AFOS product CLISFO
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CDUS46 KMTR 230845
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1245 AM PST FRI DEC 23 2016


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 22 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         58    245 PM  68    1999  56      2       59       
  MINIMUM         42    739 AM  27    1990  44     -2       51       
  AVERAGE         50                        50      0       55      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.99 1955   0.15  -0.15     0.13    
  MONTH TO DATE    3.98                      2.74   1.24     3.11    
  SINCE OCT 1      8.30                      6.07   2.23     4.53    
  SINCE JAN 1     20.74                     19.36   1.38     8.18    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0                                 
  MONTH TO DATE    0.0                                               
  SINCE DEC 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       15                        15      0       10       
  MONTH TO DATE  288                       310    -22      272       
  SINCE DEC 1    288                       310    -22      272       
  SINCE JUL 1    702                       874   -172      629       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1    142                       164    -22      327       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION  NW (300)      
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     W (290)      
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     W (290)      
  AVERAGE WIND SPEED     4.4                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    86           700 PM                                     
 LOWEST     62           300 PM                                     
 AVERAGE    74                                                       

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

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   56        68      2014                    
 MINIMUM TEMPERATURE (F)   44        28      1990                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 23 2016......SUNRISE   722 AM PST   SUNSET   456 PM PST   
DECEMBER 24 2016......SUNRISE   722 AM PST   SUNSET   457 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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