Why the Colorado River Suddenly Looks Healthier in Grand Junction

In early May, the Colorado River was really struggling to flow through Mesa County. River levels dropped so low that it became difficult to float down the river, but easy to walk across it in spots.

By the end of the month, the river appeared to have recovered some, yet Grand Junction only benefited from about half the usual amount of rain for the month. So how did the river rise? Let’s take a closer look.

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Grand Junction's Colorado River Got a Brief Boost in May

Read More: Where Does the Colorado River Start? Rocky Mountain Headwaters

According to the National Weather Service, Grand Junction averages about .83 inches of rain during May. In 2026, Grand Junction finished the month of May with about .44 inches of rain. We came up short, yet the Colorado River has risen to a higher level than it was 4 weeks ago. Who do we have to thank? Specifically, a heavy spring blizzard in the Colorado mountains on May 5 and 6. A second snowfall event passed through the mountains on May 17 and 18. The snowmelt and runoff from these weather events are why the river appears higher as we head into June.

Late-Season Storms Added Water, But Challenges Remain

May storms dropped a significant amount of snow in parts of Colorado’s Rocky Mountains. Higher elevations reported more than two feet of wintery precipitation in early and mid-May, allowing moisture to enter streams and tributaries that feed our river, providing an additional boost to the river. Experts say that it may not be very long before the river starts to dip again, though, especially when the summer’s high desert heat arrives.

Why the River Rose Even Though Grand Junction Stayed Dry

Read More: What Makes the Colorado River Brown in Grand Junction?

It’s easy to forget that Grand Junction’s rainfall and the Colorado River are not directly connected. While rain may be scarce in Mesa County, snowmelt and precipitation that falls hundreds of miles upstream in the mountains are what's pushing the river into Utah right now. Could this change by September? Likely, yes. However, it’s still one of those interesting parts of life on the Western Slope. A dry month can still coincide with rising river levels when the runoff flows downstream.

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