Records for Tri-Cities Area, Washington (PSCthr) on 05-30
Record Highs
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1: 104°F (1983)
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2: 100°F (1986)
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3: 98°F (2017)
Record Lows
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1: 37°F (1920)
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2: 39°F (2018)
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3: 39°F (2001)
Lowest Highs
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1: 64°F (2019)
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2: 64°F (2015)
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3: 64°F (1940)
Highest Lows
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1: 60°F (1991)
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2: 61°F (2000)
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3: 63°F (1989)
Highest May temperature:
104°F on 05-30-1983.
Lowest May temperature:
26°F on 05-01-1905.
Average temperature is 64.8°F
Average high is 79.2°F
Average low is 50.5°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 0.37" (1930)
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2: 0.22" (2000)
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3: 0.17" (1969)
Precipitation data from 1894 to 2022.