707  
CDUS46 KMTR 290835  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
135 AM PDT FRI AUG 29 2025  
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 28 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 75 1:36 PM 95 2009 74 1 71  
MINIMUM 59 5:23 AM 49 1945 56 3 56  
1952  
AVERAGE 67 65 2 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 1982 0.00 0.00 0.00  
1986  
1987  
MONTH TO DATE T 0.03 -0.03 0.10  
SINCE OCT 1 16.11 19.56 -3.45 20.23  
SINCE JAN 1 7.55 12.59 -5.04 14.90  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE JUN 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 1  
MONTH TO DATE 21 38 -17 78  
SINCE JUN 1 233 193 40 241  
SINCE JUL 1 90 96 -6 128  
 
COOLING  
YESTERDAY 2 2 0 0  
MONTH TO DATE 29 36 -7 14  
SINCE JUN 1 31 85 -54 63  
SINCE JAN 1 37 105 -68 74    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION W (290)  
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 11.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 6:00 AM  
LOWEST 55 2:00 PM  
AVERAGE 69  
   
......................................................
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 98 1968  
MINIMUM TEMPERATURE (F) 56 49 1955  
 
SUNRISE AND SUNSET  
AUGUST 29 2025........SUNRISE 6:38 AM PDT SUNSET 7:42 PM PDT  
AUGUST 30 2025........SUNRISE 6:38 AM PDT SUNSET 7:41 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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