534 CDUS41 KOKX 170618 CLIISP CLIMATE REPORT NATIONAL WEATHER SERVICE NEW YORK, NY 218 AM EDT WED SEP 17 2025 ................................... ...THE ISLIP NY CLIMATE SUMMARY FOR SEPTEMBER 16 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 76 1044 AM 88 1998 75 1 76 MINIMUM 63 547 AM 44 1964 59 4 54 AVERAGE 70 67 3 65 PRECIPITATION (IN) YESTERDAY 0.00 2.26 1999 0.13 -0.13 0.00 MONTH TO DATE 1.24 1.85 -0.61 0.06 SINCE SEP 1 1.24 1.85 -0.61 0.06 SINCE JAN 1 25.02 32.15 -7.13 38.93 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 0 2 -2 0 MONTH TO DATE 2 10 -8 5 SINCE SEP 1 2 10 -8 5 SINCE JUL 1 2 13 -11 6 COOLING YESTERDAY 5 3 2 0 MONTH TO DATE 63 78 -15 40 SINCE SEP 1 63 78 -15 40 SINCE JAN 1 991 842 149 961 ................................................................... WIND (MPH) HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION E (70) HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (70) AVERAGE WIND SPEED 11.4 SKY COVER AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 90 500 AM LOWEST 41 1100 AM AVERAGE 66 .......................................................... THE ISLIP NY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 75 87 1991 MINIMUM TEMPERATURE (F) 59 45 1986 SUNRISE AND SUNSET SEPTEMBER 17 2025.....SUNRISE 635 AM EDT SUNSET 658 PM EDT SEPTEMBER 18 2025.....SUNRISE 636 AM EDT SUNSET 656 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$