How I wish that was still true. We've had 3 seasons each year for the past four years. I'm fostering 5 kittens (3 orange a callie and a tortie, ready March 17 if you want to take a trip north 3 or so hours LOL) right now. We have a pregnant mama cat due any second, and another that has a week or so to go and yet another mama and babies set we didn't have a foster home for, so another group took her in. We have kittens year round and it doesn't get much colder than upstate NY.
Our kittens will have been spayed and neutered, up to date on all but their rabies vaccs, which most counties offer for free or $1, they will come flea free, earmite free, wormfree, and we even make sure their nails are nice and short. We try our best to have them trained to use a scratching post, because our contract states no declawing. You also promise to keep them indoors. They were already found outside starving in the snow, so we want to make sure they remain nice and warm and safe. Check with rescue groups in your area. Our adoption fee is just $80, and the kittens come with about $250 already put into them..so it's a great savings.
Since the begining of the year just our group has had 4 s/n clinics and we have s/n 90 cats and kittens. There are five groups just in our immediate area running clinics, so about 450 cats fixed, just since January, in our county. So many kittens being born, it just doesn't seem to end, no matter what the weather. It's not like it used to be..those darn gals just keep getting pregnant.
I agree with those that said get two if possible. Bored kittens can be naughty kittens. You want them to have company and a play and sleep mate, if you are going to be gone most of the day.