Records for Tri-Cities Area, Washington (PSCthr) on 05-31
Record Highs
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1: 104°F (1910)
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2: 103°F (1986)
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3: 99°F (1911)
Record Lows
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1: 35°F (1920)
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2: 39°F (1926)
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3: 40°F (1955)
Lowest Highs
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1: 65°F (1997)
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2: 65°F (1986)
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3: 65°F (1972)
Highest Lows
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1: 56°F (1971)
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2: 63°F (1966)
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3: 64°F (2000)
Highest May temperature:
104°F on 05-30-1983.
Lowest May temperature:
26°F on 05-01-1905.
Average temperature is 65°F
Average high is 79.4°F
Average low is 50.7°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 0.39" (2000)
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2: 0.36" (1971)
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3: 0.35" (1997)
Precipitation data from 1894 to 2022.