Records for Islip Area, New York (ISPthr) on 08-21
Record Highs
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1: 94°F (1995)
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2: 90°F (2005)
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3: 88°F (2013)
Record Lows
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1: 47°F (1977)
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2: 50°F (1992)
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3: 53°F (2000)
Lowest Highs
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1: 76°F (2009)
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2: 75°F (2005)
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3: 74°F (2016)
Highest Lows
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1: 60°F (2007)
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2: 66°F (1999)
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3: 67°F (1986)
Highest August temperature:
100°F on 08-02-1975.
Lowest August temperature:
45°F on 08-30-1986.
Average temperature is 74.5°F
Average high is 80.2°F
Average low is 68.8°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.31" (1997)
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2: 1.17" (1986)
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3: 1.04" (2007)
Precipitation data from 1963 to 2022.