Weather Service Report


746 
CDUS46 KMTR 230854
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
153 AM PDT THU MAY 23 2013


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 22 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2013


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         62    100 PM  83    1954  68     -6       64       
  MINIMUM         48    528 AM  44    1952  52     -4       52       
                                      1909                          
  AVERAGE         55                        60     -5       58      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.20 1958   0.02  -0.02     0.00    
  MONTH TO DATE    T                         0.38  -0.38      T      
  SINCE JUL 1     12.83                     20.45  -7.62    13.24    
  SINCE JAN 1      1.83                     12.88 -11.05    10.37    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0                                 
  MONTH TO DATE    0.0                                               
  SINCE MAR 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       10                         5      5        7       
  MONTH TO DATE   98                       136    -38      136       
  SINCE MAR 1    605                       698    -93      732       
  SINCE JUL 1   2489                      2504    -15     2643       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE   23                         0     23        2       
  SINCE MAR 1     27                         6     21        7       
  SINCE JAN 1     27                         6     21        7       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  18   RESULTANT WIND DIRECTION   W (280)      
  HIGHEST WIND SPEED    36   HIGHEST WIND DIRECTION     W (270)      
  HIGHEST GUST SPEED    41   HIGHEST GUST DIRECTION     W (280)      
  AVERAGE WIND SPEED    18.2                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.2                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    74           900 PM                                     
 LOWEST     36           900 AM                                     
 AVERAGE    55                                                       

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

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   68        88      2000                    
 MINIMUM TEMPERATURE (F)   52        46      1954                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 23 2013...........SUNRISE   554 AM PDT   SUNSET   819 PM PDT   
MAY 24 2013...........SUNRISE   553 AM PDT   SUNSET   820 PM PDT   

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




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Western Regional Climate Center, wrcc@dri.edu