181  
CDUS46 KMTR 110828  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
128 AM PDT TUE MAR 11 2025  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR MARCH 10 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 66 4:02 PM 85 2004 64 2 60  
MINIMUM 37 6:43 AM 27 2009 42 -5 41  
AVERAGE 52 53 -1 51  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.15  
MONTH TO DATE T 1.03  
SINCE OCT 1 13.95 16.70  
SINCE JAN 1 5.97 10.66  
 
DEGREE DAYS  
HEATING  
YESTERDAY 13 14  
MONTH TO DATE 144 144  
SINCE MAR 1 144 144  
SINCE JUL 1 1999 1792  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE MAR 1 0 0  
SINCE JAN 1 0 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 2.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 4:00 AM  
LOWEST 48 2:00 PM  
AVERAGE 71  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 82 2005  
MINIMUM TEMPERATURE (F) 42 31 2009  
 
SUNRISE AND SUNSET  
MARCH 11 2025.........SUNRISE 7:26 AM PDT SUNSET 7:13 PM PDT  
MARCH 12 2025.........SUNRISE 7:24 AM PDT SUNSET 7:14 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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