Records for Tri-Cities Area, Washington (PSCthr) on 09-23
Record Highs
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1: 93°F (2011)
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2: 93°F (1942)
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3: 91°F (1999)
Record Lows
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1: 28°F (2000)
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2: 33°F (2008)
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3: 34°F (1926)
Lowest Highs
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1: 65°F (2020)
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2: 62°F (1963)
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3: 61°F (2014)
Highest Lows
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1: 51°F (1934)
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2: 55°F (1926)
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3: 59°F (1984)
Highest September temperature:
102°F on 09-01-2022.
Lowest September temperature:
21°F on 09-24-1926.
Average temperature is 61.7°F
Average high is 78°F
Average low is 45.5°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 0.35" (1984)
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2: 0.18" (1917)
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3: 0.15" (1934)
Precipitation data from 1894 to 2022.