Records for Islip Area, New York (ISPthr) on 12-25
Record Highs
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1: 65°F (2015)
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2: 59°F (2020)
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3: 58°F (1979)
Record Lows
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1: 3°F (1983)
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2: 4°F (1980)
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3: 6°F (1968)
Lowest Highs
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1: 51°F (2015)
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2: 47°F (1965)
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3: 46°F (1964)
Highest Lows
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1: 11°F (1983)
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2: 17°F (1968)
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3: 27°F (2000)
Highest December temperature:
77°F on 12-07-1998.
Lowest December temperature:
-1°F on 12-31-1963.
Average temperature is 35.5°F
Average high is 41.7°F
Average low is 29.4°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.29" (2002)
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2: 1.05" (2020)
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3: 0.90" (1997)
Precipitation data from 1963 to 2022.