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 270525
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
124 AM EDT THU JUL 27 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 26 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         84    431 PM  98    2012  88     -4       95
                                      1966
  MINIMUM         61    423 AM  50    1976  66     -5       76
  AVERAGE         73                        77     -4       86

PRECIPITATION (IN)
  YESTERDAY        0.00          0.76 1989   0.12  -0.12     0.00
  MONTH TO DATE    7.11                      3.06   4.05     1.37
  SINCE JUN 1      8.39                      7.04   1.35     7.72
  SINCE JAN 1     27.48                     23.86   3.62    25.39

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

DEGREE DAYS
 HEATING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE JUN 1      6                        15     -9        3
  SINCE JUL 1      0                         0      0        0

 COOLING
  YESTERDAY        8                        12     -4       21
  MONTH TO DATE  363                       307     56      374
  SINCE JUN 1    619                       544     75      627
  SINCE JAN 1    756                       636    120      725
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    SE (150)
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION    SE (140)
  AVERAGE WIND SPEED     4.1


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    93           200 AM
 LOWEST     47           400 PM
 AVERAGE    70

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   88        98      1993
 MINIMUM TEMPERATURE (F)   66        52      1977


SUNRISE AND SUNSET
JULY 27 2017..........SUNRISE   607 AM EDT   SUNSET   826 PM EDT
JULY 28 2017..........SUNRISE   607 AM EDT   SUNSET   825 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.