440
CDUS41 KOKX 170618
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
218 AM EDT SUN MAY 17 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR MAY 16 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 73 144 PM 86 1998 68 5 72
MINIMUM 47 450 AM 39 2000 51 -4 61
AVERAGE 60 60 0 67
PRECIPITATION (IN)
YESTERDAY 0.00 4.01 1989 0.09 -0.09 T
MONTH TO DATE 0.70 1.64 -0.94 2.26
SINCE MAR 1 7.04 10.21 -3.17 9.00
SINCE JAN 1 13.28 17.16 -3.88 13.32
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 MAR 1 0.2 7.1 -6.9 0.0
SINCE JUL 1 61.8 31.8 30.0 11.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 5 6 -1 0
MONTH TO DATE 138 129 9 38
SINCE MAR 1 1288 1369 -81 1011
SINCE JUL 1 5144 5088 56 4493
COOLING
YESTERDAY 0 1 -1 2
MONTH TO DATE 0 3 -3 6
SINCE MAR 1 11 5 6 6
SINCE JAN 1 11 5 6 6
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 11.3
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 400 AM
LOWEST 40 300 PM
AVERAGE 68
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 85 1974
MINIMUM TEMPERATURE (F) 51 40 1967
1983
1984
SUNRISE AND SUNSET
MAY 17 2026...........SUNRISE 533 AM EDT SUNSET 805 PM EDT
MAY 18 2026...........SUNRISE 532 AM EDT SUNSET 806 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page