665  
CDUS46 KMTR 150842  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
142 AM PDT MON OCT 15 2018  
 
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR OCTOBER 14 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1998 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 81 428 PM 91 2010 75 6 82  
MINIMUM 43 133 AM 37 2013 43 0 41  
AVERAGE 62 59 3 62  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00  
MONTH TO DATE 0.00 0.00  
SINCE OCT 1 0.00 0.00  
SINCE JAN 1 12.77 28.18  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 3  
MONTH TO DATE 31 59  
SINCE SEP 1 101 96  
SINCE JUL 1 142 106  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 28 1  
SINCE SEP 1 30 133  
SINCE JAN 1 182 515    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION N (340)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 9.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 600 AM  
LOWEST 10 500 PM  
AVERAGE 55  
   
......................................................
 
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 88 2001  
MINIMUM TEMPERATURE (F) 43 37 2013  
 
 
SUNRISE AND SUNSET  
OCTOBER 15 2018.......SUNRISE 718 AM PDT SUNSET 631 PM PDT  
OCTOBER 16 2018.......SUNRISE 719 AM PDT SUNSET 630 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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