Records for Islip Area, New York (ISPthr) on 05-15
Record Highs
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1: 82°F (1976)
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2: 81°F (1991)
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3: 79°F (2020)
Record Lows
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1: 40°F (1999)
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2: 40°F (1968)
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3: 41°F (2013)
Lowest Highs
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1: 61°F (2014)
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2: 61°F (2012)
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3: 60°F (1976)
Highest Lows
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1: 53°F (1978)
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2: 55°F (1973)
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3: 56°F (1967)
Highest May temperature:
98°F on 05-20-1996.
Lowest May temperature:
32°F on 05-01-2008.
Average temperature is 57.4°F
Average high is 63.6°F
Average low is 51.2°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 0.64" (1967)
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2: 0.54" (2006)
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3: 0.51" (2012)
Precipitation data from 1963 to 2022.