Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 200528
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1228 AM EST FRI JAN 20 2017


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JANUARY 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         53    347 PM  71    1951  43     10       28
  MINIMUM         40   1157 PM  -4    1994  28     12       15
  AVERAGE         47                        36     11       22

PRECIPITATION (IN)
  YESTERDAY        0.00          1.41 1936   0.09  -0.09     0.00
  MONTH TO DATE    1.82                      1.71   0.11     1.17
  SINCE DEC 1      4.43                      4.76  -0.33     6.01
  SINCE JAN 1      1.82                      1.71   0.11     1.17

SNOWFALL (IN)
  YESTERDAY        0.0           7.0  1961   0.2   -0.2
  MONTH TO DATE    0.4                       3.0   -2.6
  SINCE JUL 1      0.4                       5.8   -5.4
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       18                        29    -11       43
  MONTH TO DATE  458                       551    -93      536
  SINCE DEC 1   1168                      1337   -169      957
  SINCE JUL 1   1655                      2032   -377     1492

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        1
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED     6.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          1100 PM
 LOWEST     59           100 PM
 AVERAGE    76

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   43        70      1951
 MINIMUM TEMPERATURE (F)   28        -2      1985


SUNRISE AND SUNSET
JANUARY 20 2017.......SUNRISE   723 AM EST   SUNSET   516 PM EST
JANUARY 21 2017.......SUNRISE   722 AM EST   SUNSET   517 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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