Climatological Report (Daily)
Issued by NWS Sterling, VA

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
CDUS41 KLWX 190531
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
126 AM EDT THU APR 19 2018


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 18 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         62    552 PM  90    1976  68     -6       73
  MINIMUM         29R   314 AM  30    2014  43    -14       48
  AVERAGE         46                        55     -9       61

PRECIPITATION (IN)
  YESTERDAY        0.00          0.59 1978   0.10  -0.10     0.00
  MONTH TO DATE    1.62                      2.09  -0.47     1.74
  SINCE MAR 1      3.41                      5.47  -2.06     5.86
  SINCE JAN 1      9.80                     10.89  -1.09     9.30

SNOWFALL (IN)
  YESTERDAY        0.0           0.0  2002   0.0    0.0
                                      2001
  MONTH TO DATE    T                         0.3   -0.3
  SINCE JUL 1     11.9                      22.0  -10.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       19                        10      9        4
  MONTH TO DATE  270                       233     37      129
  SINCE MAR 1   1049                       880    169      769
  SINCE JUL 1   4400                      4470    -70     3662

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE   15                         6      9       23
  SINCE MAR 1     15                         9      6       25
  SINCE JAN 1     20                         9     11       25
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     6.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    78           500 AM
 LOWEST     40           200 PM
 AVERAGE    59

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   68        91      2002
 MINIMUM TEMPERATURE (F)   43        27      2001
                                             1990


SUNRISE AND SUNSET
APRIL 19 2018.........SUNRISE   628 AM EDT   SUNSET   751 PM EDT
APRIL 20 2018.........SUNRISE   626 AM EDT   SUNSET   752 PM EDT


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




$$





USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.