Question about dates / turns

Is it possible to divide each year into four seasons?

If so what do I need to alter in the rules / game settings?

I want to set up a scenario that lasts 23 years, but 23 turns would be too short. 92 turns would be perfect!

I think if you put -3 in the Turn Increment in the cheat menu, each turn will be incremented by 3 months, i.e. Mar to Jun to Sept to Dec.

If I read my designers guide correctly its 1 = yearly, 2 = biannually, -1 = monthly, -2 = bimonthly, -6 = biannually.

Cheat menu -> scenario parameters -> turn year increment -> input negative number.
Civ 2 behaves erratically in this regard and seems to only accept 1/12 increments when I put in -1. So you can get one month per turn, although technically you should be able to set 3 months per turn which would effectively give you seasons that you desire.
As with everything - experiment. I'm not certain if current year (turns elapsed) doesn't have something to do with turn increment.

Great, thanks guys. I will give it a try.