913  
CDUS46 KMTR 190041  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
441 PM PST TUE NOV 18 2025  
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR NOVEMBER 18 2025
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 62 3:49 PM 78 2005 64 -2 60  
MINIMUM 47 8:27 AM 26 2000 40 7 35  
AVERAGE 55 52 3 48  
 
PRECIPITATION (IN)  
TODAY 0.01 0.00  
MONTH TO DATE 1.91 0.74  
SINCE OCT 1 3.22 0.75  
SINCE JAN 1 11.54 14.59  
 
DEGREE DAYS  
HEATING  
TODAY 10 17  
MONTH TO DATE 98 219  
SINCE SEP 1 229 360  
SINCE JUL 1 274 373  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE SEP 1 100 143  
SINCE JAN 1 211 444    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 5.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 4:00 AM  
LOWEST 62 2:00 PM  
AVERAGE 79  
   
......................................................
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 72 2005  
MINIMUM TEMPERATURE (F) 40 29 2009  
 
SUNRISE AND SUNSET  
NOVEMBER 18 2025......SUNRISE 6:54 AM PST SUNSET 4:54 PM PST  
NOVEMBER 19 2025......SUNRISE 6:55 AM PST SUNSET 4:54 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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