228  
CDUS46 KMTR 230825  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1225 AM PST THU NOV 23 2017  
 
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR NOVEMBER 22 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1998 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 69 352 PM 74 2005 61 8 60  
MINIMUM 44 705 AM 26 2003 38 6 38  
AVERAGE 57 50 7 49  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.12  
MONTH TO DATE 2.27 0.47  
SINCE OCT 1 2.46 4.28  
SINCE JAN 1 30.64 18.95  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 16  
MONTH TO DATE 238 159  
SINCE SEP 1 420 333  
SINCE JUL 1 430 390  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE SEP 1 148 67  
SINCE JAN 1 530 186    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 4.3  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 600 AM  
LOWEST 68 100 PM  
AVERAGE 84  
   
......................................................
 
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 72 2007  
MINIMUM TEMPERATURE (F) 38 23 2003  
 
 
SUNRISE AND SUNSET  
NOVEMBER 23 2017......SUNRISE 659 AM PST SUNSET 452 PM PST  
NOVEMBER 24 2017......SUNRISE 700 AM PST SUNSET 451 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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