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 310526
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
126 AM EDT FRI JUL 31 2015


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 30 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         89   1154 AM  98    1988  88      1       79
  MINIMUM         69   1127 PM  48    2014  66      3       48
  AVERAGE         79                        77      2       64

PRECIPITATION (IN)
  YESTERDAY        1.15R         0.66 1970   0.13   1.02     0.00
  MONTH TO DATE    4.89                      3.55   1.34     2.09
  SINCE JUN 1     12.33                      7.53   4.80     6.71
  SINCE JAN 1     26.19                     24.35   1.84    31.06

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

DEGREE DAYS
 HEATING
  YESTERDAY        0                         0      0        1
  MONTH TO DATE    0                         0      0        3
  SINCE JUN 1     15                        15      0        5
  SINCE JUL 1      0                         0      0        3

 COOLING
  YESTERDAY       14                        12      2        0
  MONTH TO DATE  337                       355    -18      291
  SINCE JUN 1    614                       592     22      523
  SINCE JAN 1    796                       684    112      609
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    32   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    44   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     5.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    94           700 AM
 LOWEST     64          1200 PM
 AVERAGE    79

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   88        98      1999
 MINIMUM TEMPERATURE (F)   66        50      1997


SUNRISE AND SUNSET
JULY 31 2015..........SUNRISE   610 AM EDT   SUNSET   822 PM EDT
AUGUST  1 2015........SUNRISE   610 AM EDT   SUNSET   821 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.