Records for Tri-Cities Area, Washington (PSCthr) on 09-30
Record Highs
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1: 87°F (1980)
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2: 87°F (1906)
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3: 86°F (1996)
Record Lows
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1: 32°F (1985)
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2: 32°F (1933)
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3: 33°F (1954)
Lowest Highs
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1: 64°F (2000)
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2: 59°F (2016)
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3: 59°F (1963)
Highest Lows
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1: 57°F (2019)
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2: 58°F (1930)
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3: 59°F (2007)
Highest September temperature:
102°F on 09-01-2022.
Lowest September temperature:
21°F on 09-24-1926.
Average temperature is 59°F
Average high is 74.6°F
Average low is 43.3°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 0.72" (2005)
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2: 0.45" (1942)
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3: 0.34" (2007)
Precipitation data from 1894 to 2022.