Records for Islip Area, New York (ISPthr) on 09-04
Record Highs
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1: 92°F (2018)
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2: 91°F (1985)
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3: 89°F (1973)
Record Lows
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1: 49°F (1975)
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2: 53°F (1989)
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3: 53°F (1976)
Lowest Highs
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1: 74°F (2018)
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2: 72°F (1970)
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3: 71°F (2011)
Highest Lows
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1: 65°F (1984)
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2: 66°F (1974)
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3: 67°F (1994)
Highest September temperature:
94°F on 09-03-1973.
Lowest September temperature:
38°F on 09-20-1979.
Average temperature is 71.2°F
Average high is 77.4°F
Average low is 65°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.65" (2012)
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2: 1.10" (1988)
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3: 0.73" (1969)
Precipitation data from 1963 to 2022.