National Weather Service - Climate Data These data are preliminary and have not undergone final quality control by the National Climatic Data Center (NCDC). Therefore, these data are subject to revision. Final and certified climate data can be accessed at the NCDC - http://www.ncdc.noaa.gov.

Climatological Report (Daily)


000
CDUS41 KOKX 150617
CLIISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
217 AM EDT THU APR 15 2021

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

...THE ISLIP NY CLIMATE SUMMARY FOR APRIL 14 2021...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1963 TO 2021


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         65    157 PM  73    1977  57      8       58
                                      2002
  MINIMUM         42    553 AM  28    1975  40      2       46
                                      2000
  AVERAGE         54                        49      5       52

PRECIPITATION (IN)
  YESTERDAY        0.00          1.91 1964   0.15  -0.15     0.00
  MONTH TO DATE    0.87                      2.13  -1.26     2.19
  SINCE MAR 1      4.79                      6.57  -1.78     6.39
  SINCE JAN 1     10.86                     13.47  -2.61    11.96

SNOWFALL (IN)
  YESTERDAY        0.0          MM      MM   0.0    0.0      0.0
  MONTH TO DATE    T                         0.4   -0.4      0.0
  SINCE MAR 1      T                         4.9   -4.9       T
  SINCE JUL 1     33.5                      24.6    8.9      6.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       11                        16     -5       13
  MONTH TO DATE  213                       259    -46      221
  SINCE MAR 1    905                      1056   -151      842
  SINCE JUL 1   4425                      4951   -526     4272

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


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED     5.4


SKY COVER
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           100 AM
 LOWEST     50           300 PM
 AVERAGE    70

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


THE ISLIP NY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   58        78      2002
 MINIMUM TEMPERATURE (F)   41        28      1973


SUNRISE AND SUNSET
APRIL 15 2021.........SUNRISE   613 AM EDT   SUNSET   732 PM EDT
APRIL 16 2021.........SUNRISE   612 AM EDT   SUNSET   733 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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