Weather History for Chicago, IL

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Saturday, May 1, 2010

  Actual Average Record
Temperature  
Mean Temperature 64 °F 54 °F  
Max Temperature 70 °F 65 °F 90 °F (1951)
Min Temperature 58 °F 44 °F 30 °F (1943)
Degree Days  
Heating Degree Days 1 11  
Month to date heating degree days 1 11  
Since 1 July heating degree days 5781 6078  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 23 10  
Moisture  
Dew Point -    
Average Humidity 71    
Maximum Humidity 90    
Minimum Humidity 52    
Precipitation  
Precipitation 0.11 in 0.11 in 2.35 in (1873)
Month to date precipitation 0.11 0.11  
Year to date precipitation 7.44 9.51  
Snow  
Snow 0.00 in 0.00 in 1.60 in (1940)
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 54.2 36.4  
Snow Depth -    
Wind  
Wind Speed 9 mph (North)    
Max Wind Speed 20 mph    
Max Gust Speed 25 mph    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 01, 2010 Rise Set
Actual Time 5:47 AM CDT 7:50 PM CDT
Civil Twilight 5:17 AM CDT 8:21 PM CDT
Nautical Twilight 4:40 AM CDT 8:58 PM CDT
Astronomical Twilight 3:59 AM CDT 9:39 PM CDT
Moon 11:38 PM CDT (5/1) 7:43 AM CDT (5/1)
Length of Visible Light 15h 03m
Length of Day
14h 02m
Waning Gibbous, 88% of the Moon is Illuminated
May 1
Waning Gibbous
May 5
Last Quarter
May 13
New
May 20
First Quarter
May 27
Full

Hourly Weather History & Observations

Time (CDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 64.9 °F 59.0 °F 81% 29.50 in 10.0 mi SW 11.5 mph 21.9 mph 0.00 in Rain Light Rain
1:51 AM 62.1 °F 57.9 °F 86% 29.47 in 10.0 mi South 10.4 mph - 0.00 in   Overcast
2:51 AM 62.1 °F 57.9 °F 86% 29.52 in 10.0 mi SSW 11.5 mph - N/A   Overcast
3:51 AM 62.6 °F 57.2 °F 82% 29.53 in 10.0 mi SSW 9.2 mph - N/A   Overcast
4:51 AM 61.0 °F 57.0 °F 87% 29.56 in 10.0 mi SSW 11.5 mph - N/A   Overcast
5:51 AM 61.0 °F 57.0 °F 87% 29.56 in 10.0 mi SSW 9.2 mph - N/A   Mostly Cloudy
6:51 AM 61.0 °F 57.9 °F 90% 29.59 in 10.0 mi SSW 10.4 mph - N/A   Mostly Cloudy
7:51 AM 63.0 °F 59.0 °F 87% 29.59 in 10.0 mi SW 11.5 mph - N/A   Mostly Cloudy
8:51 AM 64.9 °F 57.0 °F 75% 29.60 in 10.0 mi SW 13.8 mph 21.9 mph N/A   Mostly Cloudy
9:10 AM 66.2 °F 57.2 °F 73% 29.62 in 10.0 mi SW 15.0 mph 20.7 mph N/A   Mostly Cloudy
9:39 AM 66.2 °F 57.2 °F 73% 29.61 in 10.0 mi SSW 12.7 mph - N/A   Mostly Cloudy
9:51 AM 66.9 °F 55.9 °F 68% 29.59 in 10.0 mi WSW 11.5 mph - N/A   Mostly Cloudy
10:51 AM 66.9 °F 55.0 °F 66% 29.62 in 10.0 mi WSW 11.5 mph - N/A   Mostly Cloudy
11:51 AM 68.0 °F 54.0 °F 61% 29.65 in 10.0 mi SSW 12.7 mph - N/A   Overcast
12:51 PM 68.0 °F 53.1 °F 59% 29.62 in 10.0 mi South 13.8 mph - N/A   Mostly Cloudy
1:51 PM 66.9 °F 50.0 °F 54% 29.63 in 10.0 mi SSW 15.0 mph - N/A   Mostly Cloudy
2:51 PM 68.0 °F 51.1 °F 55% 29.63 in 10.0 mi SW 12.7 mph 23.0 mph N/A   Overcast
3:51 PM 69.1 °F 51.1 °F 53% 29.61 in 10.0 mi SW 8.1 mph 17.3 mph N/A   Overcast
4:51 PM 66.0 °F 48.0 °F 52% 29.65 in 10.0 mi WSW 12.7 mph 20.7 mph 0.00 in Rain Light Rain
5:51 PM 64.9 °F 50.0 °F 58% 29.61 in 10.0 mi SW 6.9 mph - 0.00 in   Mostly Cloudy
6:51 PM 66.0 °F 48.0 °F 52% 29.59 in 10.0 mi SSW 6.9 mph - N/A   Mostly Cloudy
7:51 PM 63.0 °F 46.9 °F 56% 29.61 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
8:51 PM 62.1 °F 46.9 °F 58% 29.65 in 10.0 mi WSW 5.8 mph - N/A   Mostly Cloudy
9:51 PM 59.0 °F 50.0 °F 72% 29.63 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
10:51 PM 60.1 °F 52.0 °F 75% 29.64 in 10.0 mi SSW 6.9 mph - N/A   Overcast
11:51 PM 59.0 °F 53.1 °F 81% 29.61 in 10.0 mi Calm Calm - 0.00 in   Overcast