825  
CDUS46 KMTR 040025  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
425 PM PST SUN DEC 03 2023  
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 3 2023
 
 
VALID TODAY AS OF 0400 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 65 2:45 PM 73 1958 60 5 50  
MINIMUM 56 4:11 AM 38 1956 46 10 45  
1968  
1976  
AVERAGE 61 53 8 48  
 
PRECIPITATION (IN)  
TODAY 0.00 1.89 2014 0.12 -0.12 0.63  
MONTH TO DATE 0.04 0.35 -0.31 1.34  
SINCE OCT 1 1.46 3.18 -1.72 2.93  
SINCE JAN 1 21.66 15.85 5.81 5.10  
 
SNOWFALL (IN)  
TODAY MM 0.0  
MONTH TO DATE T  
SINCE DEC 1 T  
SINCE JUL 1 T  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 4 12 -8 17  
MONTH TO DATE 18 36 -18 52  
SINCE DEC 1 18 36 -18 52  
SINCE JUL 1 241 544 -303 577  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 280 201 79 280    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SE (140)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 4.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 5:00 AM  
LOWEST 61 2:00 PM  
AVERAGE 74  
   
......................................................
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 75 1958  
MINIMUM TEMPERATURE (F) 46 36 2004  
 
SUNRISE AND SUNSET  
DECEMBER 3 2023......SUNRISE 7:07 AM PST SUNSET 4:51 PM PST  
DECEMBER 4 2023......SUNRISE 7:08 AM PST SUNSET 4:51 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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