305  
CDUS46 KMTR 040836  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1236 AM PST SAT JAN 04 2025  
   
...............................  
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JANUARY 3 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 61 1:12 PM 69 2000 57 4 59  
MINIMUM 50 10:37 PM 31 1950 44 6 49  
AVERAGE 56 51 5 54  
 
PRECIPITATION (IN)  
YESTERDAY 0.12 1.33 1974 0.12 0.00 0.18  
MONTH TO DATE 0.12 0.37 -0.25 0.44  
SINCE OCT 1 8.68 7.34 1.34 5.77  
SINCE JAN 1 0.12 0.37 -0.25 0.44  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE DEC 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 14 -5 11  
MONTH TO DATE 36 42 -6 31  
SINCE DEC 1 346 464 -118 304  
SINCE JUL 1 887 972 -85 527  
 
COOLING  
YESTERDAY 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 4 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 6.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 7:00 AM  
LOWEST 78 2:00 PM  
AVERAGE 89  
   
......................................................  
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 66 2014  
MINIMUM TEMPERATURE (F) 44 29 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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