AFOS product CLISFO
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CDUS46 KMTR 210826
CLISFO

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
126 AM PDT SAT JUN 21 2025

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JUNE 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         63   2:17 PM  96    1973  72     -9       63        
                                      2008                           
  MINIMUM         53  11:59 PM  49    1946  54     -1       51        
                                      1953                           
  AVERAGE         58                        63     -5       57     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          0.01 1951   0.00   0.00     0.00     
  MONTH TO DATE    0.00                      0.11  -0.11     0.00     
  SINCE OCT 1     16.11                     19.50  -3.39    20.13     
  SINCE JAN 1      7.55                     12.53  -4.98    14.80     

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

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        7                         3      4        8        
  MONTH TO DATE   99                        71     28       76        
  SINCE JUN 1     99                        71     28       76        
  SINCE JUL 1   2349                      2450   -101     1839        

 COOLING                                                              
  YESTERDAY        0                         1     -1        0        
  MONTH TO DATE    0                        17    -17        6        
  SINCE JUN 1      0                        17    -17        6        
  SINCE JAN 1      6                        37    -31       17        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED  24   RESULTANT WIND DIRECTION   W (280)       
  HIGHEST WIND SPEED    44   HIGHEST WIND DIRECTION     W (280)       
  HIGHEST GUST SPEED    58   HIGHEST GUST DIRECTION     W (280)       
  AVERAGE WIND SPEED    23.9                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.4                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  FOG                                                                 
  HAZE                                                                


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           2:00 AM                                      
 LOWEST     58           1:00 PM                                      
 AVERAGE    72                                                        

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   72        98      2022                      
 MINIMUM TEMPERATURE (F)   54        46      1953                      


SUNRISE AND SUNSET                                                    
JUNE 21 2025..........SUNRISE   5:48 AM PDT   SUNSET   8:34 PM PDT     
JUNE 22 2025..........SUNRISE   5:49 AM PDT   SUNSET   8:35 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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