Weather Almanac for Petaluma, CA

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Sunday, September 1, 2013

  Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 66 °F  
Max Temperature 81 °F 99 °F (2002)
Min Temperature 52 °F 45 °F (1999)
Degree Days  
Heating Degree Days    
Month to date heating degree days    
Since 1 July heating degree days    
Cooling Degree Days    
Month to date cooling degree days    
Year to date cooling degree days    
Moisture  
Dew Point    
Average Humidity    
Maximum Humidity    
Minimum Humidity    
Precipitation  
Precipitation - 0.01 in (2000)
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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Astronomy

Sep. 01, 2013 Rise Set
Actual Time 6:40 AM PDT 7:39 PM PDT
Civil Twilight 6:13 AM PDT 8:06 PM PDT
Nautical Twilight 5:41 AM PDT 8:38 PM PDT
Astronomical Twilight 5:07 AM PDT 9:11 PM PDT
Moon 3:09 AM PDT (9/1) 5:18 PM PDT (9/1)
Length of Visible Light 13h 53m
Length of Day
12h 59m
Waning Crescent, 13% of the Moon is Illuminated
Sep 1
Waning Crescent
Sep 5
New
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter