Records for Islip Area, New York (ISPthr) on 09-14
Record Highs
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1: 86°F (1976)
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2: 85°F (1972)
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3: 84°F (1981)
Record Lows
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1: 41°F (1975)
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2: 48°F (1986)
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3: 48°F (1963)
Lowest Highs
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1: 71°F (2003)
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2: 70°F (2011)
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3: 69°F (2008)
Highest Lows
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1: 60°F (1963)
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2: 62°F (1975)
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3: 65°F (1986)
Highest September temperature:
94°F on 09-03-1973.
Lowest September temperature:
38°F on 09-20-1979.
Average temperature is 67.6°F
Average high is 73.9°F
Average low is 61.4°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.44" (1973)
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2: 1.39" (1984)
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3: 1.21" (1989)
Precipitation data from 1963 to 2022.