I am planning a trip to Washington DC and I am wondering what the best time to visit would be. I am looking for a time when I can experience the city without the crowds and when the weather is most pleasant. I would like to enjoy all the sights and attractions without having to worry about the weather or the number of people. I am hoping to find a time when I can take in the history and culture of the city without having to worry about the hustle and bustle of the city. Any advice would be greatly appreciated.