Records for Islip Area, New York (ISPthr) on 07-21
Record Highs
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1: 101°F (1991)
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2: 99°F (2019)
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3: 93°F (2017)
Record Lows
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1: 52°F (1974)
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2: 56°F (1966)
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3: 56°F (1965)
Lowest Highs
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1: 79°F (2019)
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2: 76°F (1980)
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3: 75°F (1994)
Highest Lows
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1: 72°F (2009)
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2: 72°F (1989)
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3: 73°F (1984)
Highest July temperature:
104°F on 07-03-1966.
Lowest July temperature:
49°F on 07-02-1965.
Average temperature is 75.2°F
Average high is 80°F
Average low is 70.4°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 2.69" (1984)
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2: 0.85" (2009)
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3: 0.60" (1973)
Precipitation data from 1963 to 2022.