667  
CDUS46 KMTR 130842  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
142 AM PDT SAT APR 13 2024  
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR APRIL 12 2024
 
 
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)  
YESTERDAY  
MAXIMUM 63 11:21 AM 87 2008 68 -5 64  
MINIMUM 46 5:53 AM 30 2022 43 3 41  
AVERAGE 55 55 0 53  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00  
MONTH TO DATE 0.62 0.05  
SINCE OCT 1 18.85 28.70  
SINCE JAN 1 12.81 20.28  
 
DEGREE DAYS  
HEATING  
YESTERDAY 10 12  
MONTH TO DATE 130 131  
SINCE MAR 1 501 559  
SINCE JUL 1 2149 2589  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE MAR 1 0 0  
SINCE JAN 1 0 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 13.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 2:00 AM  
LOWEST 64 2:00 PM  
AVERAGE 77  
   
......................................................
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 85 2008  
MINIMUM TEMPERATURE (F) 43 35 2007  
 
SUNRISE AND SUNSET  
APRIL 13 2024.........SUNRISE 6:35 AM PDT SUNSET 7:44 PM PDT  
APRIL 14 2024.........SUNRISE 6:34 AM PDT SUNSET 7:45 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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