577  
CDUS46 KMTR 110832  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
132 AM PDT FRI APR 11 2025  
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR APRIL 10 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 67 2:38 PM 91 1988 65 2 72  
MINIMUM 50 6:11 AM 41 1946 49 1 49  
1949  
AVERAGE 59 57 2 61  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.54 1982 0.05 -0.05 0.00  
MONTH TO DATE 0.33 0.63 -0.30 0.50  
SINCE OCT 1 15.96 18.18 -2.22 18.91  
SINCE JAN 1 7.40 11.21 -3.81 13.58  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE MAR 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 8 -2 4  
MONTH TO DATE 79 83 -4 90  
SINCE MAR 1 395 379 16 367  
SINCE JUL 1 1928 2058 -130 1508  
 
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 15 RESULTANT WIND DIRECTION W (290)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 15.4  
 
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 96 4:00 AM  
LOWEST 52 2:00 PM  
AVERAGE 74  
   
......................................................
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 84 1988  
MINIMUM TEMPERATURE (F) 49 38 1953  
1967  
 
SUNRISE AND SUNSET  
APRIL 11 2025.........SUNRISE 6:40 AM PDT SUNSET 7:42 PM PDT  
APRIL 12 2025.........SUNRISE 6:38 AM PDT SUNSET 7:43 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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