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 240531
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
130 AM EDT TUE OCT 24 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 23 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         75    130 PM  85    1978  66      9       70
  MINIMUM         51    255 AM  21    1969  41     10       43
  AVERAGE         63                        54      9       57

PRECIPITATION (IN)
  YESTERDAY        0.03          2.63 1990   0.10  -0.07     0.00
  MONTH TO DATE    1.51                      2.39  -0.88     0.57
  SINCE SEP 1      3.26                      6.31  -3.05     3.12
  SINCE JAN 1     36.26                     34.31   1.95    31.12

SNOWFALL (IN)
  YESTERDAY        0.0          MM      MM   0.0    0.0
  MONTH TO DATE    0.0                       0.0    0.0
  SINCE JUL 1      T                         0.0    0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        2                        12    -10        8
  MONTH TO DATE   92                       195   -103      113
  SINCE SEP 1    132                       251   -119      119
  SINCE JUL 1    133                       253   -120      119

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE   64                        16     48       34
  SINCE SEP 1    219                       157     62      289
  SINCE JAN 1   1280                      1173    107     1552
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION    SE (140)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION    SE (130)
  AVERAGE WIND SPEED     9.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     68          1200 PM
 AVERAGE    84

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   66        84      2001
 MINIMUM TEMPERATURE (F)   41        15      1969


SUNRISE AND SUNSET
OCTOBER 24 2017.......SUNRISE   729 AM EDT   SUNSET   619 PM EDT
OCTOBER 25 2017.......SUNRISE   730 AM EDT   SUNSET   617 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.