What quality clothes needed for USA weather.?

On the east coast by Maryland, the weather can be very unpredictable. Same with Washington... It is more on the west coast so it may be warmer than the east coast, but honestly I would bring a little bit of everything. There is really no way to plan what type of weather those states will have, it changes too much. Right now I am on the east coast and the weather has been fluctuating from slightly warm to sometimes very cold.

Firstly as a heads up, the USA is HUGE and has a wide variety of weather, and you will be on both opposite sides of the country. In that case I would bring a balance of things. But you will not need shorts. Bring your favorite pants, a few t shirts, a nice button up for dinners etc, a sweater/sweatshirt, a light jacket, an umbrella, and other necessities. Basically it wont be winter so no large jacket involved, and no shorts and flip flops either. Besides that bring what you feel most comfortable and confident in!

First, you might want to check website http://www.weather.com/ and check the cities around Washington DC and Maryland for weather forecasts for the next two weeks then pack clothes appropriate for expected weather conditions and activities you plan on doing for the time that you are visiting.