Yes, the temperature really matters! Drinking cold water not only burns more calories as your body processes it, but can enhance your performance as well. Studies show exercisers choosing cold water can workout longer than those drinking warm. This is likely because cold drinks lower the body temperature, decreasing one's perceived exertion. A quick way to grab a cold drink heading out for your workout is to freeze half a bottle ahead of time and then grab it from the freezer and top it off.
Be Smart about Sports Drinks
Experts typically say that sports drinks for athletes are not necessary for workouts less than an hour. That doesn't mean they can't be of benefit for a different population when it comes to beginners who are having a tough time getting through the workout. It's all about the intensity. If you feel like you need a little extra energy boost, try a little sports drink right before and even after if you need help recovering. What I like to do is just put a little bit in some water. Try different dilutions to see what works for you, I am just fine with mostly water. Don't be concerned about a few extra carbs/calories...your abillity to have a better, more effective workout will pay off in the calorie department.
Caution: MOST sports drinks are junk! I am not a fan of Gatorade, Powerade, any of the main brands. Your body can do without the artificial colors, flavors, sweeteners, and processed sugars. Try an organic brand instead. I like Recharge by R.W. Knudsen, which comes in similar flavors as the main brands,and costs even less if you buy it in bulk on Amazon.
I also love Y Muscle Water. That's the funny-shaped bottle people ask me about some times. :)