Climatological Report (Daily)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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CDUS41 KOKX 160620
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
220 AM EDT WED SEP 16 2026
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 15 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 71 215 PM 84 2008 75 -4 82
MINIMUM 52 518 AM 40 1975 59 -7 63
AVERAGE 62 67 -5 73
PRECIPITATION (IN)
YESTERDAY 0.00 3.12 1966 0.12 -0.12 0.00
MONTH TO DATE 4.21 1.72 2.49 1.24
SINCE SEP 1 4.21 1.72 2.49 1.24
SINCE JAN 1 35.84 32.02 3.82 25.02
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 0
DEGREE DAYS
HEATING
YESTERDAY 3 1 2 0
MONTH TO DATE 3 8 -5 2
SINCE SEP 1 3 8 -5 2
SINCE JUL 1 3 11 -8 2
COOLING
YESTERDAY 0 4 -4 8
MONTH TO DATE 92 75 17 58
SINCE SEP 1 92 75 17 58
SINCE JAN 1 965 839 126 986
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 5.1
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 1000 PM
LOWEST 45 1200 PM
AVERAGE 65
..........................................................
THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 88 1998
MINIMUM TEMPERATURE (F) 59 44 1964
SUNRISE AND SUNSET
SEPTEMBER 16 2026.....SUNRISE 634 AM EDT SUNSET 700 PM EDT
SEPTEMBER 17 2026.....SUNRISE 635 AM EDT SUNSET 658 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$