Records for Tri-Cities Area, Washington (PSCthr) on 09-04
Record Highs
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1: 100°F (1934)
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2: 100°F (1911)
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3: 99°F (1942)
Record Lows
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1: 38°F (1912)
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2: 39°F (2015)
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3: 40°F (1918)
Lowest Highs
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1: 65°F (1949)
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2: 64°F (2022)
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3: 64°F (1995)
Highest Lows
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1: 68°F (1895)
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2: 70°F (1940)
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3: 71°F (1959)
Highest September temperature:
102°F on 09-01-2022.
Lowest September temperature:
21°F on 09-24-1926.
Average temperature is 68°F
Average high is 85.3°F
Average low is 50.8°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 0.91" (1911)
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2: 0.31" (1899)
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3: 0.18" (2000)
Precipitation data from 1894 to 2022.