AFOS product CLISFO
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CDUS46 KMTR 240829
CLISFO

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
129 AM PDT FRI OCT 24 2025

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR OCTOBER 23 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         65   1:47 PM  90    1959  71     -6       71        
  MINIMUM         56   4:49 AM  40    1949  53      3       49        
                                      1961                           
  AVERAGE         61                        62     -1       60     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          1.16 1989   0.03  -0.03     0.00     
  MONTH TO DATE    1.00                      0.47   0.53      T       
  SINCE OCT 1      1.00                      0.47   0.53      T       
  SINCE JAN 1      8.62                     13.14  -4.52    14.90     

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

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        4                         4      0        5        
  MONTH TO DATE   38                        62    -24       47        
  SINCE SEP 1     41                       108    -67      121        
  SINCE JUL 1    131                       210    -79      251        

 COOLING                                                              
  YESTERDAY        0                         1     -1        0        
  MONTH TO DATE   17                        31    -14       86        
  SINCE SEP 1     95                        87      8      110        
  SINCE JAN 1    145                       197    -52      184        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED  11   RESULTANT WIND DIRECTION   W (290)       
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    NW (300)       
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION    NW (300)       
  AVERAGE WIND SPEED    10.9                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.5                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  FOG                                                                 
  HAZE                                                                


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90          10:00 PM                                      
 LOWEST     65          12:00 PM                                      
 AVERAGE    78                                                        

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   71        91      2017                      
 MINIMUM TEMPERATURE (F)   52        41      1956                      


SUNRISE AND SUNSET                                                    
OCTOBER 24 2025.......SUNRISE   7:27 AM PDT   SUNSET   6:20 PM PDT     
OCTOBER 25 2025.......SUNRISE   7:28 AM PDT   SUNSET   6:19 PM PDT     


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




$$