Records for Islip Area, New York (ISPthr) on 09-19
Record Highs
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1: 85°F (1983)
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2: 84°F (2022)
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3: 83°F (1985)
Record Lows
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1: 44°F (1990)
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2: 45°F (1984)
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3: 46°F (2019)
Lowest Highs
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1: 69°F (2016)
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2: 69°F (2003)
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3: 68°F (2017)
Highest Lows
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1: 62°F (2004)
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2: 62°F (1987)
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3: 63°F (2020)
Highest September temperature:
94°F on 09-03-1973.
Lowest September temperature:
38°F on 09-20-1979.
Average temperature is 65.7°F
Average high is 72°F
Average low is 59.4°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.61" (1972)
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2: 1.29" (2016)
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3: 0.98" (2000)
Precipitation data from 1963 to 2022.