Records for Islip Area, New York (ISPthr) on 09-12
Record Highs
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1: 90°F (2005)
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2: 88°F (1981)
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3: 87°F (1982)
Record Lows
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1: 45°F (1993)
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2: 46°F (1985)
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3: 48°F (2006)
Lowest Highs
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1: 73°F (1971)
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2: 70°F (2018)
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3: 70°F (2013)
Highest Lows
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1: 65°F (1985)
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2: 66°F (2010)
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3: 67°F (1965)
Highest September temperature:
94°F on 09-03-1973.
Lowest September temperature:
38°F on 09-20-1979.
Average temperature is 68.4°F
Average high is 74.6°F
Average low is 62.1°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 3.00" (1978)
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2: 1.35" (1971)
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3: 0.97" (1975)
Precipitation data from 1963 to 2022.