234  
CDUS46 KMTR 190839  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
139 AM PDT THU JUN 19 2025  
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JUNE 18 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 68 3:16 PM 97 2017 72 -4 72  
MINIMUM 52 5:36 AM 44 1952 54 -2 53  
AVERAGE 60 63 -3 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.14 1974 0.01 -0.01 0.00  
MONTH TO DATE 0.00 0.11 -0.11 0.00  
SINCE OCT 1 16.11 19.50 -3.39 20.13  
SINCE JAN 1 7.55 12.53 -4.98 14.80  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE JUN 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 5 3 2 2  
MONTH TO DATE 85 65 20 60  
SINCE JUN 1 85 65 20 60  
SINCE JUL 1 2335 2444 -109 1823  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 15 -15 6  
SINCE JUN 1 0 15 -15 6  
SINCE JAN 1 6 35 -29 17    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 18 RESULTANT WIND DIRECTION NW (300)  
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 18.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 4:00 AM  
LOWEST 55 1:00 PM  
AVERAGE 74  
   
......................................................
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 92 1962  
MINIMUM TEMPERATURE (F) 54 45 1955  
 
SUNRISE AND SUNSET  
JUNE 19 2025..........SUNRISE 5:48 AM PDT SUNSET 8:34 PM PDT  
JUNE 20 2025..........SUNRISE 5:48 AM PDT SUNSET 8:34 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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