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In Union County, July highs average about 79°F and January lows about 23°F, with roughly 29 inches of rain a year. Long, cold winters put furnaces and pipes to the test.
Over the last 10 years the National Weather Service recorded hailstorms, floods and damaging thunderstorm winds in Union County, with hail up to 1.75 inches across. After a storm, a quick roof and gutter check catches damage before it turns into a leak.
Union County has had 7 federal disaster declarations in the last 25 years, most often for severe storms; the latest was Hagen Fire (2026).
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These are Union County figures — more about homes in La Grande.
Imbler · Elgin · Island City · La Grande · Cove · Union · Wallowa · Lostine