072  
CDUS46 KMTR 050033  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
433 PM PST SAT JAN 04 2025  
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR JANUARY 4 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 58 3:50 PM 67 2012 56 2 60  
2014  
MINIMUM 37 7:23 AM 22 2009 38 -1 37  
AVERAGE 48 47 1 49  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE 0.28 0.47  
SINCE OCT 1 8.26 6.51  
SINCE JAN 1 0.28 0.47  
 
DEGREE DAYS  
HEATING  
TODAY 17 16  
MONTH TO DATE 67 66  
SINCE DEC 1 452 477  
SINCE JUL 1 992 883  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 0 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION NW (310)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 2.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 5:00 AM  
LOWEST 74 3:00 PM  
AVERAGE 87  
   
......................................................
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 56 70 2014  
MINIMUM TEMPERATURE (F) 38 24 2014  
 
SUNRISE AND SUNSET  
JANUARY 4 2025.......SUNRISE 7:26 AM PST SUNSET 5:03 PM PST  
JANUARY 5 2025.......SUNRISE 7:26 AM PST SUNSET 5:04 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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