518  
CDUS46 KMTR 010826  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1226 AM PST SUN DEC 01 2024  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR NOVEMBER 30 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 58 2:40 PM 68 2021 60 -2 65  
MINIMUM 31 6:22 AM 22 2007 38 -7 38  
AVERAGE 45 49 -4 52  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00  
MONTH TO DATE 4.25 1.26  
SINCE OCT 1 4.26 1.71  
SINCE JAN 1 18.10 22.92  
 
DEGREE DAYS  
HEATING  
YESTERDAY 20 13  
MONTH TO DATE 386 277  
SINCE SEP 1 527 398  
SINCE JUL 1 540 406  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE SEP 1 143 116  
SINCE JAN 1 444 389    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 8.8  
 
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 92 5:00 AM  
LOWEST 62 1:00 PM  
AVERAGE 77  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 69 2011  
MINIMUM TEMPERATURE (F) 38 20 2007  
 
SUNRISE AND SUNSET  
DECEMBER 1 2024......SUNRISE 7:07 AM PST SUNSET 4:49 PM PST  
DECEMBER 2 2024......SUNRISE 7:08 AM PST SUNSET 4:49 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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