576  
CDUS46 KMTR 260830  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
130 AM PDT THU SEP 26 2024  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 25 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 75 1:11 PM 99 2016 80 -5 77  
MINIMUM 56 11:51 PM 37 2005 50 6 50  
AVERAGE 66 65 1 64  
 
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 1  
MONTH TO DATE 20 19  
SINCE SEP 1 20 19  
SINCE JUL 1 33 27  
 
COOLING  
YESTERDAY 1 0  
MONTH TO DATE 47 46  
SINCE SEP 1 47 46  
SINCE JAN 1 348 319    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 14.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 3:00 AM  
LOWEST 52 1:00 PM  
AVERAGE 73  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 99 2009  
2016  
MINIMUM TEMPERATURE (F) 50 43 2013  
2018  
 
SUNRISE AND SUNSET  
SEPTEMBER 26 2024.....SUNRISE 7:01 AM PDT SUNSET 6:59 PM PDT  
SEPTEMBER 27 2024.....SUNRISE 7:02 AM PDT SUNSET 6:57 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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