Weather Data - Yellowtail Dam Area

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Yellowtail Dam Area
The area beyond Yellowtail Dam gets enough precipitation for mixed grasslands to thrive.

NPS

The Yellowtail Dam sits at the mouth of Bighorn Canyon, approximately a mile from Fort Smith, Montana. The precipitation around this area is 15 – 18 inches a year.

Rain here is more likely to be significant in May and June. Just downriver from the dam begin the rolling grasslands which stretch across the horizon for miles on end. This landscape is more tolerant of summer grazing and growing wheat because of the rainfall pattern.

Average Temperatures at the Yellowtail Dam, Montana

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
High (F) 40.2 46.1 54.0 63.4 72.7 82.7 91.0 91.0 79.2 66.1 49.0 41.7
Low (F) 17.7 21.9 28.0 36.2 44.5 52.4 57.2 56.1 47.2 38.5 27.7 20.5

Average Precipitation in inches at Yellowtail Dam

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0.9 0.7 1.4 2.1 3.1 2.2 1.5 1.0 1.8 1.9 1.0 0.9



Last updated: March 14, 2019

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Contact Info

Mailing Address:

Bighorn Canyon National Recreation Area South District Visitor Center
20 US Hwy 14A

Lovell, WY 82431

Phone:

307 548-5406
(307) 548-5406 is the South District in Lovell, WY. (406) 666-9961 is the North District in Fort Smith, MT.

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