303  
CDUS46 KMTR 030027  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
527 PM PDT SAT SEP 02 2023  
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 2 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1927 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 74 2:48 PM 104 2017 75 -1 68  
MINIMUM 63 4:17 AM 49 1946 56 7 55  
AVERAGE 69 65 4 62  
 
PRECIPITATION (IN)  
TODAY 0.00 T 1979 0.00 0.00 0.00  
1985  
2000  
MONTH TO DATE T 0.00 0.00 0.00  
SINCE OCT 1 31.42 19.57 11.85 18.18  
SINCE JAN 1 20.17 12.60 7.57 1.90  
 
SNOWFALL (IN)  
TODAY MM 0.0  
MONTH TO DATE MM  
SINCE SEP 1 MM  
SINCE JUL 1 MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 0 2 -2 3  
MONTH TO DATE 0 4 -4 4  
SINCE SEP 1 0 4 -4 4  
SINCE JUL 1 47 106 -59 65  
 
COOLING  
TODAY 4 2 2 0  
MONTH TO DATE 5 4 1 0  
SINCE SEP 1 5 4 1 0  
SINCE JAN 1 144 114 30 153    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 0 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 5.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 1:00 AM  
LOWEST 55 2:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 93 1961  
MINIMUM TEMPERATURE (F) 56 50 1945  
1947  
1970  
 
SUNRISE AND SUNSET  
SEPTEMBER 2 2023.....SUNRISE 6:41 AM PDT SUNSET 7:37 PM PDT  
SEPTEMBER 3 2023.....SUNRISE 6:41 AM PDT SUNSET 7:36 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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