Records for Islip Area, New York (ISPthr) on 09-09
Record Highs
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1: 91°F (2016)
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2: 89°F (1996)
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3: 87°F (2002)
Record Lows
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1: 45°F (1986)
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2: 49°F (2013)
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3: 50°F (1990)
Lowest Highs
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1: 75°F (2015)
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2: 73°F (2016)
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3: 72°F (1999)
Highest Lows
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1: 63°F (2018)
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2: 65°F (1966)
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3: 69°F (1997)
Highest September temperature:
94°F on 09-03-1973.
Lowest September temperature:
38°F on 09-20-1979.
Average temperature is 69.5°F
Average high is 75.7°F
Average low is 63.3°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 0.72" (1969)
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2: 0.50" (2008)
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3: 0.43" (2021)
Precipitation data from 1963 to 2022.