Where and When do you do your BEST writing?

Where I'm from, many of us complain that there is no snow in December, and then, when it finally hits in January (and oh, does it hit) we complain that there is too much snow--not a happy medium when it comes to Chicago weather! The above picture displays exactly what Chicago looks like right now, and yes, that's a Chicago dog! :)

It got me to thinking about our writing environment. In other words, in what physical setting do we write best? I do love to write when the neighborhood is encased in snow and I'm all warm and cozy in my house, but I'd have to say fall is my favorite season! There is nothing better than writing on a cool fall day, when the sky is overcast, and all the leaves are whipping around the streets, and Halloween is right around the corner! BOO!

What about you? Where and when are you at your writing best?