Records for Islip Area, New York (ISPthr) on 05-12
Record Highs
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1: 87°F (1991)
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2: 84°F (1970)
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3: 83°F (2004)
Record Lows
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1: 37°F (1990)
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2: 37°F (1983)
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3: 37°F (1969)
Lowest Highs
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1: 64°F (1993)
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2: 62°F (2015)
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3: 60°F (1985)
Highest Lows
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1: 48°F (2010)
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2: 51°F (2008)
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3: 55°F (1966)
Highest May temperature:
98°F on 05-20-1996.
Lowest May temperature:
32°F on 05-01-2008.
Average temperature is 56.6°F
Average high is 62.8°F
Average low is 50.4°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.74" (2006)
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2: 1.23" (2019)
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3: 0.69" (1968)
Precipitation data from 1963 to 2022.