269  
CDUS46 KMTR 100837  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
137 AM PDT THU APR 10 2025  
   
...............................  
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR APRIL 9 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 73 1:14 PM 90 1989 65 8 71  
MINIMUM 50 6:12 AM 38 1953 49 1 48  
AVERAGE 62 57 5 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.96 1965 0.05 -0.05 0.00  
MONTH TO DATE 0.33 0.58 -0.25 0.50  
SINCE OCT 1 15.96 18.13 -2.17 18.91  
SINCE JAN 1 7.40 11.16 -3.76 13.58  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE MAR 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 8 -5 5  
MONTH TO DATE 73 75 -2 86  
SINCE MAR 1 389 371 18 363  
SINCE JUL 1 1922 2050 -128 1504  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 3 1 2 1  
SINCE JAN 1 3 1 2 1    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION W (290)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 9.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 11:00 PM  
LOWEST 49 4:00 PM  
AVERAGE 66  
   
......................................................  
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 91 1988  
MINIMUM TEMPERATURE (F) 49 41 1946  
1949  
 
SUNRISE AND SUNSET  
APRIL 10 2025.........SUNRISE 6:41 AM PDT SUNSET 7:41 PM PDT  
APRIL 11 2025.........SUNRISE 6:40 AM PDT SUNSET 7:42 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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