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Climatological Report (Daily)
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CDUS41 KLWX 270531
CLIIAD

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
131 AM EDT WED SEP 27 2023

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 26 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2023


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         61   5:05 PM  93    2007  75    -14       78
  MINIMUM         58   7:37 AM  38    1964  54      4       53
                                      1983
  AVERAGE         60                        65     -5       66

PRECIPITATION (IN)
  YESTERDAY        0.11          2.15 1975   0.13  -0.02     0.00
  MONTH TO DATE    6.61                      3.37   3.24     2.81
  SINCE SEP 1      6.61                      3.37   3.24     2.81
  SINCE JAN 1     25.83                     32.59  -6.76    30.31

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

DEGREE DAYS
 HEATING
  YESTERDAY        5                         3      2        0
  MONTH TO DATE   11                        28    -17       14
  SINCE SEP 1     11                        28    -17       14
  SINCE JUL 1     11                        29    -18       14

 COOLING
  YESTERDAY        0                         3     -3        1
  MONTH TO DATE  211                       143     68      176
  SINCE SEP 1    211                       143     68      176
  SINCE JAN 1   1326                      1199    127     1354
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    NE (30)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     N (10)
  AVERAGE WIND SPEED     7.4


SKY COVER
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           6:00 AM
 LOWEST     86          10:00 PM
 AVERAGE    90

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   75        96      1998
 MINIMUM TEMPERATURE (F)   53        35      1984


SUNRISE AND SUNSET
SEPTEMBER 27 2023.....SUNRISE   7:02 AM EDT   SUNSET   6:59 PM EDT
SEPTEMBER 28 2023.....SUNRISE   7:03 AM EDT   SUNSET   6:58 PM EDT


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




$$
National Weather Service National Headquarters
