Records for Riverside Area, California (RALthr) on 09-26
Record Highs
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1: 110°F (2010)
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2: 110°F (1921)
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3: 106°F (2009)
Record Lows
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1: 39°F (1948)
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2: 40°F (1934)
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3: 43°F (1911)
Lowest Highs
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1: 70°F (2015)
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2: 68°F (2022)
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3: 68°F (1997)
Highest Lows
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1: 72°F (1939)
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2: 72°F (1933)
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3: 72°F (1904)
Highest September temperature:
117°F on 09-05-2020.
Lowest September temperature:
37°F on 09-15-1902.
Average temperature is 74.2°F
Average high is 89.3°F
Average low is 59.1°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 0.32" (1982)
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2: 0.20" (1952)
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3: 0.14" (1931)
Precipitation data from 1893 to 2022.