446

CDUS41 KLWX 210527

CLIDCA





CLIMATE REPORT

NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  

1226 AM EST SAT NOV 21 2009





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



...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR NOVEMBER 20 2009...



CLIMATE NORMAL PERIOD 1971 TO 2000

CLIMATE RECORD PERIOD 1871 TO 2009





WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     

                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     

                                                  NORMAL             

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

TEMPERATURE (F)                                                     

 YESTERDAY                                                           

  MAXIMUM         60    156 PM  79    1942  56      4       47       

  MINIMUM         46   1159 PM  20    1901  39      7       35       

  AVERAGE         53                        47      6       41      

                                                                     

PRECIPITATION (IN)                                                   

  YESTERDAY        0.01          1.83 1952   0.10  -0.09     0.00    

  MONTH TO DATE    3.03                      2.03   1.00     1.61    

  SINCE SEP 1     12.05                      9.04   3.01     9.15    

  SINCE JAN 1     38.71                     35.30   3.41    42.70    

                                                                     

SNOWFALL (IN)                                                        

  YESTERDAY        0.0                       T      0.0              

  MONTH TO DATE    0.0                       T      0.0              

  SINCE JUL 1      0.0                       T      0.0              

  SNOW DEPTH       0                                                 

                                                                     

DEGREE DAYS                                                          

 HEATING                                                             

  YESTERDAY       12                        17     -5       24       

  MONTH TO DATE  218                       285    -67      280       

  SINCE SEP 1    434                       509    -75      507       

  SINCE JUL 1    434                       516    -82      507       

                                                                     

 COOLING                                                             

  YESTERDAY        0                         0      0        0       

  MONTH TO DATE    0                         0      0        0       

  SINCE SEP 1    186                       228    -42      324       

  SINCE JAN 1   1433                      1527    -94     1713       

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





WIND (MPH)                                                           

  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION    NW (310)      

  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    NW (330)      

  AVERAGE WIND SPEED     9.3                                         



                                                                     

SKY COVER                                                            

  POSSIBLE SUNSHINE  MM                                              

  AVERAGE SKY COVER 0.4                                              



                                                                     

WEATHER CONDITIONS                                                  

 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        

  LIGHT RAIN                                                         

  FOG                                                                



                                                                     

RELATIVE HUMIDITY (PERCENT)                                          

 HIGHEST    89           300 AM                                     

 LOWEST     44           200 PM                                     

 AVERAGE    67                                                       



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



                                                                     

THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY

                         NORMAL    RECORD    YEAR                    

 MAXIMUM TEMPERATURE (F)   55        79      1900                    

 MINIMUM TEMPERATURE (F)   38        18      1872                    



                                                                     

SUNRISE AND SUNSET                                                   

NOVEMBER 21 2009......SUNRISE   657 AM EST   SUNSET   450 PM EST   

NOVEMBER 22 2009......SUNRISE   659 AM EST   SUNSET   450 PM EST   



                                                                    

-  INDICATES NEGATIVE NUMBERS.                                      

R  INDICATES RECORD WAS SET OR TIED.                                

MM INDICATES DATA IS MISSING.                                       

T  INDICATES TRACE AMOUNT.                                          









$$