Climatological Report (Daily)
Issued by NWS Sterling, VA

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725
CDUS41 KLWX 110539
CLIIAD

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
139 AM EDT SAT MAY 11 2024

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 10 2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2024


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         64  11:16 AM  90    1963  74    -10       71
  MINIMUM         50  11:59 PM  31    1966  51     -1       44
                                      1983
  AVERAGE         57                        62     -5       58

PRECIPITATION (IN)
  YESTERDAY        0.08          1.61 1990   0.15  -0.07     0.00
  MONTH TO DATE    1.60                      1.44   0.16     0.66
  SINCE MAR 1      7.23                      8.41  -1.18     5.53
  SINCE JAN 1     14.68                     13.96   0.72     9.16

SNOWFALL (IN)
  YESTERDAY        0.0          MM      MM   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE MAR 1      T                         4.0   -4.0       T
  SINCE JUL 1     11.7                      21.0   -9.3      0.4
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        8                         4      4        7
  MONTH TO DATE   23                        53    -30       82
  SINCE MAR 1    702                      1020   -318      865
  SINCE JUL 1   3666                      4530   -864     3829

 COOLING
  YESTERDAY        0                         2     -2        0
  MONTH TO DATE   42                        16     26        5
  SINCE MAR 1     86                        38     48       50
  SINCE JAN 1     89                        38     51       50
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    NE (60)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    NE (30)
  AVERAGE WIND SPEED     5.7


SKY COVER
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           7:00 PM
 LOWEST     80           2:00 AM
 AVERAGE    87

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        90      1993
 MINIMUM TEMPERATURE (F)   52        29      1966


SUNRISE AND SUNSET
MAY 11 2024...........SUNRISE   6:00 AM EDT   SUNSET   8:12 PM EDT
MAY 12 2024...........SUNRISE   5:59 AM EDT   SUNSET   8:13 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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