Records for Riverside Area, California (RALthr) on 09-22
Record Highs
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1: 113°F (1943)
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2: 108°F (1949)
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3: 107°F (1939)
Record Lows
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1: 43°F (1944)
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2: 44°F (1950)
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3: 44°F (1924)
Lowest Highs
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1: 70°F (2012)
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2: 69°F (2015)
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3: 68°F (1984)
Highest Lows
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1: 69°F (1961)
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2: 71°F (2007)
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3: 72°F (2010)
Highest September temperature:
117°F on 09-05-2020.
Lowest September temperature:
37°F on 09-15-1902.
Average temperature is 75.5°F
Average high is 91.2°F
Average low is 59.8°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 0.18" (2007)
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2: 0.01" (1923)
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3: 0.00" (1905)
Precipitation data from 1893 to 2022.