744  
CDUS46 KMTR 060033  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
533 PM PDT FRI SEP 05 2025  
   
...............................  
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 5 2025  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 70 2:49 PM 97 2022 75 -5 76  
MINIMUM 60 4:48 AM 45 1954 56 4 53  
AVERAGE 65 66 -1 65  
 
PRECIPITATION (IN)  
TODAY 0.00 0.03 1945 0.00 0.00 0.00  
MONTH TO DATE 0.00 0.00 0.00 0.00  
SINCE OCT 1 16.11 19.57 -3.46 20.23  
SINCE JAN 1 7.55 12.60 -5.05 14.90  
 
SNOWFALL (IN)  
TODAY MM 0.0  
MONTH TO DATE T  
SINCE SEP 1 T  
SINCE JUL 1 T  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 0 1 -1 0  
MONTH TO DATE 1 7 -6 1  
SINCE SEP 1 1 7 -6 1  
SINCE JUL 1 91 109 -18 131  
 
COOLING  
TODAY 0 2 -2 0  
MONTH TO DATE 6 10 -4 3  
SINCE SEP 1 6 10 -4 3  
SINCE JAN 1 56 120 -64 77    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 16 RESULTANT WIND DIRECTION W (280)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 16.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 4:00 AM  
LOWEST 65 1:00 PM  
AVERAGE 78  
   
......................................................  
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 102 2020  
MINIMUM TEMPERATURE (F) 56 47 1950  
 
SUNRISE AND SUNSET  
SEPTEMBER 5 2025.....SUNRISE 6:43 AM PDT SUNSET 7:32 PM PDT  
SEPTEMBER 6 2025.....SUNRISE 6:44 AM PDT SUNSET 7:30 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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