Records for Islip Area, New York (ISPthr) on 05-31
Record Highs
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1: 93°F (2022)
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2: 92°F (1987)
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3: 90°F (1988)
Record Lows
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1: 41°F (1990)
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2: 44°F (2001)
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3: 44°F (1965)
Lowest Highs
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1: 69°F (1987)
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2: 68°F (2011)
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3: 68°F (1986)
Highest Lows
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1: 55°F (1984)
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2: 61°F (1967)
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3: 63°F (1992)
Highest May temperature:
98°F on 05-20-1996.
Lowest May temperature:
32°F on 05-01-2008.
Average temperature is 62.7°F
Average high is 68.8°F
Average low is 56.5°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.94" (1984)
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2: 1.61" (1992)
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3: 0.87" (1993)
Precipitation data from 1963 to 2022.