Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 200534
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
134 AM EDT SUN AUG 20 2017


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR AUGUST 19 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         91    258 PM  98    2002  86      5       92
  MINIMUM         73   1159 PM  53    1924  70      3       74
  AVERAGE         82                        78      4       83

PRECIPITATION (IN)
  YESTERDAY        0.01          3.74 1950   0.09  -0.08     0.00
  MONTH TO DATE    3.54                      1.86   1.68     2.10
  SINCE JUN 1     13.82                      9.37   4.45     8.91
  SINCE JAN 1     28.61                     25.33   3.28    24.24

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                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE JUN 1      1                         6     -5        0
  SINCE JUL 1      0                         0      0        0

 COOLING
  YESTERDAY       17                        13      4       18
  MONTH TO DATE  264                       261      3      359
  SINCE JUN 1   1164                      1032    132     1261
  SINCE JAN 1   1362                      1166    196     1389
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     N (350)
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION    NW (310)
  AVERAGE WIND SPEED     7.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97          1200 AM
 LOWEST     44           300 PM
 AVERAGE    71

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   86       101      1983
 MINIMUM TEMPERATURE (F)   70        50      1896


SUNRISE AND SUNSET
AUGUST 20 2017........SUNRISE   627 AM EDT   SUNSET   756 PM EDT
AUGUST 21 2017........SUNRISE   627 AM EDT   SUNSET   754 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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