110  
CDUS46 KMTR 220025  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
525 PM PDT SAT SEP 21 2024  
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 21 2024
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1927 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 70 1:46 PM 95 2003 75 -5 74  
MINIMUM 54 3:18 AM 45 1955 56 -2 57  
AVERAGE 62 65 -3 66  
 
PRECIPITATION (IN)  
TODAY 0.00 0.23 2013 0.00 0.00 0.00  
MONTH TO DATE 0.00 0.03 -0.03 T  
SINCE OCT 1 20.23 19.60 0.63 31.42  
SINCE JAN 1 14.90 12.63 2.27 20.17  
 
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 3 2 1 0  
MONTH TO DATE 61 26 35 0  
SINCE SEP 1 61 26 35 0  
SINCE JUL 1 191 128 63 47  
 
COOLING  
TODAY 0 2 -2 1  
MONTH TO DATE 3 42 -39 35  
SINCE SEP 1 3 42 -39 35  
SINCE JAN 1 77 152 -75 174    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NW (310)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 6.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 12:00 AM  
LOWEST 63 1:00 PM  
AVERAGE 78  
   
......................................................
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 91 1946  
MINIMUM TEMPERATURE (F) 56 48 1981  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2024.....SUNRISE 6:57 AM PDT SUNSET 7:07 PM PDT  
SEPTEMBER 22 2024.....SUNRISE 6:58 AM PDT SUNSET 7:05 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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