Records for Islip Area, New York (ISPthr) on 12-14
Record Highs
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1: 62°F (2015)
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2: 59°F (1975)
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3: 58°F (2019)
Record Lows
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1: 5°F (1982)
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2: 8°F (1976)
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3: 14°F (2005)
Lowest Highs
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1: 52°F (2015)
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2: 47°F (2001)
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3: 46°F (2019)
Highest Lows
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1: 25°F (2010)
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2: 25°F (2005)
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3: 28°F (1989)
Highest December temperature:
77°F on 12-07-1998.
Lowest December temperature:
-1°F on 12-31-1963.
Average temperature is 38°F
Average high is 44°F
Average low is 32°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 1.62" (1977)
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2: 1.61" (2019)
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3: 1.22" (2003)
Precipitation data from 1963 to 2022.