Records for Islip Area, New York (ISPthr) on 09-06
Record Highs
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1: 90°F (1985)
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2: 89°F (1983)
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3: 88°F (2018)
Record Lows
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1: 49°F (2000)
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2: 49°F (1988)
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3: 49°F (1965)
Lowest Highs
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1: 75°F (1985)
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2: 74°F (1983)
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3: 73°F (2018)
Highest Lows
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1: 59°F (1963)
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2: 63°F (1974)
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3: 67°F (2019)
Highest September temperature:
94°F on 09-03-1973.
Lowest September temperature:
38°F on 09-20-1979.
Average temperature is 70.5°F
Average high is 76.7°F
Average low is 64.4°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 2.29" (2008)
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2: 1.69" (2017)
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3: 0.87" (2011)
Precipitation data from 1963 to 2022.