AFOS product CLISFO
Dates interpreted at 00:00 UTC
Download date range (UTC midnight)
Bulk Download
178 
CDUS46 KMTR 060828
CLISFO

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
128 AM PDT TUE MAY 06 2025

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 5 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         81   3:08 PM  91    1987  67     14       60        
  MINIMUM         53   2:13 AM  41    1965  51      2       48        
  AVERAGE         67                        59      8       54     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          0.24 1983   0.02  -0.02     0.00     
  MONTH TO DATE    0.01                      0.10  -0.09     0.95     
  SINCE OCT 1     16.01                     19.01  -3.00    20.13     
  SINCE JAN 1      7.45                     12.04  -4.59    14.80     

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

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                         6     -6       11        
  MONTH TO DATE   34                        33      1       36        
  SINCE MAR 1    570                       563      7      525        
  SINCE JUL 1   2103                      2242   -139     1666        

 COOLING                                                              
  YESTERDAY        2                         0      2        0        
  MONTH TO DATE    2                         0      2        0        
  SINCE MAR 1      5                         6     -1        1        
  SINCE JAN 1      5                         6     -1        1        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION  NW (330)       
  HIGHEST WIND SPEED    29   HIGHEST WIND DIRECTION     N (350)       
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION     N (360)       
  AVERAGE WIND SPEED    11.4                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.3                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  HAZE                                                                


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    75          11:00 PM                                      
 LOWEST     20           4:00 PM                                      
 AVERAGE    48                                                        

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   67        87      1949                      
 MINIMUM TEMPERATURE (F)   51        41      1968                      


SUNRISE AND SUNSET                                                    
MAY  6 2025...........SUNRISE   6:08 AM PDT   SUNSET   8:05 PM PDT     
MAY  7 2025...........SUNRISE   6:07 AM PDT   SUNSET   8:06 PM PDT     


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




$$