340  
CDUS46 KMTR 190833  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1233 AM PST SUN NOV 19 2023  
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR NOVEMBER 18 2023
 
 
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)  
YESTERDAY  
MAXIMUM 65 3:01 PM 74 1949 63 2 65  
MINIMUM 56 11:59 PM 36 1964 48 8 45  
AVERAGE 61 56 5 55  
 
PRECIPITATION (IN)  
YESTERDAY 0.48 2.26 1982 0.08 0.40 0.00  
MONTH TO DATE 1.11 0.99 0.12 1.58  
SINCE OCT 1 1.11 1.78 -0.67 1.59  
SINCE JAN 1 21.31 14.45 6.86 3.76  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE SEP 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 4 9 -5 10  
MONTH TO DATE 45 131 -86 191  
SINCE SEP 1 82 277 -195 330  
SINCE JUL 1 129 379 -250 391  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 7 0 7 0  
SINCE SEP 1 141 89 52 127  
SINCE JAN 1 280 199 81 280    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 13.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 9:00 AM  
LOWEST 67 11:00 PM  
AVERAGE 79  
   
......................................................
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 63 73 1989  
MINIMUM TEMPERATURE (F) 48 35 1964  
1994  
 
SUNRISE AND SUNSET  
NOVEMBER 19 2023......SUNRISE 6:54 AM PST SUNSET 4:56 PM PST  
NOVEMBER 20 2023......SUNRISE 6:55 AM PST SUNSET 4:55 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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