Climatological Report (Daily)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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CDUS41 KOKX 300622
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
222 AM EDT WED SEP 30 2026
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 29 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 72 1213 PM 81 2015 70 2 79
MINIMUM 56 156 AM 39 1976 54 2 65
AVERAGE 64 62 2 72
PRECIPITATION (IN)
YESTERDAY 0.00 2.15 2023 0.13 -0.13 0.00
MONTH TO DATE 8.76 3.46 5.30 1.58
SINCE SEP 1 8.76 3.46 5.30 1.58
SINCE JAN 1 40.39 33.76 6.63 25.36
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 1 4 -3 0
MONTH TO DATE 30 48 -18 7
SINCE SEP 1 30 48 -18 7
SINCE JUL 1 30 51 -21 7
COOLING
YESTERDAY 0 1 -1 7
MONTH TO DATE 111 107 4 148
SINCE SEP 1 111 107 4 148
SINCE JAN 1 984 871 113 1076
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 6.5
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 200 AM
LOWEST 68 100 PM
AVERAGE 84
..........................................................
THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 82 1986
2025
MINIMUM TEMPERATURE (F) 53 40 1992
2000
SUNRISE AND SUNSET
SEPTEMBER 30 2026.....SUNRISE 648 AM EDT SUNSET 636 PM EDT
OCTOBER 1 2026.......SUNRISE 649 AM EDT SUNSET 634 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$