058  
CDUS46 KMTR 040047  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
447 PM PST WED JAN 03 2024  
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR JANUARY 3 2024
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 59 3:00 PM 66 2014 56 3 51  
MINIMUM 43 7:04 AM 26 2009 38 5 46  
AVERAGE 51 47 4 49  
 
PRECIPITATION (IN)  
TODAY 0.05 0.01  
MONTH TO DATE 0.47 0.23  
SINCE OCT 1 6.51 8.65  
SINCE JAN 1 0.47 0.23  
 
DEGREE DAYS  
HEATING  
TODAY 14 16  
MONTH TO DATE 48 48  
SINCE DEC 1 459 598  
SINCE JUL 1 865 1198  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 0 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION W (290)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 3.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 8:00 AM  
LOWEST 60 3:00 PM  
AVERAGE 79  
   
......................................................
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 56 67 2012  
2014  
MINIMUM TEMPERATURE (F) 38 22 2009  
 
SUNRISE AND SUNSET  
JANUARY 3 2024.......SUNRISE 7:26 AM PST SUNSET 5:01 PM PST  
JANUARY 4 2024.......SUNRISE 7:26 AM PST SUNSET 5:02 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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