Records for Wilmington Area, Delaware (ILGthr) on 09-18
Record Highs
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1: 89°F (2016)
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2: 89°F (1941)
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3: 88°F (1965)
Record Lows
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1: 40°F (1990)
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2: 40°F (1959)
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3: 41°F (1937)
Lowest Highs
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1: 73°F (1972)
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2: 72°F (1895)
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3: 71°F (1991)
Highest Lows
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1: 66°F (1990)
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2: 66°F (1937)
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3: 67°F (1981)
Highest September temperature:
100°F on 09-02-1953.
Lowest September temperature:
32°F on 09-27-1940.
Average temperature is 66.1°F
Average high is 74.3°F
Average low is 57.9°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 2.54" (2004)
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2: 2.20" (1945)
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3: 1.61" (1918)
Precipitation data from 1894 to 2022.