Records for Islip Area, New York (ISPthr) on 12-15
Record Highs
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1: 62°F (2015)
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2: 59°F (2008)
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3: 59°F (2001)
Record Lows
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1: 11°F (1968)
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2: 12°F (2017)
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3: 12°F (2005)
Lowest Highs
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1: 50°F (2015)
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2: 46°F (2011)
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3: 46°F (1983)
Highest Lows
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1: 27°F (2010)
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2: 27°F (1963)
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3: 29°F (2004)
Highest December temperature:
77°F on 12-07-1998.
Lowest December temperature:
-1°F on 12-31-1963.
Average temperature is 37.8°F
Average high is 43.8°F
Average low is 31.8°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.55" (2013)
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2: 1.46" (1981)
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3: 0.99" (1987)
Precipitation data from 1963 to 2022.