Records for Islip Area, New York (ISPthr) on 04-15
Record Highs
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1: 78°F (2002)
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2: 77°F (2006)
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3: 76°F (2012)
Record Lows
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1: 28°F (1973)
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2: 29°F (1992)
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3: 29°F (1966)
Lowest Highs
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1: 54°F (2012)
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2: 54°F (2002)
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3: 50°F (1974)
Highest Lows
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1: 43°F (2018)
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2: 45°F (1972)
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3: 47°F (1979)
Highest April temperature:
94°F on 04-17-2002.
Lowest April temperature:
16°F on 04-01-1969.
Average temperature is 49.5°F
Average high is 55.6°F
Average low is 43.3°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.80" (2021)
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2: 1.59" (2007)
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3: 1.40" (1990)
Precipitation data from 1963 to 2022.