596  
CDUS46 KMTR 260027  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
527 PM PDT SUN AUG 25 2019  
 
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR AUGUST 25 2019
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1998 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 84 241 PM 98 1999 81 3 73  
MINIMUM 55 555 AM 47 2000 52 3 50  
AVERAGE 70 66 4 62  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE 0.00 0.00  
SINCE OCT 1 25.85 15.80  
SINCE JAN 1 22.65 12.77  
 
DEGREE DAYS  
HEATING  
TODAY 0 3  
MONTH TO DATE 6 16  
SINCE JUN 1 54 91  
SINCE JUL 1 15 33  
 
COOLING  
TODAY 5 0  
MONTH TO DATE 101 41  
SINCE JUN 1 228 147  
SINCE JAN 1 234 152    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 6.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 600 AM  
LOWEST 47 200 PM  
AVERAGE 74  
   
......................................................
 
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 98 2017  
MINIMUM TEMPERATURE (F) 52 45 2005  
 
 
SUNRISE AND SUNSET  
AUGUST 25 2019........SUNRISE 633 AM PDT SUNSET 749 PM PDT  
AUGUST 26 2019........SUNRISE 633 AM PDT SUNSET 748 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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