242  
CDUS46 KMTR 180829  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
129 AM PDT SUN AUG 18 2024  
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 17 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 73 1:16 PM 82 1988 73 0 75  
1993  
2020  
MINIMUM 58 3:20 AM 48 1945 57 1 60  
1952  
AVERAGE 66 65 1 68  
 
PRECIPITATION (IN)  
YESTERDAY T 0.03 1976 0.00 0.00 0.00  
MONTH TO DATE T 0.02 -0.02 0.00  
SINCE OCT 1 20.13 19.55 0.58 31.39  
SINCE JAN 1 14.80 12.58 2.22 20.14  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE JUN 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 65 27 38 4  
SINCE JUN 1 228 182 46 123  
SINCE JUL 1 115 85 30 45  
 
COOLING  
YESTERDAY 1 1 0 3  
MONTH TO DATE 1 17 -16 40  
SINCE JUN 1 50 66 -16 63  
SINCE JAN 1 61 86 -25 68    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 11.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 3:00 AM  
LOWEST 71 12:00 PM  
AVERAGE 86  
   
......................................................
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 85 1978  
MINIMUM TEMPERATURE (F) 57 48 1957  
 
SUNRISE AND SUNSET  
AUGUST 18 2024........SUNRISE 6:28 AM PDT SUNSET 7:57 PM PDT  
AUGUST 19 2024........SUNRISE 6:29 AM PDT SUNSET 7:56 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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