555  
CDUS46 KMTR 100828  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
128 AM PDT FRI MAY 10 2024  
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR MAY 9 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 4:26 PM 86 2021 72 13 70  
MINIMUM 53 11:59 PM 33 2003 47 6 44  
AVERAGE 69 59 10 57  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00  
MONTH TO DATE 0.69 0.70  
SINCE OCT 1 19.88 29.49  
SINCE JAN 1 13.84 21.07  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 8  
MONTH TO DATE 65 86  
SINCE MAR 1 696 770  
SINCE JUL 1 2344 2800  
 
COOLING  
YESTERDAY 4 0  
MONTH TO DATE 4 0  
SINCE MAR 1 4 3  
SINCE JAN 1 4 3    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION N (10)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 11.4  
 
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 78 11:00 PM  
LOWEST 22 4:00 PM  
AVERAGE 50  
   
......................................................
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 94 2021  
MINIMUM TEMPERATURE (F) 47 32 2022  
 
SUNRISE AND SUNSET  
MAY 10 2024...........SUNRISE 6:02 AM PDT SUNSET 8:09 PM PDT  
MAY 11 2024...........SUNRISE 6:01 AM PDT SUNSET 8:10 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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