073  
CDUS46 KMTR 170831  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
131 AM PDT FRI MAY 17 2024  
   
...............................  
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 16 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 70 1:33 PM 93 1956 68 2 72  
MINIMUM 54 3:04 AM 44 1955 52 2 54  
1984  
AVERAGE 62 60 2 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.29 2019 0.02 -0.02 0.00  
MONTH TO DATE 0.95 0.29 0.66 0.72  
SINCE OCT 1 20.13 19.20 0.93 31.38  
SINCE JAN 1 14.80 12.23 2.57 20.13  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE MAR 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 6 -3 2  
MONTH TO DATE 79 99 -20 96  
SINCE MAR 1 568 629 -61 743  
SINCE JUL 1 1709 2308 -599 2451  
 
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 5 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 8.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 6:00 AM  
LOWEST 57 2:00 PM  
AVERAGE 71  
   
......................................................  
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 93 1997  
2009  
MINIMUM TEMPERATURE (F) 52 45 1966  
 
SUNRISE AND SUNSET  
MAY 17 2024...........SUNRISE 5:58 AM PDT SUNSET 8:14 PM PDT  
MAY 18 2024...........SUNRISE 5:57 AM PDT SUNSET 8:15 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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