Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 170534
CLIBWI


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1230 AM EST SUN DEC 17 2017


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

...THE BALTIMORE MD CLIMATE SUMMARY FOR DECEMBER 16 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         46    341 PM  71    1971  45      1       27
  MINIMUM         18   1214 AM  10    1951  28    -10       13
  AVERAGE         32                        36     -4       20

PRECIPITATION (IN)
  YESTERDAY        0.00          1.99 1974   0.11  -0.11     0.00
  MONTH TO DATE    0.52                      1.85  -1.33     1.40
  SINCE DEC 1      0.52                      1.85  -1.33     1.40
  SINCE JAN 1     37.85                     40.36  -2.51    39.15

SNOWFALL (IN)
  YESTERDAY        0.0           6.0  1973   0.1   -0.1
  MONTH TO DATE    3.8                       1.3    2.5
  SINCE JUL 1      3.8                       1.7    2.1
  SNOW DEPTH       T

DEGREE DAYS
 HEATING
  YESTERDAY       33                        29      4       45
  MONTH TO DATE  443                       423     20      426
  SINCE DEC 1    443                       423     20      426
  SINCE JUL 1   1190                      1327   -137     1125

 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    18   HIGHEST WIND DIRECTION    SW (240)
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     5.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           100 AM
 LOWEST     40           200 PM
 AVERAGE    70

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


THE BALTIMORE MD CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   45        68      1984
 MINIMUM TEMPERATURE (F)   28         5      1951


SUNRISE AND SUNSET
DECEMBER 17 2017......SUNRISE   720 AM EST   SUNSET   446 PM EST
DECEMBER 18 2017......SUNRISE   721 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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