Records for Sioux Falls Area, South Dakota (FSDthr) on 08-20
Record Highs
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1: 99°F (1955)
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2: 98°F (1947)
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3: 96°F (1972)
Record Lows
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1: 34°F (1950)
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2: 43°F (1970)
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3: 43°F (1927)
Lowest Highs
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1: 75°F (1959)
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2: 72°F (1974)
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3: 71°F (1975)
Highest Lows
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1: 68°F (1990)
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2: 69°F (2004)
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3: 69°F (1966)
Highest August temperature:
109°F on 08-24-1936.
Lowest August temperature:
34°F on 08-20-1950.
Average temperature is 70.7°F
Average high is 80.9°F
Average low is 60.5°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 1.51" (2002)
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2: 1.30" (1969)
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3: 1.18" (2003)
Precipitation data from 1893 to 2022.