Climatological Report (Daily)
Issued by NWS Boston, MA

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465
CDUS41 KBOX 192200
CLIBOS


CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
550 PM EDT SAT MAY 19 2018


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

...THE BOSTON MA CLIMATE SUMMARY FOR MAY 19 2018...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         54    916 AM  90    2017  67    -13       90
                                      1986
                                      1949
  MINIMUM         46    253 AM  38    1882  51     -5       58
  AVERAGE         50                        59     -9       74

PRECIPITATION (IN)
  TODAY            0.10          1.55 1900   0.11  -0.01     0.01
  MONTH TO DATE    1.59                      1.99  -0.40     2.04
  SINCE MAR 1     11.28                     10.05   1.23    11.95
  SINCE JAN 1     19.97                     16.66   3.31    19.42

SNOWFALL (IN)
  TODAY            0.0           0.0  2002   0.0    0.0      0.0
                                      2001
                                      2000
  MONTH TO DATE    0.0                       0.1   -0.1      0.0
  SINCE MAR 1     24.6                       9.8   14.8     11.3
  SINCE JUL 1     59.9                      43.9   16.0     47.6
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  TODAY           15                         7      8        0
  MONTH TO DATE  128                       179    -51      201
  SINCE MAR 1   1564                      1518     46     1562
  SINCE JUL 1   5316                      5560   -244     5101

 COOLING
  TODAY            0                         1     -1        9
  MONTH TO DATE   34                         6     28       41
  SINCE MAR 1     34                         9     25       60
  SINCE JAN 1     34                         9     25       60
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     E (90)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     E (90)
  AVERAGE WIND SPEED     9.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           400 PM
 LOWEST     71           900 AM
 AVERAGE    84

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


THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   67        91      1996
 MINIMUM TEMPERATURE (F)   51        40      1892


SUNRISE AND SUNSET
MAY 19 2018...........SUNRISE   519 AM EDT   SUNSET   803 PM EDT
MAY 20 2018...........SUNRISE   518 AM EDT   SUNSET   804 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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