I doubt it. Even if it is down and laying on the ground, it can suck up moisture. I have found that six months is enough for pine to season once it is split, but that is for my outdoor fire pit. I will once in a while throw a piece of pine in my wood burning stove to get it going good, but for the most part I stick to hard woods. I am fortunate that I have a near endless supply of hardwood. My reason for staying away from pine is you have to keep so much more of it on hand because it exhausts itself quicker.
At the end of the day, you should burn whatever is readily available and easily obtainable. All wood will burn and provide heat if it is seasoned correctly.
I would suggest investing in a moisture meter. You can use it for many different purposes, but I use it solely for checking my wood. Some will say you can tell by looking at it, which I guess is true, but I prefer to know. This works great. Anything under 20% moisture is considered seasoned, but I like to go below 15%.
I am hoping this cold spell breaks soon, I am really going through the wood. It is going to be a long spring replenishing the supply