858  
CDUS46 KMTR 160037  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
537 PM PDT WED MAY 15 2024  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR MAY 15 2024  
 
VALID TODAY AS OF 0500 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 70 2:43 PM 101 2008 73 -3 72  
MINIMUM 50 2:07 AM 34 1999 48 2 53  
AVERAGE 60 60 0 63  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE 0.69 0.70  
SINCE OCT 1 19.88 29.49  
SINCE JAN 1 13.84 21.07  
 
DEGREE DAYS  
HEATING  
TODAY 5 2  
MONTH TO DATE 92 110  
SINCE MAR 1 723 794  
SINCE JUL 1 2371 2824  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 5 5  
SINCE MAR 1 5 8  
SINCE JAN 1 5 8    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 8.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 4:00 AM  
LOWEST 68 2:00 PM  
AVERAGE 82  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 95 2009  
MINIMUM TEMPERATURE (F) 48 37 1999  
 
SUNRISE AND SUNSET  
MAY 15 2024...........SUNRISE 5:58 AM PDT SUNSET 8:14 PM PDT  
MAY 16 2024...........SUNRISE 5:57 AM PDT SUNSET 8:15 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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