Weather Service Report


118 
CDUS46 KMTR 090827
CLISFO

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
127 AM PDT WED JUL 09 2025

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JULY 8 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         72   2:18 PM  90    1985  73     -1       71        
  MINIMUM         57   5:38 AM  48    1951  55      2       56        
  AVERAGE         65                        64      1       64     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          0.23 1974   0.00   0.00     0.00     
  MONTH TO DATE    0.00                      0.00   0.00     0.00     
  SINCE OCT 1     16.11                     19.53  -3.42    20.13     
  SINCE JAN 1      7.55                     12.56  -5.01    14.80     

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

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                         2     -2        1        
  MONTH TO DATE   26                        16     10        3        
  SINCE JUN 1    169                       113     56      116        
  SINCE JUL 1     26                        16     10        3        

 COOLING                                                              
  YESTERDAY        0                         1     -1        0        
  MONTH TO DATE    0                         8     -8       26        
  SINCE JUN 1      1                        31    -30       32        
  SINCE JAN 1      7                        51    -44       43        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION   W (260)       
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     W (280)       
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION     W (280)       
  AVERAGE WIND SPEED    11.1                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.4                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  HAZE                                                                


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87          10:00 PM                                      
 LOWEST     53           1:00 PM                                      
 AVERAGE    70                                                        

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   73        94      1959                      
 MINIMUM TEMPERATURE (F)   55        47      1953                      


SUNRISE AND SUNSET                                                    
JULY  9 2025..........SUNRISE   5:56 AM PDT   SUNSET   8:33 PM PDT     
JULY 10 2025..........SUNRISE   5:57 AM PDT   SUNSET   8:33 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