Records for Islip Area, New York (ISPthr) on 04-01
Record Highs
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1: 67°F (1999)
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2: 64°F (1982)
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3: 63°F (1979)
Record Lows
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1: 16°F (1969)
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2: 19°F (1964)
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3: 20°F (1965)
Lowest Highs
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1: 54°F (2016)
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2: 53°F (1998)
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3: 49°F (2008)
Highest Lows
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1: 42°F (2011)
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2: 42°F (2001)
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3: 42°F (1965)
Highest April temperature:
94°F on 04-17-2002.
Lowest April temperature:
16°F on 04-01-1969.
Average temperature is 44.7°F
Average high is 50.9°F
Average low is 38.5°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.78" (1998)
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2: 1.49" (1973)
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3: 1.10" (1996)
Precipitation data from 1963 to 2022.