Records for Islip Area, New York (ISPthr) on 07-18
Record Highs
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1: 98°F (1999)
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2: 95°F (2013)
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3: 95°F (2002)
Record Lows
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1: 58°F (1971)
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2: 60°F (1976)
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3: 60°F (1973)
Lowest Highs
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1: 76°F (2013)
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2: 76°F (1969)
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3: 75°F (2022)
Highest Lows
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1: 74°F (1979)
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2: 75°F (1989)
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3: 76°F (1994)
Highest July temperature:
104°F on 07-03-1966.
Lowest July temperature:
49°F on 07-02-1965.
Average temperature is 75°F
Average high is 79.8°F
Average low is 70.2°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 3.34" (2007)
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2: 1.38" (1995)
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3: 1.09" (1997)
Precipitation data from 1963 to 2022.