Rain totals last 30 days; What’s next?

Tomer’s Take: Parts of Colorado are soaked after record rainfall totals over the last 30 days. Some places are pushing a foot of rainfall. The pattern stays wetter than normal through June 15 then returns to a “normal” precipitation pattern after June 15 through June 30.

Denver Front Range

Accumulated precipitation May 1 – June 6, 2023. Denver averaging 7-9 inches.

Northern Colorado

Fort Collins averaging 6-8 inches.

Colorado Springs

This fell as snow on Pikes Peak with an estimated 3-4 feet of accumulation.

Salt Lake City. Drier than normal. Some of this fell as snow at higher elevations.

Lake Tahoe/Reno. Some of this fell as snow at higher elevations. Wetter than normal.

Record Moisture

May 2023:

Across the West:

Why Is This Happening?

An abnormally strong Subtropical Jet is escorting extra moisture and areas of low pressure directly into the West.

What’s Next?

Valid June 6 – June 16 from the Climate Forecast System, total precipitation percentage of normal. Notice the blue bullseyes over most of the West representing 150-400% of normal precipitation.

A return to “normal” precipitation occurs after June 15. It’s most pronounced June 20-30. Notice the blue bullseyes are largely gone.