798  
CDUS46 KMTR 050029  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
529 PM PDT SUN AUG 04 2024  
   
...............................  
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR AUGUST 4 2024  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 74 3:23 PM 95 1998 79 -5 78  
MINIMUM 59 7:19 AM 46 2007 55 4 59  
AVERAGE 67 67 0 69  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE 0.00 0.00  
SINCE OCT 1 19.88 29.51  
SINCE JAN 1 13.84 21.09  
 
DEGREE DAYS  
HEATING  
TODAY 0 0  
MONTH TO DATE 0 1  
SINCE JUN 1 42 58  
SINCE JUL 1 5 8  
 
COOLING  
TODAY 2 4  
MONTH TO DATE 15 5  
SINCE JUN 1 229 107  
SINCE JAN 1 239 116    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 9.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 2:00 AM  
LOWEST 61 1:00 PM  
AVERAGE 77  
   
......................................................  
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 86 2005  
MINIMUM TEMPERATURE (F) 55 46 2002  
 
SUNRISE AND SUNSET  
AUGUST 4 2024........SUNRISE 6:15 AM PDT SUNSET 8:15 PM PDT  
AUGUST 5 2024........SUNRISE 6:16 AM PDT SUNSET 8:14 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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