Climatological Report (Daily)
Issued by NWS Sterling, VA

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707
CDUS41 KLWX 180739 CCA
CLIBWI

CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
239 AM EST MON DEC 18 2017


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

...THE BALTIMORE MD CLIMATE SUMMARY FOR DECEMBER 17 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         49    145 PM  68    1984  45      4       35
  MINIMUM         25    504 AM   5    1951  28     -3       27
  AVERAGE         37                        36      1       31

PRECIPITATION (IN)
  YESTERDAY        T             2.47 1888   0.10  -0.10     0.58
  MONTH TO DATE    0.52                      1.95  -1.43     1.98
  SINCE DEC 1      0.52                      1.95  -1.43     1.98
  SINCE JAN 1     37.85                     40.46  -2.61    39.73

SNOWFALL (IN)
  YESTERDAY        0.0          11.5  1932   0.1   -0.1
  MONTH TO DATE    3.8                       1.4    2.4
  SINCE JUL 1      3.8                       1.8    2.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       28                        29     -1       34
  MONTH TO DATE  471                       452     19      460
  SINCE DEC 1    471                       452     19      460
  SINCE JUL 1   1218                      1356   -138     1159

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1316                      1164    152     1551
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION    NE (50)
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION     E (70)
  AVERAGE WIND SPEED     3.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           100 AM
 LOWEST     50           100 PM
 AVERAGE    71

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


THE BALTIMORE MD CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   44        72      2006
 MINIMUM TEMPERATURE (F)   27         7      1919


SUNRISE AND SUNSET
DECEMBER 18 2017......SUNRISE   721 AM EST   SUNSET   446 PM EST
DECEMBER 19 2017......SUNRISE   722 AM EST   SUNSET   446 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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