Records for St Louis Area, Missouri (STLthr) on 09-21
Record Highs
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1: 97°F (1881)
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2: 96°F (2022)
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3: 96°F (1940)
Record Lows
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1: 40°F (1983)
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2: 42°F (1962)
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3: 42°F (1942)
Lowest Highs
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1: 75°F (2017)
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2: 75°F (1980)
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3: 74°F (2019)
Highest Lows
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1: 56°F (1875)
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2: 57°F (1995)
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3: 57°F (1913)
Highest September temperature:
104°F on 09-01-2011.
Lowest September temperature:
32°F on 09-28-1942.
Average temperature is 69.7°F
Average high is 79.7°F
Average low is 59.7°F
Temperature data from 1874 to 2022.
Record Precipitation
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1: 1.78" (1947)
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2: 1.70" (2021)
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3: 1.70" (1909)
Precipitation data from 1874 to 2022.