Records for Islip Area, New York (ISPthr) on 12-10
Record Highs
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1: 61°F (2015)
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2: 58°F (2012)
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3: 58°F (1987)
Record Lows
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1: 6°F (1968)
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2: 13°F (2010)
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3: 14°F (1982)
Lowest Highs
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1: 50°F (2012)
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2: 46°F (1971)
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3: 45°F (2004)
Highest Lows
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1: 18°F (1968)
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2: 26°F (1977)
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3: 32°F (1978)
Highest December temperature:
77°F on 12-07-1998.
Lowest December temperature:
-1°F on 12-31-1963.
Average temperature is 39°F
Average high is 45°F
Average low is 33°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.00" (1994)
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2: 0.63" (1969)
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3: 0.62" (2012)
Precipitation data from 1963 to 2022.