Weather Almanac for Petaluma, CA

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Saturday, August 31, 2013

  Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 66 °F  
Max Temperature 81 °F 94 °F (2005)
Min Temperature 52 °F 42 °F (1939)
Degree Days  
Heating Degree Days    
Month to date heating degree days    
Since 1 June heating degree days    
Since 1 July heating degree days    
Cooling Degree Days    
Month to date cooling degree days    
Year to date cooling degree days    
Since 1 June cooling degree days    
Moisture  
Dew Point    
Average Humidity    
Maximum Humidity    
Minimum Humidity    
Precipitation  
Precipitation - 0.31 in (1984)
Month to date precipitation    
Year to date precipitation    
Since 1 July precipitation    
Wind  
Wind Speed    
Max Wind Speed    
Max Gust Speed    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Aug. 31, 2013 Rise Set
Actual Time 6:39 AM PDT 7:41 PM PDT
Civil Twilight 6:12 AM PDT 8:08 PM PDT
Nautical Twilight 5:40 AM PDT 8:40 PM PDT
Astronomical Twilight 5:06 AM PDT 9:13 PM PDT
Moon 2:15 AM PDT (8/31) 4:41 PM PDT (8/31)
Length of Visible Light 13h 55m
Length of Day
13h 01m
Waning Crescent, 20% of the Moon is Illuminated
Aug 31
Waning Crescent
Sep 5
New
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter

No daily or hourly history data available