522  
CDUS46 KMTR 291218  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
518 AM PDT SUN OCT 29 2023  
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR OCTOBER 28 2023
 
 
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)  
YESTERDAY  
MAXIMUM 70 2:19 PM 85 2003 70 0 66  
MINIMUM 49 6:24 AM 40 1954 52 -3 48  
AVERAGE 60 61 -1 57  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.07 1981 0.04 -0.04 0.00  
MONTH TO DATE T 0.67 -0.67 0.01  
SINCE OCT 1 T 0.67 -0.67 0.01  
SINCE JAN 1 20.20 13.34 6.86 2.18  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE SEP 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 5 5 0 8  
MONTH TO DATE 22 83 -61 106  
SINCE SEP 1 28 129 -101 119  
SINCE JUL 1 75 231 -156 180  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 86 33 53 13  
SINCE SEP 1 134 89 45 127  
SINCE JAN 1 273 199 74 280    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION W (290)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 8.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 6:00 AM  
LOWEST 32 11:00 PM  
AVERAGE 58  
   
......................................................
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 82 1955  
MINIMUM TEMPERATURE (F) 52 42 1954  
 
SUNRISE AND SUNSET  
OCTOBER 29 2023.......SUNRISE 7:31 AM PDT SUNSET 6:15 PM PDT  
OCTOBER 30 2023.......SUNRISE 7:32 AM PDT SUNSET 6:13 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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