730  
CDUS46 KMTR 240035  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
535 PM PDT THU JUL 23 2026  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR JULY 23 2026  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 83 MM 102 2006 78 5 72  
MINIMUM 55 MM 48 2000 55 0 56  
AVERAGE 69 67 2 64  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE T T  
SINCE OCT 1 17.03 16.08  
SINCE JAN 1 9.60 8.10  
 
DEGREE DAYS  
HEATING  
TODAY 0 1  
MONTH TO DATE 23 32  
SINCE JUN 1 44 96  
SINCE JUL 1 23 32  
 
COOLING  
TODAY 4 0  
MONTH TO DATE 58 9  
SINCE JUN 1 97 17  
SINCE JAN 1 114 34    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 10.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 5:00 AM  
LOWEST 41 3:00 PM  
AVERAGE 71  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 93 2006  
MINIMUM TEMPERATURE (F) 55 45 2002  
 
SUNRISE AND SUNSET  
JULY 23 2026..........SUNRISE 6:04 AM PDT SUNSET 8:26 PM PDT  
JULY 24 2026..........SUNRISE 6:05 AM PDT SUNSET 8:26 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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