395  
CDUS46 KMTR 050029  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
529 PM PDT TUE JUL 04 2023  
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR JULY 4 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 74 1:53 PM 93 2007 79 -5 79  
MINIMUM 55 6:43 AM 45 1999 54 1 52  
AVERAGE 65 67 -2 66  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE 0.00 0.00  
SINCE OCT 1 29.51 17.98  
SINCE JAN 1 21.09 2.84  
 
DEGREE DAYS  
HEATING  
TODAY 0 0  
MONTH TO DATE 0 4  
SINCE JUN 1 50 22  
SINCE JUL 1 0 4  
 
COOLING  
TODAY 0 1  
MONTH TO DATE 17 1  
SINCE JUN 1 26 90  
SINCE JAN 1 35 123    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 12.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 12:00 AM  
LOWEST 53 1:00 PM  
AVERAGE 70  
   
......................................................
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 89 2007  
MINIMUM TEMPERATURE (F) 54 45 2018  
 
SUNRISE AND SUNSET  
JULY 4 2023..........SUNRISE 5:51 AM PDT SUNSET 8:36 PM PDT  
JULY 5 2023..........SUNRISE 5:52 AM PDT SUNSET 8:36 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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