Records for Tri-Cities Area, Washington (PSCthr) on 10-20
Record Highs
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1: 84°F (1907)
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2: 80°F (1940)
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3: 79°F (1915)
Record Lows
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1: 21°F (1949)
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2: 21°F (1911)
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3: 25°F (1943)
Lowest Highs
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1: 55°F (1973)
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2: 55°F (1937)
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3: 54°F (2003)
Highest Lows
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1: 49°F (1930)
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2: 49°F (1894)
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3: 53°F (1949)
Highest October temperature:
90°F on 10-06-2020.
Lowest October temperature:
9°F on 10-31-2002.
Average temperature is 50.3°F
Average high is 63.6°F
Average low is 37°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 0.90" (1947)
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2: 0.57" (1968)
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3: 0.27" (2000)
Precipitation data from 1894 to 2022.