975  
CDUS46 KMTR 300041  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
441 PM PST MON DEC 29 2025  
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 29 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 55 2:47 PM 64 2013 56 -1 61  
2023  
MINIMUM 33 7:44 AM 25 2015 38 -5 42  
AVERAGE 44 47 -3 52  
 
PRECIPITATION (IN)  
TODAY 0.00 0.41  
MONTH TO DATE 3.43 3.72  
SINCE OCT 1 6.89 7.98  
SINCE JAN 1 15.21 21.82  
 
DEGREE DAYS  
HEATING  
TODAY 21 13  
MONTH TO DATE 463 347  
SINCE DEC 1 463 347  
SINCE JUL 1 938 887  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 211 444    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION E (100)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 6.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 7:00 AM  
LOWEST 59 11:00 AM  
AVERAGE 78  
   
......................................................
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 56 63 2013  
2017  
MINIMUM TEMPERATURE (F) 38 26 2015  
 
SUNRISE AND SUNSET  
DECEMBER 29 2025......SUNRISE 7:25 AM PST SUNSET 4:58 PM PST  
DECEMBER 30 2025......SUNRISE 7:25 AM PST SUNSET 4:58 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab CA Page Main Text Page