What time of the year does the conversation take place?

M: We’re going to the pond to skate and sled. Do you want to come with us?
W: Thanks, but it’s below zero, so I’ll stay near the fire.

W: What’s your favorite sport, Mike?
M: Well, I like golf a lot but I guess I like volleyball better.
W: Do you play much volleyball?
M: Yes, quite a lot. How about a game sometime?
W: Sorry, I don’t play any sports but I watch all kinds of games.