338  
CDUS46 KMTR 180827  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
127 AM PDT MON JUN 18 2018  
 
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JUNE 17 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1927 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 72 421 PM 95 1993 71 1 77  
MINIMUM 57 103 PM 44 1954 54 3 55  
AVERAGE 65 62 3 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00 MM 0.01 -0.01 0.00  
MONTH TO DATE 0.00 0.09 -0.09 0.05  
SINCE OCT 1 13.86 20.42 -6.56 30.92  
SINCE JAN 1 10.81 13.06 -2.25 21.97  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0  
MONTH TO DATE 0.0  
SINCE JUN 1 0.0  
SINCE JUL 1 0.0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 3 -3 0  
MONTH TO DATE 37 66 -29 56  
SINCE JUN 1 37 66 -29 56  
SINCE JUL 1 2031 2614 -583 2205  
 
COOLING  
YESTERDAY 0 1 -1 1  
MONTH TO DATE 11 14 -3 2  
SINCE JUN 1 11 14 -3 2  
SINCE JAN 1 22 33 -11 25    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 8.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 72 1200 AM  
LOWEST 49 200 PM  
AVERAGE 61  
   
......................................................
 
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 97 2017  
MINIMUM TEMPERATURE (F) 54 44 1952  
 
 
SUNRISE AND SUNSET  
JUNE 18 2018..........SUNRISE 548 AM PDT SUNSET 834 PM PDT  
JUNE 19 2018..........SUNRISE 548 AM PDT SUNSET 834 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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