Records for Islip Area, New York (ISPthr) on 09-13
Record Highs
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1: 89°F (2005)
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2: 85°F (2021)
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3: 84°F (1994)
Record Lows
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1: 48°F (1973)
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2: 49°F (2006)
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3: 49°F (1992)
Lowest Highs
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1: 70°F (1995)
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2: 70°F (1974)
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3: 69°F (2021)
Highest Lows
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1: 60°F (1964)
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2: 61°F (1965)
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3: 64°F (1978)
Highest September temperature:
94°F on 09-03-1973.
Lowest September temperature:
38°F on 09-20-1979.
Average temperature is 68°F
Average high is 74.3°F
Average low is 61.8°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.82" (1971)
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2: 1.38" (1988)
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3: 0.93" (1987)
Precipitation data from 1963 to 2022.