Records for Riverside Area, California (RALthr) on 09-27
Record Highs
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1: 113°F (2010)
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2: 111°F (1921)
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3: 106°F (1993)
Record Lows
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1: 40°F (1948)
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2: 41°F (1915)
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3: 42°F (1923)
Lowest Highs
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1: 71°F (2010)
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2: 70°F (1914)
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3: 69°F (2016)
Highest Lows
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1: 68°F (1903)
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2: 74°F (2021)
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3: 74°F (1986)
Highest September temperature:
117°F on 09-05-2020.
Lowest September temperature:
37°F on 09-15-1902.
Average temperature is 73.8°F
Average high is 88.8°F
Average low is 58.9°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 0.55" (1919)
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2: 0.25" (1903)
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3: 0.09" (1918)
Precipitation data from 1893 to 2022.