Records for Islip Area, New York (ISPthr) on 04-30
Record Highs
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1: 79°F (2007)
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2: 77°F (1994)
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3: 77°F (1974)
Record Lows
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1: 33°F (1992)
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2: 34°F (1967)
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3: 35°F (2008)
Lowest Highs
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1: 58°F (1983)
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2: 58°F (1974)
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3: 52°F (1994)
Highest Lows
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1: 52°F (2018)
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2: 53°F (1966)
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3: 54°F (1992)
Highest April temperature:
94°F on 04-17-2002.
Lowest April temperature:
16°F on 04-01-1969.
Average temperature is 53.6°F
Average high is 59.8°F
Average low is 47.4°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 2.21" (2014)
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2: 1.12" (2005)
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3: 0.71" (1966)
Precipitation data from 1963 to 2022.