Records for Islip Area, New York (ISPthr) on 09-08
Record Highs
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1: 91°F (2015)
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2: 89°F (2010)
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3: 85°F (1976)
Record Lows
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1: 47°F (1984)
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2: 49°F (1986)
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3: 50°F (1988)
Lowest Highs
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1: 71°F (2015)
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2: 71°F (1999)
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3: 70°F (2007)
Highest Lows
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1: 67°F (1978)
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2: 68°F (1970)
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3: 69°F (1982)
Highest September temperature:
94°F on 09-03-1973.
Lowest September temperature:
38°F on 09-20-1979.
Average temperature is 69.9°F
Average high is 76.1°F
Average low is 63.6°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 2.40" (2004)
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2: 0.68" (1998)
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3: 0.19" (1969)
Precipitation data from 1963 to 2022.