Records for Islip Area, New York (ISPthr) on 04-21
Record Highs
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1: 76°F (2007)
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2: 76°F (1996)
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3: 76°F (1976)
Record Lows
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1: 30°F (1965)
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2: 32°F (1981)
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3: 32°F (1979)
Lowest Highs
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1: 54°F (2012)
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2: 54°F (1976)
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3: 53°F (1980)
Highest Lows
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1: 46°F (1970)
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2: 47°F (1991)
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3: 48°F (2000)
Highest April temperature:
94°F on 04-17-2002.
Lowest April temperature:
16°F on 04-01-1969.
Average temperature is 51.2°F
Average high is 57.4°F
Average low is 45.1°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 3.44" (2000)
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2: 1.72" (1991)
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3: 0.95" (2009)
Precipitation data from 1963 to 2022.