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Climatological Report (Daily)
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CDUS41 KLWX 310526
CLIIAD

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
126 AM EDT SAT OCT 31 2020

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 30 2020...

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1960 TO 2020


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         55   1:31 PM  84    2016  64     -9       65
  MINIMUM         42  11:59 PM  20    1969  40      2       58
  AVERAGE         49                        52     -3       62

PRECIPITATION (IN)
  YESTERDAY        0.16          1.00 2012   0.11   0.05     0.37
  MONTH TO DATE    3.54                      3.14   0.40     4.62
  SINCE SEP 1      5.82                      7.06  -1.24     5.03
  SINCE JAN 1     40.04                     35.06   4.98    34.87

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       16                        14      2        3
  MONTH TO DATE  183                       284   -101      180
  SINCE SEP 1    244                       340    -96      185
  SINCE JUL 1    244                       342    -98      185

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE   18                        16      2       51
  SINCE SEP 1    153                       157     -4      289
  SINCE JAN 1   1405                      1173    232     1524
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED    10.4


SKY COVER
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           2:00 AM
 LOWEST     56           3:00 PM
 AVERAGE    75

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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   63        81      1982
                                             2004
 MINIMUM TEMPERATURE (F)   39        21      1968


SUNRISE AND SUNSET
OCTOBER 31 2020.......SUNRISE   7:37 AM EDT   SUNSET   6:10 PM EDT
NOVEMBER  1 2020......SUNRISE   6:38 AM EST   SUNSET   5:09 PM EST


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




$$
National Weather Service National Headquarters
