818  
CDUS46 KMTR 220833  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1233 AM PST SAT NOV 22 2025  
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR NOVEMBER 21 2025
 
 
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)  
YESTERDAY  
MAXIMUM 63 4:06 PM 73 2005 63 0 62  
MINIMUM 39 5:49 AM 27 2003 39 0 54  
AVERAGE 51 51 0 58  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.48  
MONTH TO DATE 2.15 2.31  
SINCE OCT 1 3.46 2.32  
SINCE JAN 1 11.78 16.16  
 
DEGREE DAYS  
HEATING  
YESTERDAY 14 7  
MONTH TO DATE 141 258  
SINCE SEP 1 272 399  
SINCE JUL 1 317 412  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE SEP 1 100 143  
SINCE JAN 1 211 444    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 4.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 12:00 AM  
LOWEST 58 1:00 PM  
AVERAGE 79  
   
......................................................
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 63 74 2005  
MINIMUM TEMPERATURE (F) 39 26 2003  
 
SUNRISE AND SUNSET  
NOVEMBER 22 2025......SUNRISE 6:58 AM PST SUNSET 4:52 PM PST  
NOVEMBER 23 2025......SUNRISE 6:59 AM PST SUNSET 4:52 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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