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091 
CDUS46 KMTR 180826
CLISTS


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1226 AM PST FRI DEC 18 2015


................................... 

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR DECEMBER 17 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         52    252 PM  67    1998  56     -4       56       
  MINIMUM         38    310 AM  24    2008  36      2       47       
  AVERAGE         45                        46     -1       52      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.02          0.96 2010   0.25  -0.23     0.29    
  MONTH TO DATE    3.94                      3.27   0.67    13.16    
  SINCE OCT 1      5.51                      9.99  -4.48    17.22    
  SINCE JAN 1     11.97                     32.52 -20.55    30.63    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       20                                        13       
  MONTH TO DATE  257                                       171       
  SINCE DEC 1    257                                       171       
  SINCE JUL 1    702                                       529       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1    596                                       499       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION   W (280)      
  HIGHEST WIND SPEED     7   HIGHEST WIND DIRECTION    NW (300)      
  HIGHEST GUST SPEED     8   HIGHEST GUST DIRECTION    NW (300)      
  AVERAGE WIND SPEED     0.6                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.9                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  FOG                                                                
  FOG W/VISIBILITY <= 1/4 MILE                                       

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           500 AM                                     
 LOWEST     66          1100 AM                                     
 AVERAGE    83                                                       

..........................................................

                                                                     
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   56        64      1998                    
 MINIMUM TEMPERATURE (F)   36        24      2008                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 18 2015......SUNRISE   723 AM PST   SUNSET   452 PM PST   
DECEMBER 19 2015......SUNRISE   724 AM PST   SUNSET   453 PM PST   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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