Records for Riverside Area, California (RALthr) on 09-12
Record Highs
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1: 111°F (1971)
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2: 108°F (2000)
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3: 107°F (1913)
Record Lows
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1: 40°F (1916)
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2: 44°F (1952)
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3: 45°F (1949)
Lowest Highs
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1: 73°F (2015)
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2: 72°F (2022)
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3: 71°F (1959)
Highest Lows
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1: 78°F (2005)
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2: 78°F (1976)
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3: 78°F (1952)
Highest September temperature:
117°F on 09-05-2020.
Lowest September temperature:
37°F on 09-15-1902.
Average temperature is 78.4°F
Average high is 95.2°F
Average low is 61.5°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 0.16" (1939)
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2: 0.00" (1984)
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3: 0.00" (1904)
Precipitation data from 1893 to 2022.