Records for Tri-Cities Area, Washington (PSCthr) on 09-20
Record Highs
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1: 94°F (1939)
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2: 92°F (1896)
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3: 91°F (1906)
Record Lows
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1: 35°F (1928)
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2: 35°F (1895)
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3: 36°F (1926)
Lowest Highs
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1: 65°F (1905)
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2: 64°F (1918)
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3: 62°F (1943)
Highest Lows
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1: 60°F (2017)
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2: 61°F (1895)
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3: 66°F (2006)
Highest September temperature:
102°F on 09-01-2022.
Lowest September temperature:
21°F on 09-24-1926.
Average temperature is 62.9°F
Average high is 79.3°F
Average low is 46.4°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 0.27" (2006)
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2: 0.21" (1973)
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3: 0.20" (2000)
Precipitation data from 1894 to 2022.