Records for Islip Area, New York (ISPthr) on 01-20
Record Highs
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1: 56°F (2018)
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2: 56°F (2013)
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3: 54°F (2006)
Record Lows
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1: 2°F (1994)
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2: 3°F (1985)
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3: 6°F (1971)
Lowest Highs
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1: 41°F (2006)
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2: 40°F (1995)
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3: 39°F (2017)
Highest Lows
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1: 14°F (1994)
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2: 20°F (1984)
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3: 22°F (1970)
Highest January temperature:
69°F on 01-29-2002.
Lowest January temperature:
-8°F on 01-18-1965.
Average temperature is 31.9°F
Average high is 38°F
Average low is 25.7°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.93" (1978)
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2: 1.29" (2019)
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3: 1.10" (1995)
Precipitation data from 1963 to 2022.