SE 3.5 mph - N/A   Partly Cloudy
1:51 AM 18.0 °F 11.1 °F 14.0 °F 84% 30.33 in 9.0 mi SSE 4.6 mph - N/A   Clear
2:51 AM 23.0 °F 13.9 °F 15.8 °F 74% 30.27 in 10.0 mi SE 8.1 mph - N/A   Mostly Cloudy
3:51 AM 21.9 °F 11.7 °F 16.0 °F 78% 30.31 in 10.0 mi SSE 9.2 mph - N/A   Mostly Cloudy
4:51 AM 23.0 °F 11.7 °F 15.1 °F 72% 30.28 in 10.0 mi SE 11.5 mph - N/A   Clear
5:51 AM 23.0 °F 11.7 °F 15.8 °F 74% 30.24 in 10.0 mi SE 11.5 mph - N/A   Partly Cloudy
6:51 AM 24.1 °F 13.1 °F 17.1 °F 75% 30.26 in 10.0 mi SSE 11.5 mph - N/A   Partly Cloudy
7:51 AM 27.0 °F 14.3 °F 18.0 °F 69% 30.23 in 10.0 mi SSE 17.3 mph - N/A   Partly Cloudy
8:51 AM 30.0 °F 17.5 °F 19.9 °F 66% 30.21 in 10.0 mi South 19.6 mph 25.3 mph N/A   Partly Cloudy
9:51 AM 34.0 °F 23.0 °F 21.9 °F 61% 30.16 in 10.0 mi SSE 18.4 mph - N/A   Partly Cloudy
10:51 AM 37.0 °F 25.9 °F 23.0 °F 57% 30.13 in 10.0 mi South 23.0 mph 28.8 mph N/A   Scattered Clouds
11:51 AM 39.9 °F 31.4 °F 25.0 °F 55% 30.09 in 10.0 mi South 16.1 mph 27.6 mph N/A   Partly Cloudy
12:51 PM 44.1 °F 35.7 °F 27.0 °F 51% 30.03 in 10.0 mi South 20.7 mph 29.9 mph N/A   Partly Cloudy
1:51 PM 46.9 °F - 28.0 °F 48% 30.00 in 10.0 mi South 21.9 mph 34.5 mph N/A   Clear
2:51 PM 50.0 °F - 28.0 °F 43% 30.00 in 10.0 mi SSW 23.0 mph 36.8 mph N/A   Clear
3:51 PM 51.1 °F - 28.9 °F 43% 29.98 in 10.0 mi SSW 18.4 mph 27.6 mph N/A   Partly Cloudy
4:51 PM 52.0 °F - 28.0 °F 40% 29.99 in 10.0 mi SSW 20.7 mph 31.1 mph N/A   Partly Cloudy
5:51 PM 45.0 °F 39.3 °F 30.0 °F 56% 30.00 in 10.0 mi South 11.5 mph - N/A   Partly Cloudy
6:51 PM 45.0 °F 38.9 °F 30.9 °F 58% 30.01 in 10.0 mi South 12.7 mph - N/A   Partly Cloudy
7:51 PM 44.1 °F 37.7 °F 30.9 °F 60% 30.01 in 10.0 mi South 12.7 mph - N/A   Clear
8:51 PM 45.0 °F 39.7 °F 30.0 °F 56% 30.01 in 10.0 mi SSW 10.4 mph - N/A   Clear
9:51 PM 43.0 °F 38.2 °F 30.0 °F 60% 30.05 in 10.0 mi West 8.1 mph - N/A   Clear
10:51 PM 42.1 °F 36.6 °F 30.0 °F 62% 30.07 in 10.0 mi West 9.2 mph - N/A   Clear
11:51 PM 41.0 °F 34.7 °F 23.0 °F 49% 30.08 in 10.0 mi West 10.4 mph - N/A   Clear