438
CDUS41 KOKX 180652
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
152 AM EST SUN JAN 18 2026
...............................
..THE ISLIP NY CLIMATE SUMMARY FOR JANUARY 17 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 44 1109 AM 55 1999 39 5 42
MINIMUM 26 1145 PM -3 1965 24 2 22
AVERAGE 35 32 3 32
PRECIPITATION (IN)
YESTERDAY 0.10 1.48 2022 0.12 -0.02 T
MONTH TO DATE 1.13 2.10 -0.97 0.03
SINCE DEC 1 4.90 6.81 -1.91 6.26
SINCE JAN 1 1.13 2.10 -0.97 0.03
SNOWFALL (IN)
YESTERDAY T 4.7 1985 0.3 -0.3 T
MONTH TO DATE 0.8 5.0 -4.2 0.4
SINCE DEC 1 13.3 9.5 3.8 2.5
SINCE JUL 1 13.3 10.0 3.3 2.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 30 34 -4 33
MONTH TO DATE 486 553 -67 558
SINCE DEC 1 1430 1418 12 1431
SINCE JUL 1 2219 2357 -138 2121
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 6.2
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
LIGHT SNOW
SLEET
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 900 PM
LOWEST 39 500 AM
AVERAGE 70
......................................................
THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 39 60 1973
MINIMUM TEMPERATURE (F) 24 -8 1965
SUNRISE AND SUNSET
JANUARY 18 2026.......SUNRISE 713 AM EST SUNSET 453 PM EST
JANUARY 19 2026.......SUNRISE 712 AM EST SUNSET 454 PM EST
- 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