Records for Riverside Area, California (RALthr) on 09-10
Record Highs
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1: 109°F (1948)
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2: 106°F (1990)
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3: 105°F (1979)
Record Lows
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1: 44°F (1911)
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2: 45°F (1931)
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3: 46°F (1950)
Lowest Highs
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1: 76°F (2015)
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2: 74°F (2012)
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3: 72°F (2021)
Highest Lows
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1: 73°F (1973)
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2: 74°F (1972)
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3: 76°F (2011)
Highest September temperature:
117°F on 09-05-2020.
Lowest September temperature:
37°F on 09-15-1902.
Average temperature is 78.8°F
Average high is 95.8°F
Average low is 61.8°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 1.36" (1976)
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2: 0.02" (1923)
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3: 0.01" (2019)
Precipitation data from 1893 to 2022.