Records for Islip Area, New York (ISPthr) on 04-17
Record Highs
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1: 94°F (2002)
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2: 90°F (1976)
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3: 79°F (2012)
Record Lows
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1: 30°F (2020)
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2: 30°F (2005)
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3: 30°F (1971)
Lowest Highs
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1: 61°F (2002)
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2: 57°F (2017)
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3: 56°F (2012)
Highest Lows
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1: 45°F (1992)
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2: 46°F (2003)
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3: 47°F (1967)
Highest April temperature:
94°F on 04-17-2002.
Lowest April temperature:
16°F on 04-01-1969.
Average temperature is 50.1°F
Average high is 56.2°F
Average low is 44°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.00" (1986)
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2: 0.73" (1998)
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3: 0.69" (1991)
Precipitation data from 1963 to 2022.