Records for Tri-Cities Area, Washington (PSCthr) on 12-20
Record Highs
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1: 65°F (2019)
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2: 62°F (1994)
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3: 61°F (1933)
Record Lows
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1: -2°F (1998)
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2: 1°F (2008)
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3: 3°F (1984)
Lowest Highs
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1: 47°F (2020)
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2: 46°F (1966)
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3: 44°F (1972)
Highest Lows
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1: 15°F (1924)
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2: 16°F (1990)
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3: 16°F (1984)
Highest December temperature:
71°F on 12-01-2021.
Lowest December temperature:
-29°F on 12-13-1919.
Average temperature is 33.4°F
Average high is 40.2°F
Average low is 26.6°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 0.43" (1920)
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2: 0.42" (1952)
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3: 0.30" (1973)
Precipitation data from 1894 to 2022.