Records for Islip Area, New York (ISPthr) on 08-31
Record Highs
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1: 94°F (2010)
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2: 94°F (1973)
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3: 91°F (2015)
Record Lows
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1: 45°F (1965)
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2: 49°F (1968)
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3: 50°F (1986)
Lowest Highs
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1: 75°F (1980)
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2: 74°F (2005)
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3: 74°F (2001)
Highest Lows
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1: 67°F (1985)
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2: 68°F (1975)
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3: 68°F (1965)
Highest August temperature:
100°F on 08-02-1975.
Lowest August temperature:
45°F on 08-30-1986.
Average temperature is 72.4°F
Average high is 78.5°F
Average low is 66.3°F
Temperature data from 1963 to 2022.
Record Precipitation
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1: 0.65" (1981)
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2: 0.41" (1970)
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3: 0.40" (1983)
Precipitation data from 1963 to 2022.