No. Boulder has an excellent public transportation system, and you will receive a bus pass that will enable you to ride for free in the Boulder and Denver metro area. You can also rent a bicycle for a week, or for the entire summer; campus and Boulder are very easy to navigate by bicycle, and with parking restrictions and prices, it's far more efficient as well. Bike paths are plentiful. Just know that rental bicycles come with locks, but not helmets. Be sure to bring a helmet!
If you choose to bring a car, you will have to purchase a campus parking permit for the 10 weeks at your own expense.