Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 190540
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1240 AM EST SUN NOV 19 2017


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR NOVEMBER 18 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         63   1159 PM  80    1921  57      6       70
  MINIMUM         37    436 AM  21    1959  41     -4       41
                                      1891
  AVERAGE         50                        49      1       56

PRECIPITATION (IN)
  YESTERDAY        T             0.90 1926   0.10  -0.10     0.00
  MONTH TO DATE    1.91                      1.88   0.03     0.21
  SINCE SEP 1      5.36                      9.00  -3.64     3.61
  SINCE JAN 1     35.01                     35.40  -0.39    28.54

SNOWFALL (IN)
  YESTERDAY        0.0           T    2008   0.0    0.0
                                      1984
                                      1951
  MONTH TO DATE    0.0                       0.2   -0.2
  SINCE JUL 1      0.0                       0.2   -0.2
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       15                        16     -1        9
  MONTH TO DATE  263                       243     20      173
  SINCE SEP 1    356                       472   -116      290
  SINCE JUL 1    356                       472   -116      290

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    3                         0      3        6
  SINCE SEP 1    335                       236     99      408
  SINCE JAN 1   1826                      1547    279     1994
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    29   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    39   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED    13.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85           100 AM
 LOWEST     46           100 PM
 AVERAGE    66

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        77      1928
 MINIMUM TEMPERATURE (F)   40        18      1891


SUNRISE AND SUNSET
NOVEMBER 19 2017......SUNRISE   655 AM EST   SUNSET   452 PM EST
NOVEMBER 20 2017......SUNRISE   656 AM EST   SUNSET   451 PM EST


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




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