Are they lighting them yet?
I actually think that putting them up now, when the weather is warmer, is better than standing out there in late November/early December when it's freezing, and you have to wear gloves and you can't get the lights untangled and it's windy, and they are blowing all over the place.
I am going to try (probably unsuccesfully!) to get my DH to put them up now on the bushes, and then when it comes time to light them in early December, all you have to do is plug them in!