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Climatological Report (Daily)
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CDUS41 KLWX 270525
CLIIAD

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
125 AM EDT WED OCT 27 2021

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 26 2021...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2021


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         65  10:40 AM  82    1978  64      1       61
  MINIMUM         52  10:13 PM  26    1972  41     11       46
                                      1987
                                      1988
  AVERAGE         59                        53      6       54

PRECIPITATION (IN)
  YESTERDAY        T             1.76 1977   0.11  -0.11      T
  MONTH TO DATE    2.93                      3.10  -0.17     1.70
  SINCE SEP 1      7.65                      7.04   0.61     3.98
  SINCE JAN 1     32.24                     36.26  -4.02    38.20

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 SEP 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        6                        12     -6       11
  MONTH TO DATE   57                       216   -159      153
  SINCE SEP 1     74                       261   -187      214
  SINCE JUL 1     74                       262   -188      214

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE   57                        19     38       17
  SINCE SEP 1    228                       171     57      152
  SINCE JAN 1   1480                      1227    253     1404
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    35   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    49   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED    18.1


SKY COVER
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           2:00 AM
 LOWEST     51           2:00 PM
 AVERAGE    72

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   64        84      1963
 MINIMUM TEMPERATURE (F)   41        21      1988


SUNRISE AND SUNSET
OCTOBER 27 2021.......SUNRISE   7:32 AM EDT   SUNSET   6:15 PM EDT
OCTOBER 28 2021.......SUNRISE   7:33 AM EDT   SUNSET   6:14 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
