Records for Tri-Cities Area, Washington (PSCthr) on 12-30
Record Highs
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1: 60°F (1938)
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2: 60°F (1920)
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3: 59°F (1929)
Record Lows
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1: -6°F (1990)
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2: -5°F (1927)
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3: -4°F (1968)
Lowest Highs
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1: 45°F (1938)
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2: 44°F (1954)
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3: 43°F (1917)
Highest Lows
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1: 7°F (1990)
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2: 10°F (1968)
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3: 18°F (1927)
Highest December temperature:
71°F on 12-01-2021.
Lowest December temperature:
-29°F on 12-13-1919.
Average temperature is 33.3°F
Average high is 40°F
Average low is 26.6°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 0.64" (2005)
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2: 0.39" (1977)
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3: 0.37" (1983)
Precipitation data from 1894 to 2022.