935  
CDUS46 KMTR 230027  
CLIAPC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
526 PM PDT SUN JUL 22 2018  
 
   
...............................
 
 
   
..THE NAPA AIRPORT CLIMATE SUMMARY FOR JULY 22 2018
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 80 318 PM 106 2006 78 2 89  
MINIMUM 59 531 AM 44 2016 53 6 56  
AVERAGE 70 65 5 73  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE 0.00 T  
SINCE OCT 1 15.80 37.11  
SINCE JAN 1 12.77 28.16  
 
DEGREE DAYS  
HEATING  
TODAY 0 0  
MONTH TO DATE 9 2  
SINCE JUN 1 67 19  
SINCE JUL 1 9 2  
 
COOLING  
TODAY 5 8  
MONTH TO DATE 58 92  
SINCE JUN 1 91 215  
SINCE JAN 1 96 249    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 13.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 500 AM  
LOWEST 51 200 PM  
AVERAGE 69  
   
......................................................
 
 
 
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 102 2006  
MINIMUM TEMPERATURE (F) 53 48 2000  
 
 
SUNRISE AND SUNSET  
JULY 22 2018..........SUNRISE 603 AM PDT SUNSET 827 PM PDT  
JULY 23 2018..........SUNRISE 604 AM PDT SUNSET 827 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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