Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 200526
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1225 AM EST SAT JAN 20 2018


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JANUARY 19 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         51    134 PM  71    1951  43      8       53
  MINIMUM         25    513 AM  -4    1994  28     -3       40
  AVERAGE         38                        36      2       47

PRECIPITATION (IN)
  YESTERDAY        0.00          1.41 1936   0.09  -0.09     0.00
  MONTH TO DATE    0.67                      1.71  -1.04     1.82
  SINCE DEC 1      1.17                      4.76  -3.59     4.43
  SINCE JAN 1      0.67                      1.71  -1.04     1.82

SNOWFALL (IN)
  YESTERDAY        0.0           7.0  1961   0.2   -0.2
  MONTH TO DATE    1.2                       3.0   -1.8
  SINCE JUL 1      3.1                       5.8   -2.7
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       27                        29     -2       18
  MONTH TO DATE  657                       551    106      458
  SINCE DEC 1   1449                      1337    112     1168
  SINCE JUL 1   1998                      2032    -34     1655

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


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED     6.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    81           600 AM
 LOWEST     20           300 PM
 AVERAGE    51

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


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 2018.......SUNRISE   723 AM EST   SUNSET   516 PM EST
JANUARY 21 2018.......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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