200  
CDUS46 KMTR 240833  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
133 AM PDT THU AUG 24 2023  
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR AUGUST 23 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 95 4:14 PM 96 2010 81 14 87  
MINIMUM 59 4:10 AM 45 2005 54 5 60  
AVERAGE 77 67 10 74  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00  
MONTH TO DATE 0.00 0.01  
SINCE OCT 1 29.51 17.99  
SINCE JAN 1 21.09 2.85  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0  
MONTH TO DATE 1 0  
SINCE JUN 1 58 33  
SINCE JUL 1 8 15  
 
COOLING  
YESTERDAY 12 9  
MONTH TO DATE 131 124  
SINCE JUN 1 233 262  
SINCE JAN 1 242 295    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 4.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 4:00 AM  
LOWEST 30 4:00 PM  
AVERAGE 60  
   
......................................................
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 104 2010  
MINIMUM TEMPERATURE (F) 54 47 2005  
 
SUNRISE AND SUNSET  
AUGUST 24 2023........SUNRISE 6:32 AM PDT SUNSET 7:51 PM PDT  
AUGUST 25 2023........SUNRISE 6:33 AM PDT SUNSET 7:49 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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