


Climatological Report (Daily)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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455 CDUS41 KOKX 300620 CLIISP CLIMATE REPORT NATIONAL WEATHER SERVICE NEW YORK, NY 220 AM EDT SAT AUG 30 2025 ................................... ...THE ISLIP NY CLIMATE SUMMARY FOR AUGUST 29 2025... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1963 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 78 324 PM 92 2018 80 -2 79 MINIMUM 65 143 AM 46 1986 64 1 67 AVERAGE 72 72 0 73 PRECIPITATION (IN) YESTERDAY T 2.72 2002 0.11 -0.11 0.00 MONTH TO DATE 0.53 4.02 -3.49 6.46 SINCE JUN 1 8.05 11.28 -3.23 11.45 SINCE JAN 1 23.78 30.08 -6.30 38.83 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 JUN 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 0 0 0 0 MONTH TO DATE 0 0 0 1 SINCE JUN 1 18 31 -13 1 SINCE JUL 1 0 1 -1 1 COOLING YESTERDAY 7 7 0 8 MONTH TO DATE 240 258 -18 272 SINCE JUN 1 909 722 187 868 SINCE JAN 1 921 751 170 910 ................................................................... WIND (MPH) HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (220) HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (180) AVERAGE WIND SPEED 8.6 SKY COVER AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 81 600 AM LOWEST 48 600 PM AVERAGE 65 .......................................................... THE ISLIP NY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 79 96 1973 MINIMUM TEMPERATURE (F) 64 45 1986 SUNRISE AND SUNSET AUGUST 30 2025........SUNRISE 618 AM EDT SUNSET 727 PM EDT AUGUST 31 2025........SUNRISE 619 AM EDT SUNSET 726 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$