Weather & Altitude

Salt Lake City/Park City

Typical daytime highs in May: Mid-60s to low-70s °F

Evening temperatures: Cool; layered clothing is recommended

Altitude: Park City elevation is approximately 6,500–8,000 feet. To support comfort and well-being at altitude, attendees are encouraged to:

• Stay well hydrated before and during their stay

• Allow time to acclimate before strenuous physical activity

• Use sun protection when outdoors due to increased UV exposure

Suggested attire at The St. Regis:  Business Casual

Kemmerer, WY

Typical daytime highs in May: Low-60s °F

Site visit required attire:  All visitors to the TerraPower construction site are required to wear long pants and long sleeves (a long-sleeve shirt or jacket) while on site. Closed-toed shoes are required

Due to the high elevation, temperatures and wind conditions can vary significantly between town and the job site. It may also be windy and dusty, so we encourage dressing for comfort. Casual attire is perfectly appropriate (e.g., jeans with a button-up shirt or blouse).