963  
CDUS46 KMTR 050033  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
433 PM PST SAT JAN 04 2025  
   
...............................  
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JANUARY 4 2025  
 
VALID TODAY AS OF 0400 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 55 3:56 PM 66 2014 57 -2 61  
MINIMUM 46 5:09 AM 29 1949 44 2 47  
AVERAGE 51 51 0 54  
 
PRECIPITATION (IN)  
TODAY 0.00 5.59 1982 0.13 -0.13 0.00  
MONTH TO DATE 0.12 0.50 -0.38 0.44  
SINCE OCT 1 8.68 7.47 1.21 5.77  
SINCE JAN 1 0.12 0.50 -0.38 0.44  
 
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 14 14 0 11  
MONTH TO DATE 50 56 -6 42  
SINCE DEC 1 360 478 -118 315  
SINCE JUL 1 901 986 -85 538  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION E (110)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 3.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 4:00 AM  
LOWEST 80 3:00 PM  
AVERAGE 90  
   
......................................................  
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 66 2014  
MINIMUM TEMPERATURE (F) 44 26 1949  
 
SUNRISE AND SUNSET  
JANUARY 4 2025.......SUNRISE 7:25 AM PST SUNSET 5:05 PM PST  
JANUARY 5 2025.......SUNRISE 7:25 AM PST SUNSET 5:06 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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