Records for Riverside Area, California (RALthr) on 09-11
Record Highs
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1: 108°F (1955)
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2: 107°F (1990)
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3: 107°F (1983)
Record Lows
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1: 45°F (1952)
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2: 45°F (1931)
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3: 45°F (1901)
Lowest Highs
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1: 74°F (2015)
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2: 72°F (2022)
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3: 72°F (2017)
Highest Lows
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1: 69°F (1976)
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2: 76°F (1975)
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3: 77°F (1952)
Highest September temperature:
117°F on 09-05-2020.
Lowest September temperature:
37°F on 09-15-1902.
Average temperature is 78.6°F
Average high is 95.5°F
Average low is 61.6°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 0.66" (1976)
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2: 0.12" (1985)
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3: 0.03" (1984)
Precipitation data from 1893 to 2022.