Records for Islip Area, New York (ISPthr) on 05-09
Record Highs
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1: 83°F (2000)
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2: 83°F (1993)
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3: 83°F (1964)
Record Lows
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1: 34°F (2020)
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2: 36°F (1987)
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3: 36°F (1985)
Lowest Highs
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1: 63°F (2000)
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2: 60°F (1964)
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3: 59°F (1979)
Highest Lows
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1: 49°F (2020)
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2: 49°F (1972)
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3: 50°F (1977)
Highest May temperature:
98°F on 05-20-1996.
Lowest May temperature:
32°F on 05-01-2008.
Average temperature is 55.8°F
Average high is 62°F
Average low is 49.6°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 2.20" (1998)
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2: 1.38" (2012)
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3: 1.38" (1978)
Precipitation data from 1963 to 2022.