Records for Islip Area, New York (ISPthr) on 08-15
Record Highs
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1: 90°F (2016)
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2: 88°F (2018)
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3: 88°F (1988)
Record Lows
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1: 48°F (1964)
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2: 52°F (1972)
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3: 56°F (2013)
Lowest Highs
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1: 75°F (2016)
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2: 75°F (1969)
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3: 74°F (2002)
Highest Lows
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1: 65°F (1992)
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2: 67°F (1979)
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3: 72°F (2004)
Highest August temperature:
100°F on 08-02-1975.
Lowest August temperature:
45°F on 08-30-1986.
Average temperature is 75.2°F
Average high is 80.7°F
Average low is 69.7°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 2.01" (1969)
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2: 1.95" (2012)
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3: 1.17" (2011)
Precipitation data from 1963 to 2022.