Records for Islip Area, New York (ISPthr) on 12-22
Record Highs
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1: 61°F (2013)
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2: 59°F (2011)
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3: 58°F (1998)
Record Lows
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1: 9°F (1989)
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2: 11°F (1985)
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3: 11°F (1963)
Lowest Highs
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1: 53°F (2013)
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2: 51°F (1990)
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3: 48°F (2015)
Highest Lows
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1: 18°F (1989)
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2: 28°F (2008)
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3: 29°F (1976)
Highest December temperature:
77°F on 12-07-1998.
Lowest December temperature:
-1°F on 12-31-1963.
Average temperature is 36.2°F
Average high is 42.3°F
Average low is 30.1°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.43" (1969)
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2: 1.25" (1983)
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3: 1.18" (1972)
Precipitation data from 1963 to 2022.