Research Help Needed!

I posted this on the NaNoWriMo forums as well (here), but…

I’ve decided to set my novel in New Hampshire despite never having set foot in the state. I also live in California and don’t really know what real weather is. Please help with the following!

  • What’s the weather like in July, August, October, November, and December?
  • What baseball team(s) do people follow?
  • What styles are most of the houses?
  • What is the LGBT scene/atmosphere  like?
  • Slang people use
  • Anything else I should probably know