Records for Islip Area, New York (ISPthr) on 04-23
Record Highs
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1: 83°F (1973)
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2: 76°F (1990)
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3: 75°F (1992)
Record Lows
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1: 31°F (1989)
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2: 31°F (1982)
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3: 32°F (1994)
Lowest Highs
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1: 56°F (2019)
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2: 54°F (1996)
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3: 54°F (1973)
Highest Lows
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1: 45°F (1986)
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2: 48°F (2013)
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3: 48°F (1965)
Highest April temperature:
94°F on 04-17-2002.
Lowest April temperature:
16°F on 04-01-1969.
Average temperature is 51.8°F
Average high is 57.9°F
Average low is 45.7°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 4.63" (2006)
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2: 1.31" (2005)
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3: 1.18" (1998)
Precipitation data from 1963 to 2022.