AFOS product CLIAPC
Dates interpreted at 00:00 UTC
Download date range (UTC midnight)
Bulk Download
769 
CDUS46 KMTR 200838
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
137 AM PDT WED MAY 20 2015


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MAY 19 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         67    306 PM  85    2013  73     -6       70       
  MINIMUM         49   1122 PM  40    2011  46      3       50       
                                      2003                          
  AVERAGE         58                        60     -2       60      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    T                                          T      
  SINCE OCT 1     16.26                                      9.63    
  SINCE JAN 1      3.87                                      8.27    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        7                                         5       
  MONTH TO DATE  154                                        89       
  SINCE MAR 1    743                                       643       
  SINCE JUL 1   2471                                      2850       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         9       
  SINCE MAR 1      1                                        10       
  SINCE JAN 1      1                                        10       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION  SW (240)      
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     S (190)      
  AVERAGE WIND SPEED     9.0                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93          1000 PM                                     
 LOWEST     58           300 PM                                     
 AVERAGE    76                                                       

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

                                                                     
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   73        91      2013                    
 MINIMUM TEMPERATURE (F)   46        39      2010                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 20 2015...........SUNRISE   554 AM PDT   SUNSET   817 PM PDT   
MAY 21 2015...........SUNRISE   554 AM PDT   SUNSET   818 PM PDT   

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




$$