CDUS46 KMTR 190031
CLIAPC

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
531 PM PDT MON MAY 18 2026

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MAY 18 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 TODAY                                                               
  MAXIMUM         84   4:59 PM  91    2022  73     11       79        
  MINIMUM         52   2:01 AM  39    2013  48      4       43        
  AVERAGE         68                        61      7       61     

PRECIPITATION (IN)                                                    
  TODAY            0.00                                      0.00     
  MONTH TO DATE    0.37                                      0.20     
  SINCE OCT 1     16.76                                     16.08     
  SINCE JAN 1      9.33                                      8.10     

DEGREE DAYS                                                           
 HEATING                                                              
  TODAY            0                                         4        
  MONTH TO DATE   72                                        92        
  SINCE MAR 1    479                                       758        
  SINCE JUL 1   2277                                      2613        

 COOLING                                                              
  TODAY            3                                         0        
  MONTH TO DATE    5                                         6        
  SINCE MAR 1     13                                         8        
  SINCE JAN 1     13                                         8        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED  16   RESULTANT WIND DIRECTION   N (10)        
  HIGHEST WIND SPEED    32   HIGHEST WIND DIRECTION     N (10)        
  HIGHEST GUST SPEED    43   HIGHEST GUST DIRECTION     N (10)        
  AVERAGE WIND SPEED    17.0                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.0                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED TODAY.                             
  LIGHT RAIN                                                          


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    46           1:00 AM                                      
 LOWEST     13           3:00 PM                                      
 AVERAGE    30                                                        

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   74        88      2017                      
                                             2022                     
 MINIMUM TEMPERATURE (F)   48        40      2003                      
                                             2011                     


SUNRISE AND SUNSET                                                    
MAY 18 2026...........SUNRISE   5:56 AM PDT   SUNSET   8:16 PM PDT     
MAY 19 2026...........SUNRISE5:55 AM PDT   SUNSET   8:17 PM PDT     


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




$$