095  
CDUS46 KMTR 140039  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
539 PM PDT TUE MAY 13 2025  
   
...............................  
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 13 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 66 2:12 PM 92 2014 68 -2 65  
MINIMUM 52 5:56 AM 45 1956 51 1 52  
1968  
AVERAGE 59 60 -1 59  
 
PRECIPITATION (IN)  
TODAY T 0.32 1995 0.02 -0.02 0.00  
MONTH TO DATE 0.11 0.24 -0.13 0.95  
SINCE OCT 1 16.11 19.15 -3.04 20.13  
SINCE JAN 1 7.55 12.18 -4.63 14.80  
 
SNOWFALL (IN)  
TODAY MM 0.0  
MONTH TO DATE T  
SINCE MAR 1 T  
SINCE JUL 1 T  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 6 6 0 6  
MONTH TO DATE 70 81 -11 67  
SINCE MAR 1 624 611 13 556  
SINCE JUL 1 2157 2290 -133 1697  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 2 0 2 10  
SINCE MAR 1 5 6 -1 11  
SINCE JAN 1 5 6 -1 11    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION W (290)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 12.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 2:00 AM  
LOWEST 48 2:00 PM  
AVERAGE 66  
   
......................................................  
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 91 2014  
MINIMUM TEMPERATURE (F) 52 41 1968  
 
SUNRISE AND SUNSET  
MAY 13 2025...........SUNRISE 6:01 AM PDT SUNSET 8:11 PM PDT  
MAY 14 2025...........SUNRISE 6:01 AM PDT SUNSET 8:12 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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