790  
CDUS46 KMTR 250829  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
129 AM PDT WED SEP 25 2024  
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 24 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 85 11:06 AM 96 2019 80 5 74  
MINIMUM 53 6:11 AM 40 2005 50 3 48  
2017  
AVERAGE 69 65 4 61  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00  
MONTH TO DATE T 0.01  
SINCE OCT 1 19.88 29.52  
SINCE JAN 1 13.84 21.10  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 4  
MONTH TO DATE 20 18  
SINCE SEP 1 20 18  
SINCE JUL 1 33 26  
 
COOLING  
YESTERDAY 4 0  
MONTH TO DATE 46 46  
SINCE SEP 1 46 46  
SINCE JAN 1 347 319    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 8.0  
 
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 10:00 PM  
LOWEST 40 11:00 AM  
AVERAGE 67  
   
......................................................
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 99 2016  
MINIMUM TEMPERATURE (F) 50 37 2005  
 
SUNRISE AND SUNSET  
SEPTEMBER 25 2024.....SUNRISE 7:00 AM PDT SUNSET 7:00 PM PDT  
SEPTEMBER 26 2024.....SUNRISE 7:01 AM PDT SUNSET 6:59 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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