Records for Riverside Area, California (RALthr) on 09-17
Record Highs
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1: 112°F (1922)
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2: 111°F (1913)
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3: 109°F (1917)
Record Lows
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1: 43°F (1908)
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2: 43°F (1893)
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3: 44°F (1906)
Lowest Highs
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1: 75°F (2014)
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2: 72°F (1984)
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3: 68°F (1997)
Highest Lows
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1: 74°F (1965)
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2: 74°F (1947)
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3: 76°F (1982)
Highest September temperature:
117°F on 09-05-2020.
Lowest September temperature:
37°F on 09-15-1902.
Average temperature is 77.1°F
Average high is 93.4°F
Average low is 60.7°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 1.27" (1963)
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2: 0.52" (1929)
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3: 0.08" (1989)
Precipitation data from 1893 to 2022.