Records for Islip Area, New York (ISPthr) on 08-18
Record Highs
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1: 92°F (2002)
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2: 91°F (1998)
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3: 90°F (1995)
Record Lows
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1: 52°F (1979)
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2: 56°F (1981)
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3: 56°F (1968)
Lowest Highs
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1: 76°F (2002)
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2: 75°F (2015)
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3: 74°F (2017)
Highest Lows
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1: 67°F (1979)
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2: 70°F (2000)
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3: 75°F (2007)
Highest August temperature:
100°F on 08-02-1975.
Lowest August temperature:
45°F on 08-30-1986.
Average temperature is 74.9°F
Average high is 80.5°F
Average low is 69.3°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.91" (2017)
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2: 1.32" (1998)
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3: 0.93" (2018)
Precipitation data from 1963 to 2022.