517  
CDUS46 KMTR 170826  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1226 AM PST MON NOV 17 2025  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR NOVEMBER 16 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 1:29 PM 77 2008 65 -2 60  
MINIMUM 55 7:46 AM 31 2009 40 15 37  
2022  
AVERAGE 59 52 7 49  
 
PRECIPITATION (IN)  
YESTERDAY 0.04 0.00  
MONTH TO DATE 1.06 0.72  
SINCE OCT 1 2.37 0.73  
SINCE JAN 1 10.69 14.57  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 16  
MONTH TO DATE 77 184  
SINCE SEP 1 208 325  
SINCE JUL 1 253 338  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE SEP 1 100 143  
SINCE JAN 1 211 444    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 10.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 6:00 AM  
LOWEST 67 1:00 PM  
AVERAGE 84  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 78 2008  
MINIMUM TEMPERATURE (F) 40 25 2000  
 
SUNRISE AND SUNSET  
NOVEMBER 17 2025......SUNRISE 6:53 AM PST SUNSET 4:55 PM PST  
NOVEMBER 18 2025......SUNRISE 6:54 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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