453  
CDUS46 KMTR 180840  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
140 AM PDT TUE MAR 18 2025  
   
...............................  
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MARCH 17 2025  
 
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)  
YESTERDAY  
MAXIMUM 58 11:48 AM 82 2004 64 -6 65  
MINIMUM 49 11:59 PM 36 1966 48 1 50  
AVERAGE 54 56 -2 58  
 
PRECIPITATION (IN)  
YESTERDAY 0.13 0.68 1991 0.08 0.05 0.00  
MONTH TO DATE 1.47 1.68 -0.21 2.07  
SINCE OCT 1 15.39 16.50 -1.11 17.04  
SINCE JAN 1 6.83 9.53 -2.70 11.71  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE MAR 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 11 10 1 7  
MONTH TO DATE 197 170 27 156  
SINCE MAR 1 197 170 27 156  
SINCE JUL 1 1730 1849 -119 1297  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 1  
SINCE MAR 1 0 0 0 1  
SINCE JAN 1 0 0 0 1    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 36 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 47 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 16.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 12:00 AM  
LOWEST 66 3:00 PM  
AVERAGE 80  
   
......................................................  
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 77 2004  
MINIMUM TEMPERATURE (F) 48 37 1973  
 
SUNRISE AND SUNSET  
MARCH 18 2025.........SUNRISE 7:15 AM PDT SUNSET 7:20 PM PDT  
MARCH 19 2025.........SUNRISE 7:14 AM PDT SUNSET 7:21 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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