553  
CDUS46 KMTR 020835  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
135 AM PDT MON SEP 02 2024  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 1 2024  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 83 1:13 PM 106 2017 81 2 75  
MINIMUM 52 6:20 AM 45 1999 53 -1 60  
AVERAGE 68 67 1 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T  
MONTH TO DATE 0.00 T  
SINCE OCT 1 19.88 29.51  
SINCE JAN 1 13.84 21.09  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE SEP 1 0 0  
SINCE JUL 1 13 8  
 
COOLING  
YESTERDAY 3 3  
MONTH TO DATE 3 3  
SINCE SEP 1 3 3  
SINCE JAN 1 304 276    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 11.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 7:00 AM  
LOWEST 34 1:00 PM  
AVERAGE 64  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 107 2017  
MINIMUM TEMPERATURE (F) 53 46 2008  
 
SUNRISE AND SUNSET  
SEPTEMBER 2 2024.....SUNRISE 6:40 AM PDT SUNSET 7:36 PM PDT  
SEPTEMBER 3 2024.....SUNRISE 6:41 AM PDT SUNSET 7:35 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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