From Toronto in mid September to Quebec City in late September, hypothetically you really could encounter everything from shorts-and-sunscreen weather to boots-and-jacket weather.
The driving distance between Denver, CO and Salt Lake City, UT is 536 miles. The driving time would be approximately 8 hours 30 minutes if driving non-stop in good conditions.
Driving distance from Salt Lake City, UT to Lava Hot Springs, ID. The total driving distance from Salt Lake City, UT to Lava Hot Springs, ID is 149 miles or 240 kilometers. Your trip begins in Salt Lake City, Utah. It ends in Lava Hot Springs, Idaho.