519  
CDUS46 KMTR 140026  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
526 PM PDT THU APR 13 2023  
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR APRIL 13 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1927 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 62 12:33 PM 84 1947 65 -3 61  
1985  
MINIMUM 47 6:00 AM 39 1972 49 -2 45  
AVERAGE 55 57 -2 53  
 
PRECIPITATION (IN)  
TODAY 0.00 0.76 2012 0.05 -0.05 0.00  
MONTH TO DATE 0.06 0.78 -0.72 0.12  
SINCE OCT 1 30.62 18.33 12.29 17.27  
SINCE JAN 1 19.37 11.36 8.01 0.99  
 
SNOWFALL (IN)  
TODAY MM 0.0  
MONTH TO DATE MM  
SINCE MAR 1 MM  
SINCE JUL 1 MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 10 8 2 12  
MONTH TO DATE 131 107 24 93  
SINCE MAR 1 522 403 119 378  
SINCE JUL 1 2230 2082 148 1844  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 9  
SINCE MAR 1 0 1 -1 11  
SINCE JAN 1 0 1 -1 11    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION W (290)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 11.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 76 5:00 AM  
LOWEST 29 12:00 PM  
AVERAGE 53  
   
......................................................
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 87 1984  
MINIMUM TEMPERATURE (F) 49 39 1950  
 
SUNRISE AND SUNSET  
APRIL 13 2023.........SUNRISE 6:38 AM PDT SUNSET 7:43 PM PDT  
APRIL 14 2023.........SUNRISE 6:36 AM PDT SUNSET 7:44 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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