AFOS product CLIDCA
Dates interpreted at 00:00 UTC
Download date range (UTC midnight)
Bulk Download
682 
CDUS41 KLWX 160521
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  
1221 AM EST FRI DEC 16 2016


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 15 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         40   1225 AM  71    1971  47     -7       67       
  MINIMUM         18   1159 PM   6    1904  33    -15       47       
  AVERAGE         29                        40    -11       57      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.38 1901   0.10  -0.10      T      
  MONTH TO DATE    1.56                      1.59  -0.03     1.20    
  SINCE DEC 1      1.56                      1.59  -0.03     1.20    
  SINCE JAN 1     30.65                     38.28  -7.63    41.38    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           4.5  1905   0.1   -0.1              
  MONTH TO DATE    0.0                       1.0   -1.0              
  SINCE JUL 1      0.0                       1.5   -1.5              
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       36                        25     11        8       
  MONTH TO DATE  331                       349    -18      215       
  SINCE DEC 1    331                       349    -18      215       
  SINCE JUL 1    818                      1044   -226      750       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1   1994                      1549    445     1998       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    33   HIGHEST WIND DIRECTION    NW (300)      
  HIGHEST GUST SPEED    51   HIGHEST GUST DIRECTION    NW (300)      
  AVERAGE WIND SPEED    17.1                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.3                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    52           300 AM                                     
 LOWEST     23          1200 PM                                     
 AVERAGE    38                                                       

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

                                                                     
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   46        74      1971                    
 MINIMUM TEMPERATURE (F)   32        10      1917                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 16 2016......SUNRISE   720 AM EST   SUNSET   448 PM EST   
DECEMBER 17 2016......SUNRISE   721 AM EST   SUNSET   448 PM EST   

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




$$