Weather Almanac for San Francisco, CA

Tuesday, December 17, 2013 — View Current Weather Conditions
Tuesday, December 17, 2013
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Daily Weekly Monthly Custom
  Average Record
Temperature
Mean Temperature 50 °F  
Max Temperature 56 °F 67 °F (1958)
Min Temperature 44 °F 30 °F (1965)
Degree Days
Heating Degree Days 15  
Month to date heating degree days   235  
Since 1 July heating degree days   799  
Cooling Degree Days 0  
Month to date cooling degree days   0  
Year to date cooling degree days   164  
Moisture
Dew Point    
Average Humidity    
Maximum Humidity    
Minimum Humidity    
Precipitation
Precipitation 0.13 in 1.26 in (2005)
Month to date precipitation   2.01  
Year to date precipitation   18.63  
Since 1 July precipitation   5.55  
Wind
Wind Speed    
Max Wind Speed    
Max Gust Speed    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary
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Local Photos

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Astronomy
Dec. 17, 2013 Rise Set
Actual Time 7:18 AM PST 4:52 PM PST
Civil Twilight 6:49 AM PST 5:22 PM PST
Nautical Twilight 6:16 AM PST 5:55 PM PST
Astronomical Twilight 5:44 AM PST 6:27 PM PST
Moon 5:36 PM PST (12/17) 7:20 AM PST (12/17)
Length Of Visible Light 10h 32m
Length of Day
9h 34m
Full, 100% of the Moon is Illuminated
Dec 17
Full
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter
Jan 15
Full
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No daily or hourly history data available