Records for Islip Area, New York (ISPthr) on 09-11
Record Highs
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1: 92°F (1983)
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2: 88°F (2013)
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3: 88°F (1989)
Record Lows
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1: 45°F (1969)
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2: 46°F (1975)
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3: 47°F (1995)
Lowest Highs
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1: 73°F (1983)
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2: 71°F (2013)
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3: 70°F (1989)
Highest Lows
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1: 66°F (2009)
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2: 67°F (1985)
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3: 67°F (1967)
Highest September temperature:
94°F on 09-03-1973.
Lowest September temperature:
38°F on 09-20-1979.
Average temperature is 68.8°F
Average high is 75°F
Average low is 62.5°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.05" (1968)
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2: 0.93" (2007)
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3: 0.71" (1964)
Precipitation data from 1963 to 2022.