Climatological Report (Daily)
Issued by NWS Upton, NY

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187
CDUS41 KOKX 190623
CLIISP

CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
223 AM EDT THU SEP 19 2024

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

...THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 18 2024...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2024


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         75    428 PM  85    1965  74      1       71
  MINIMUM         63    218 AM  43    1986  58      5       60
                                      1990
  AVERAGE         69                        66      3       66

PRECIPITATION (IN)
  YESTERDAY        0.00          1.34 2023   0.13  -0.13     1.34
  MONTH TO DATE    0.06                      2.11  -2.05     2.81
  SINCE SEP 1      0.06                      2.11  -2.05     2.81
  SINCE JAN 1     38.93                     32.41   6.52    33.34

SNOWFALL (IN)
  YESTERDAY        0.0          MM      MM   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE SEP 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  YESTERDAY        0                         2     -2        0
  MONTH TO DATE    5                        14     -9        3
  SINCE SEP 1      5                        14     -9        3
  SINCE JUL 1      6                        17    -11        3

 COOLING
  YESTERDAY        4                         3      1        1
  MONTH TO DATE   50                        84    -34      158
  SINCE SEP 1     50                        84    -34      158
  SINCE JAN 1    971                       848    123      936
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    NE (50)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    NE (60)
  AVERAGE WIND SPEED     8.0


SKY COVER
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           400 AM
 LOWEST     71          1200 PM
 AVERAGE    84

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


THE ISLIP NY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        85      1983
 MINIMUM TEMPERATURE (F)   58        44      1990


SUNRISE AND SUNSET
SEPTEMBER 19 2024.....SUNRISE   637 AM EDT   SUNSET   654 PM EDT
SEPTEMBER 20 2024.....SUNRISE   638 AM EDT   SUNSET   652 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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