Dirty spring in San Francisco
The weather is changing very fast. I think it's the global warming.
When I was a child, I used to like walking to school on those warm May mornings; I really miss them. For the last few years, spring has been rainy, cold and dirty. It makes me sad and maybe I need a life somewhere else. Sometimes, I feel that I would've liked to have been born in San Francisco. I have never been there, but some unknown feelings pull me there.
If you live in San Francisco, you must know - you are lucky man. Millions of people want to live there. Millions of people want to speak English, and maybe, millions of people want to be in your life.
Months of the year are capitalised - May, June ,etc.
San Francisco is not hyphenated - San-Francisco
Seasons of the year are NOT capitalised - spring, summer