Records for Islip Area, New York (ISPthr) on 05-23
Record Highs
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1: 90°F (1992)
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2: 89°F (2021)
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3: 88°F (1994)
Record Lows
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1: 42°F (2006)
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2: 42°F (1968)
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3: 43°F (1976)
Lowest Highs
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1: 65°F (2021)
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2: 63°F (2013)
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3: 61°F (1975)
Highest Lows
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1: 54°F (2003)
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2: 54°F (1982)
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3: 57°F (1973)
Highest May temperature:
98°F on 05-20-1996.
Lowest May temperature:
32°F on 05-01-2008.
Average temperature is 59.8°F
Average high is 66°F
Average low is 53.6°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.31" (1979)
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2: 1.03" (1973)
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3: 0.68" (1999)
Precipitation data from 1963 to 2022.