Records for Tri-Cities Area, Washington (PSCthr) on 12-15
Record Highs
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1: 65°F (1959)
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2: 62°F (1917)
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3: 59°F (1999)
Record Lows
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1: -14°F (1919)
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2: -2°F (1932)
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3: 2°F (1972)
Lowest Highs
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1: 50°F (1959)
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2: 48°F (2002)
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3: 47°F (1999)
Highest Lows
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1: 7°F (1919)
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2: 13°F (1922)
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3: 18°F (1931)
Highest December temperature:
71°F on 12-01-2021.
Lowest December temperature:
-29°F on 12-13-1919.
Average temperature is 33.8°F
Average high is 40.7°F
Average low is 27°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 0.40" (1899)
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2: 0.30" (1981)
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3: 0.30" (1926)
Precipitation data from 1894 to 2022.