275  
CDUS46 KMTR 280839  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
139 AM PDT SUN JUL 28 2024  
   
...............................  
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JULY 27 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 60 3:07 PM 86 1967 73 -13 69  
MINIMUM 55 11:59 PM 48 1951 56 -1 57  
AVERAGE 58 64 -6 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 1983 0.00 0.00 0.00  
1994  
2014  
MONTH TO DATE 0.00 0.00 0.00 T  
SINCE OCT 1 20.13 19.53 0.60 31.39  
SINCE JAN 1 14.80 12.56 2.24 20.14  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE JUN 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 2 5 2  
MONTH TO DATE 39 54 -15 38  
SINCE JUN 1 152 151 1 116  
SINCE JUL 1 39 54 -15 38  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 43 27 16 22  
SINCE JUN 1 49 50 -1 23  
SINCE JAN 1 60 70 -10 28    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 11.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 4:00 AM  
LOWEST 77 1:00 PM  
AVERAGE 84  
   
......................................................  
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 88 1954  
MINIMUM TEMPERATURE (F) 56 48 1953  
 
SUNRISE AND SUNSET  
JULY 28 2024..........SUNRISE 6:11 AM PDT SUNSET 8:21 PM PDT  
JULY 29 2024..........SUNRISE 6:11 AM PDT SUNSET 8:20 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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