245  
CDUS46 KMTR 250921  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
221 AM PDT SAT MAY 25 2024  
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 24 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1927 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 59 4:38 PM 91 1982 69 -10 66  
MINIMUM 52 6:12 AM 45 1953 52 0 54  
AVERAGE 56 61 -5 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.14 1960 0.01 -0.01 0.00  
MONTH TO DATE 0.95 0.40 0.55 0.72  
SINCE OCT 1 20.13 19.31 0.82 31.38  
SINCE JAN 1 14.80 12.34 2.46 20.13  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE MAR 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 5 4 5  
MONTH TO DATE 111 139 -28 135  
SINCE MAR 1 600 669 -69 782  
SINCE JUL 1 1741 2348 -607 2490  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 10 0 10 3  
SINCE MAR 1 11 6 5 5  
SINCE JAN 1 11 6 5 5    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 17 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 16.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 11:00 PM  
LOWEST 64 4:00 PM  
AVERAGE 75  
   
......................................................
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 90 2020  
MINIMUM TEMPERATURE (F) 52 45 1955  
1965  
1967  
 
SUNRISE AND SUNSET  
MAY 25 2024...........SUNRISE 5:53 AM PDT SUNSET 8:21 PM PDT  
MAY 26 2024...........SUNRISE 5:52 AM PDT SUNSET 8:22 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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