Records for Riverside Area, California (RALthr) on 12-31
Record Highs
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1: 91°F (1917)
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2: 87°F (1945)
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3: 83°F (2011)
Record Lows
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1: 25°F (1918)
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2: 26°F (1902)
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3: 27°F (1972)
Lowest Highs
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1: 55°F (1913)
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2: 53°F (2022)
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3: 53°F (1996)
Highest Lows
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1: 49°F (1936)
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2: 49°F (1915)
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3: 51°F (2014)
Highest December temperature:
94°F on 12-03-1958.
Lowest December temperature:
21°F on 12-12-1949.
Average temperature is 56°F
Average high is 68.4°F
Average low is 43.6°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 1.40" (1909)
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2: 1.36" (1936)
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3: 0.85" (1904)
Precipitation data from 1893 to 2022.