349

CDUS41 KLWX 180525

CLIDCA

CLIMATE REPORT

NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC                  

124 AM EDT THU MAR 18 2010

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



...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR MARCH 17 2010...



CLIMATE NORMAL PERIOD 1971 TO 2000

CLIMATE RECORD PERIOD 1871 TO 2010





WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     

                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     

                                                  NORMAL             

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

TEMPERATURE (F)                                                     

 YESTERDAY                                                           

  MAXIMUM         68    403 PM  88    1945  56     12       53       

  MINIMUM         41    549 AM  13    1900  38      3       41       

  AVERAGE         55                        47      8       47      

                                                                     

PRECIPITATION (IN)                                                   

  YESTERDAY        0.00          1.34 1990   0.12  -0.12     0.06    

  MONTH TO DATE    1.63                      2.00  -0.37     0.83    

  SINCE MAR 1      1.63                      2.00  -0.37     0.83    

  SINCE JAN 1      5.91                      7.84  -1.93     3.86    

                                                                     

SNOWFALL (IN)                                                        

  YESTERDAY        0.0           1.9  1965   T      0.0              

  MONTH TO DATE    T                         1.6   -1.6              

  SINCE JUL 1     56.1                      15.2   40.9              

  SNOW DEPTH       0                                                 

                                                                     

DEGREE DAYS                                                          

 HEATING                                                             

  YESTERDAY       10                        18     -8       18       

  MONTH TO DATE  277                       346    -69      366       

  SINCE MAR 1    277                       346    -69      366       

  SINCE JUL 1   3474                      3488    -14     3621       

                                                                     

 COOLING                                                             

  YESTERDAY        0                         0      0        0       

  MONTH TO DATE    0                         0      0        0       

  SINCE MAR 1      0                         0      0        0       

  SINCE JAN 1      0                         0      0        0       

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





WIND (MPH)                                                           

  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     W (290)      

  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION    NW (300)      

  AVERAGE WIND SPEED     2.8                                         



                                                                     

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    76           200 AM                                     

 LOWEST     19           300 PM                                     

 AVERAGE    48                                                       



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



                                                                     

THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY

                         NORMAL    RECORD    YEAR                    

 MAXIMUM TEMPERATURE (F)   56        81      1989                    

 MINIMUM TEMPERATURE (F)   38        13      1900                    

                                             1877                    



                                                                     

SUNRISE AND SUNSET                                                   

MARCH 18 2010.........SUNRISE   715 AM EDT   SUNSET   718 PM EDT   

MARCH 19 2010.........SUNRISE   713 AM EDT   SUNSET   719 PM EDT   



                                                                    

-  INDICATES NEGATIVE NUMBERS.                                      

R  INDICATES RECORD WAS SET OR TIED.                                

MM INDICATES DATA IS MISSING.                                       

T  INDICATES TRACE AMOUNT.                                          









$$