What happened during the June 2021 heat dome in Kennewick, Washington?

The June 2021 heat dome pushed the Tri-Cities area above 115°F for several consecutive days, shattering records.

What are Kennewick, Washington's record high and low temperatures?

Kennewick's record high is 115°F and its record low is minus 12°F.

Kennewick receives only about 7 inches of annual precipitation in the rain shadow of the Cascades, drier than parts of Arizona.

Yes, summer diurnal temperature swings can exceed 40°F as hot afternoons give way to rapidly cooling desert nights.

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