Climatological Report (Daily)
Issued by NWS Sterling, VA

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373
CDUS41 KLWX 050628
CLIIAD

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
228 AM EDT SAT APR 05 2025

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 4 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         73   4:25 AM  85    2011  62     11       56
  MINIMUM         57  11:52 PM  22    1965  39     18       34
                                      2013
  AVERAGE         65                        51     14       45

PRECIPITATION (IN)
  YESTERDAY        0.11          1.47 1987   0.10   0.01     0.06
  MONTH TO DATE    0.14                      0.44  -0.30     1.28
  SINCE MAR 1      1.56                      3.94  -2.38     5.17
  SINCE JAN 1      5.98                      9.49  -3.51    12.62

SNOWFALL (IN)
  YESTERDAY        0.0           0.2  1990   0.0    0.0       T
  MONTH TO DATE    0.0                       0.0    0.0       T
  SINCE MAR 1      0.0                       3.9   -3.9       T
  SINCE JUL 1     15.5                      20.9   -5.4     11.7
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                        14    -14       20
  MONTH TO DATE   37                        60    -23       59
  SINCE MAR 1    487                       707   -220      523
  SINCE JUL 1   3809                      4217   -408     3487

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE MAR 1     17                         2     15        0
  SINCE JAN 1     17                         2     15        3
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    30   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    43   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED     6.0


SKY COVER
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           7:00 AM
 LOWEST     59           4:00 PM
 AVERAGE    78

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   63        88      2023
 MINIMUM TEMPERATURE (F)   40        22      1965


SUNRISE AND SUNSET
APRIL  5 2025.........SUNRISE   6:48 AM EDT   SUNSET   7:38 PM EDT
APRIL  6 2025.........SUNRISE   6:46 AM EDT   SUNSET   7:39 PM EDT


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




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