556  
CDUS46 KMTR 160045  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
445 PM PST SUN DEC 15 2024  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 15 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 MM MM 66 2023 57 MM 66  
MINIMUM MM MM 26 2005 38 MM 39  
AVERAGE MM 47 MM 53  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE 1.13 0.65  
SINCE OCT 1 5.39 2.36  
SINCE JAN 1 19.23 23.57  
 
DEGREE DAYS  
HEATING  
TODAY MM 12  
MONTH TO DATE 177 223  
SINCE DEC 1 177 223  
SINCE JUL 1 717 629  
 
COOLING  
TODAY MM 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 444 389    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED MM RESULTANT WIND DIRECTION MM  
HIGHEST WIND SPEED MM HIGHEST WIND DIRECTION MM  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED MM  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER MM  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 70 2023  
MINIMUM TEMPERATURE (F) 37 28 2006  
2015  
 
SUNRISE AND SUNSET  
DECEMBER 15 2024......SUNRISE 7:19 AM PST SUNSET 4:50 PM PST  
DECEMBER 16 2024......SUNRISE 7:20 AM PST SUNSET 4:51 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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