Climatological Report (Daily)
Issued by NWS Upton, NY

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000
CDUS41 KOKX 290617
CLIISP


CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
116 AM EST FRI DEC 29 2017


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

...THE ISLIP NY CLIMATE SUMMARY FOR DECEMBER 28 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1963 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         18    338 PM  56    2008  40    -22       43
                                      1971
  MINIMUM         11   1159 PM   3    1966  25    -14       24
  AVERAGE         15                        32    -17       34

PRECIPITATION (IN)
  YESTERDAY        0.00          1.37 1967   0.12  -0.12     0.00
  MONTH TO DATE    2.05                      3.71  -1.66     2.86
  SINCE DEC 1      2.05                      3.71  -1.66     2.86
  SINCE JAN 1     43.37                     45.89  -2.52    34.32

SNOWFALL (IN)
  YESTERDAY        0.0           4.0  1990   0.3   -0.3      0.0
  MONTH TO DATE    4.7                       4.7    0.0      3.2
  SINCE OCT 1      4.7                       5.2   -0.5      3.2
  SINCE JUL 1      4.7                       5.2   -0.5      3.2
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       50                        33     17       31
  MONTH TO DATE  812                       811      1      786
  SINCE DEC 1    812                       811      1      786
  SINCE JUL 1   1563                      1827   -264     1577

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    972                       787    185     1124
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED    14.2


SKY COVER
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    58          1100 PM
 LOWEST     37          1200 PM
 AVERAGE    48

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


THE ISLIP NY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   40        65      1984
 MINIMUM TEMPERATURE (F)   25        11      1963


SUNRISE AND SUNSET
DECEMBER 29 2017......SUNRISE   716 AM EST   SUNSET   433 PM EST
DECEMBER 30 2017......SUNRISE   716 AM EST   SUNSET   434 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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