Records for Islip Area, New York (ISPthr) on 05-20
Record Highs
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1: 98°F (1996)
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2: 86°F (1975)
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3: 82°F (1978)
Record Lows
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1: 35°F (1992)
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2: 39°F (2008)
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3: 39°F (2002)
Lowest Highs
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1: 62°F (1996)
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2: 61°F (2019)
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3: 60°F (1986)
Highest Lows
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1: 51°F (2000)
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2: 54°F (2005)
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3: 55°F (2008)
Highest May temperature:
98°F on 05-20-1996.
Lowest May temperature:
32°F on 05-01-2008.
Average temperature is 58.9°F
Average high is 65.1°F
Average low is 52.6°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.47" (1972)
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2: 0.90" (1984)
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3: 0.53" (2008)
Precipitation data from 1963 to 2022.