I know a little about New York City...i use to live like 5 min from it back in '89-'92.
1) What are the people like in New York?
The people are of different cultures, different walks of life. Its called "the city that dont sleep" because everyone is usually in a "rush" or busy type of mode. Getting to where they need to get. Doing what they gotta do.
2) What is the climate there?
Again, since I lived in North Jersey for 13.8 years of my life, its basically the same as where I lived. The climate is average. In the summer it could get to 100 degrees and in the winter it could be zero degrees.
3) What kind of people live there?
Every kind. Spanish, Italians, Americans, Chinese, Japanese, blacks, whites, jew..etc. Like a melting pot.
4) What celebrations happen there like festivals...?
Anything on an american calendar. Depends what religion you are. Thanksgiving and Christmas and New Years are the most popular. Times Square is the place to be for New Years Eve. On Thanksgiving theres a huge parade every year thats called the Macys Thanksgiving Day parade.
Hope this helps.