Records for Riverside Area, California (RALthr) on 09-25
Record Highs
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1: 108°F (2010)
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2: 108°F (1921)
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3: 107°F (1936)
Record Lows
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1: 41°F (1934)
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2: 43°F (1923)
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3: 44°F (1920)
Lowest Highs
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1: 71°F (1982)
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2: 69°F (2015)
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3: 67°F (2022)
Highest Lows
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1: 69°F (1908)
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2: 71°F (1934)
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3: 71°F (1915)
Highest September temperature:
117°F on 09-05-2020.
Lowest September temperature:
37°F on 09-15-1902.
Average temperature is 74.5°F
Average high is 89.8°F
Average low is 59.3°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 0.50" (1997)
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2: 0.23" (1939)
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3: 0.22" (1986)
Precipitation data from 1893 to 2022.