337  
CDUS46 KMTR 110829  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1229 AM PST THU JAN 11 2024  
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JANUARY 10 2024
 
 
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)  
YESTERDAY  
MAXIMUM 57 12:31 PM 68 1953 58 -1 59  
MINIMUM 44 6:01 AM 29 1949 44 0 52  
AVERAGE 51 51 0 56  
 
PRECIPITATION (IN)  
YESTERDAY 0.20 1.82 2017 0.14 0.06 0.40  
MONTH TO DATE 0.85 1.30 -0.45 5.36  
SINCE OCT 1 6.18 8.27 -2.09 16.61  
SINCE JAN 1 0.85 1.30 -0.45 5.36  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE DEC 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 14 14 0 9  
MONTH TO DATE 124 140 -16 93  
SINCE DEC 1 397 562 -165 539  
SINCE JUL 1 620 1070 -450 1064  
 
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 13 RESULTANT WIND DIRECTION W (280)  
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 46 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 14.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 2:00 PM  
LOWEST 66 11:00 PM  
AVERAGE 76  
   
......................................................
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 58 69 1959  
MINIMUM TEMPERATURE (F) 44 30 1949  
 
SUNRISE AND SUNSET  
JANUARY 11 2024.......SUNRISE 7:24 AM PST SUNSET 5:11 PM PST  
JANUARY 12 2024.......SUNRISE 7:24 AM PST SUNSET 5:12 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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