AFOS product CLIAPC
Dates interpreted at 00:00 UTC
Download date range (UTC midnight)
Bulk Download Bulk Download
484 
CDUS46 KMTR 160943
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
242 AM PDT SUN SEP 16 2018


................................... 

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR SEPTEMBER 15 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         77    123 PM  91    2004  80     -3       78       
  MINIMUM         50   1159 PM  39    2006  50      0       46       
  AVERAGE         64                        65     -1       62      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    T                                         0.02    
  SINCE OCT 1     15.80                                     37.13    
  SINCE JAN 1     12.77                                     28.18    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        1                                         3       
  MONTH TO DATE   25                                         3       
  SINCE SEP 1     25                                         3       
  SINCE JUL 1     66                                        13       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                       115       
  SINCE SEP 1      0                                       115       
  SINCE JAN 1    152                                       497       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  11   RESULTANT WIND DIRECTION  SW (240)      
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     W (260)      
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     W (260)      
  AVERAGE WIND SPEED    10.4                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93          1100 PM                                     
 LOWEST     31           100 PM                                     
 AVERAGE    62                                                       

..........................................................

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   80        85      2004                    
 MINIMUM TEMPERATURE (F)   49        38      2006                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 16 2018.....SUNRISE   652 AM PDT   SUNSET   715 PM PDT   
SEPTEMBER 17 2018.....SUNRISE   653 AM PDT   SUNSET   714 PM PDT   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




$$