Records for Islip Area, New York (ISPthr) on 12-12
Record Highs
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1: 68°F (2015)
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2: 60°F (2008)
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3: 57°F (2021)
Record Lows
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1: 7°F (1988)
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2: 10°F (1977)
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3: 12°F (1968)
Lowest Highs
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1: 47°F (1979)
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2: 46°F (1964)
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3: 45°F (2015)
Highest Lows
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1: 19°F (1988)
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2: 28°F (1995)
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3: 30°F (2013)
Highest December temperature:
77°F on 12-07-1998.
Lowest December temperature:
-1°F on 12-31-1963.
Average temperature is 38.5°F
Average high is 44.5°F
Average low is 32.5°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 2.44" (2010)
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2: 1.86" (2008)
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3: 1.03" (1964)
Precipitation data from 1963 to 2022.