071  
CDUS46 KMTR 190029  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
529 PM PDT FRI JUL 18 2025  
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JULY 18 2025
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 67 11:37 AM 88 1968 73 -6 70  
MINIMUM 58 6:52 AM 50 1949 56 2 55  
1960  
1999  
AVERAGE 63 64 -1 63  
 
PRECIPITATION (IN)  
TODAY 0.00 0.01 2007 0.00 0.00 0.00  
MONTH TO DATE 0.00 0.00 0.00 0.00  
SINCE OCT 1 16.11 19.53 -3.42 20.13  
SINCE JAN 1 7.55 12.56 -5.01 14.80  
 
SNOWFALL (IN)  
TODAY MM 0.0  
MONTH TO DATE T  
SINCE JUN 1 T  
SINCE JUL 1 T  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 2 2 0 2  
MONTH TO DATE 48 36 12 19  
SINCE JUN 1 191 133 58 132  
SINCE JUL 1 48 36 12 19  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 0 18 -18 31  
SINCE JUN 1 1 41 -40 37  
SINCE JAN 1 7 61 -54 48    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION W (280)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 12.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 1:00 AM  
LOWEST 65 3:00 PM  
AVERAGE 76  
   
......................................................
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 90 1961  
MINIMUM TEMPERATURE (F) 56 49 1981  
 
SUNRISE AND SUNSET  
JULY 18 2025..........SUNRISE 6:03 AM PDT SUNSET 8:29 PM PDT  
JULY 19 2025..........SUNRISE 6:03 AM PDT SUNSET 8:28 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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