The Monsoon moisture that has provided beneficial rains from Southern Utah southward through Arizona into northwestern Mexico much of July finally arrived into western Wyoming the last week of the month. The showers and locally heavy thunderstorms brought to an end the exceptionally long dry spell that began the last week of May for the Star Valley area.
Following are the rainfall totals in and around Star Valley for the month of July, which primarily occurred toward the end of the month.
2.95 2 miles west of Nordic Ranch
2.89 3 miles south southeast of Bedford
2.84 6 miles south of Alpine
2.35 2 miles south of Bedford
2.28 1.5 miles south southeast of Thayne
2.10 Cottonwood SNOTEL
1.94 5 miles south southeast Smoot
1.77 Star Valley Ranch
1.30 Willow Creek SNOTEL
1.22 Thayne ES
1.11 Etna ES
1.04 Crow Creek southwest of Afton
1.01 Alpine Airport
1.00 Salt River Summit SNOTEL
.98 Hams Fork 25 miles north northwest of Kemmerer.
The graphic for the western states of July 2021 clearly shows the impact of the monsoon moisture across the southwest
Record setting rainfall was experienced across many areas , particularly Arizona. Monthly totals exceeded 8 inches including the Tucson area.
Primarily the western border counties of Wyoming benefited from the end of the month storms.
Lincoln and Uinta Counties appeared to benefit the most from storm activity with lesser totals in parts of Yellowstone and Grand Teton National Parks.
However precipitation totals for the past 12 months remain well below normal across much of the western states.