Weather Almanac for Petaluma, CA

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Wednesday, August 21, 2013

  Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 66 °F  
Max Temperature 80 °F 90 °F (2009)
Min Temperature 52 °F 47 °F (2001)
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 - 0.30 in (2003)
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. 21, 2013 Rise Set
Actual Time 6:30 AM PDT 7:55 PM PDT
Civil Twilight 6:02 AM PDT 8:23 PM PDT
Nautical Twilight 5:29 AM PDT 8:56 PM PDT
Astronomical Twilight 4:54 AM PDT 9:31 PM PDT
Moon 8:09 PM PDT (8/21) 7:15 AM PDT (8/21)
Length of Visible Light 14h 20m
Length of Day
13h 24m
Full, 99% of the Moon is Illuminated
Aug 21
Full
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter
Sep 19
Full

No daily or hourly history data available