AFOS product CLISFO
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CLISFO

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1226 AM PST TUE JAN 21 2025

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JANUARY 20 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1927 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         61   3:50 PM  67    1976  58      3       59        
                                      2021                           
  MINIMUM         43   7:46 AM  30    1963  45     -2       54        
  AVERAGE         52                        51      1       57     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          2.49 1964   0.12  -0.12     0.17     
  MONTH TO DATE    0.12                      2.57  -2.45     2.42     
  SINCE OCT 1      8.68                      9.54  -0.86     7.75     
  SINCE JAN 1      0.12                      2.57  -2.45     2.42     

SNOWFALL (IN)                                                              
  YESTERDAY       MM             0.0                                  
  MONTH TO DATE    T                                                  
  SINCE DEC 1      T                                                  
  SINCE JUL 1      T                                                  

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       13                        14     -1        8        
  MONTH TO DATE  232                       280    -48      243        
  SINCE DEC 1    542                       702   -160      516        
  SINCE JUL 1   1083                      1210   -127      739        

 COOLING                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE    0                         0      0        0        
  SINCE DEC 1      0                         0      0        0        
  SINCE JAN 1      0                         0      0        0        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION   E (100)       
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION    NE (50)        
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    NE (50)        
  AVERAGE WIND SPEED     7.9                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.2                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  FOG                                                                 


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           8:00 AM                                      
 LOWEST     34           6:00 PM                                      
 AVERAGE    67                                                        

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   58        68      2014                      
 MINIMUM TEMPERATURE (F)   45        30      1962                      


SUNRISE AND SUNSET                                                    
JANUARY 21 2025.......SUNRISE   7:20 AM PST   SUNSET   5:22 PM PST     
JANUARY 22 2025.......SUNRISE   7:20 AM PST   SUNSET   5:23 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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