Records for Islip Area, New York (ISPthr) on 01-18
Record Highs
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1: 60°F (1973)
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2: 59°F (1986)
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3: 58°F (1990)
Record Lows
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1: -8°F (1965)
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2: -2°F (1982)
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3: 0°F (1977)
Lowest Highs
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1: 43°F (1990)
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2: 42°F (1995)
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3: 38°F (2017)
Highest Lows
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1: 12°F (1977)
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2: 17°F (2005)
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3: 17°F (1997)
Highest January temperature:
69°F on 01-29-2002.
Lowest January temperature:
-8°F on 01-18-1965.
Average temperature is 32°F
Average high is 38.1°F
Average low is 25.8°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 0.84" (1987)
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2: 0.83" (2015)
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3: 0.83" (1999)
Precipitation data from 1963 to 2022.