AFOS product CLIAPC
Dates interpreted at 00:00 UTC
Download date range (UTC midnight)
Bulk Download Bulk Download
748 
CDUS46 KMTR 220832
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
132 AM PDT TUE MAY 22 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MAY 21 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         MM        MM  96    2000  73     MM       87        
  MINIMUM         MM        MM  39    2008  46     MM       49        
  AVERAGE         MM                        60     MM       68      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    0.00                                       T      
  SINCE OCT 1     15.79                                     36.85    
  SINCE JAN 1     12.76                                     27.90    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       MM                                         0       
  MONTH TO DATE   99                                        77       
  SINCE MAR 1    801                                       556       
  SINCE JUL 1   2821                                      2439       
                                                                     
 COOLING                                                             
  YESTERDAY       MM                                         3       
  MONTH TO DATE    2                                        29       
  SINCE MAR 1      2                                        31       
  SINCE JAN 1      2                                        31       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION   S (200)      
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     S (180)      
  AVERAGE WIND SPEED    10.3                                         

                                                                     
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                                       
  HAZE                                                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    86           900 PM                                     
 LOWEST     53          1200 PM                                     
 AVERAGE    70                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   74        92      2000                    
 MINIMUM TEMPERATURE (F)   46        35      2013                    
                                             2010                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 22 2018...........SUNRISE   553 AM PDT   SUNSET   819 PM PDT   
MAY 23 2018...........SUNRISE   552 AM PDT   SUNSET   820 PM PDT   

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




$$