Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 220529
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
129 AM EDT SUN OCT 22 2017


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR OCTOBER 21 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         78    309 PM  85    1947  67     11       79
  MINIMUM         52    628 AM  30    1974  49      3       58
                                      1952
  AVERAGE         65                        58      7       69

PRECIPITATION (IN)
  YESTERDAY        0.00          2.02 1904   0.11  -0.11     0.26
  MONTH TO DATE    0.83                      2.30  -1.47     0.87
  SINCE SEP 1      2.26                      6.02  -3.76     3.37
  SINCE JAN 1     31.91                     32.42  -0.51    28.30

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

DEGREE DAYS
 HEATING
  YESTERDAY        0                         8     -8        0
  MONTH TO DATE   31                       112    -81       38
  SINCE SEP 1     37                       136    -99       39
  SINCE JUL 1     37                       136    -99       39

 COOLING
  YESTERDAY        0                         1     -1        4
  MONTH TO DATE   85                        33     52       60
  SINCE SEP 1    326                       235     91      398
  SINCE JAN 1   1817                      1546    271     1984
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION    SE (130)
  HIGHEST GUST SPEED    10   HIGHEST GUST DIRECTION     E (110)
  AVERAGE WIND SPEED     3.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           300 AM
 LOWEST     27          1200 PM
 AVERAGE    60

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   66        84      1979
                                             1920
 MINIMUM TEMPERATURE (F)   48        29      1895


SUNRISE AND SUNSET
OCTOBER 22 2017.......SUNRISE   725 AM EDT   SUNSET   620 PM EDT
OCTOBER 23 2017.......SUNRISE   726 AM EDT   SUNSET   618 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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