Records for Islip Area, New York (ISPthr) on 12-24
Record Highs
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1: 64°F (2015)
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2: 60°F (2014)
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3: 59°F (2020)
Record Lows
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1: 6°F (1983)
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2: 8°F (2022)
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3: 8°F (1975)
Lowest Highs
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1: 55°F (2015)
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2: 47°F (2003)
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3: 47°F (1979)
Highest Lows
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1: 16°F (2022)
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2: 21°F (1989)
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3: 21°F (1975)
Highest December temperature:
77°F on 12-07-1998.
Lowest December temperature:
-1°F on 12-31-1963.
Average temperature is 35.7°F
Average high is 41.9°F
Average low is 29.6°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.00" (2014)
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2: 0.81" (1994)
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3: 0.60" (2016)
Precipitation data from 1963 to 2022.