Weather Almanac for Petaluma, CA

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Thursday, August 29, 2013

  Forecast Average (KAPC) Record (KAPC)
Mean Temperature 68 °F 66 °F  
Max Temperature 81 °F 81 °F 99 °F (2009)
Min Temperature 56 °F 52 °F 46 °F (2005)
Degree Days  
Heating Degree Days 0    
Month to date heating degree days    
Since 1 June heating degree days    
Since 1 July heating degree days    
Cooling Degree Days 3    
Month to date cooling degree days    
Year to date cooling degree days    
Since 1 June cooling degree days    
Growing Degree Days 18 (Base 50)    
Dew Point      
Average Humidity 67    
Maximum Humidity 93    
Minimum Humidity 51    
Precipitation   - 0.03 in (1953)
Month to date precipitation    
Year to date precipitation    
Since 1 July precipitation    
Wind Speed 8 mph    
Max Wind Speed 12 mph    
Max Gust Speed      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Aug. 29, 2013 Rise Set
Actual Time 6:37 AM PDT 7:44 PM PDT
Civil Twilight 6:10 AM PDT 8:11 PM PDT
Nautical Twilight 5:38 AM PDT 8:43 PM PDT
Astronomical Twilight 5:04 AM PDT 9:17 PM PDT
Moon 12:35 AM PDT (8/29) 3:14 PM PDT (8/29)
Length of Visible Light 14h 00m
Length of Day
13h 06m
Last Quarter, 37% of the Moon is Illuminated
Aug 29
Last Quarter
Sep 5
Sep 12
First Quarter
Sep 19
Sep 26
Last Quarter

No daily or hourly history data available