Welcome to the forum, Stevin!
You can root year-round if you have the facilities (a warm place with adequate natural or artificial lighting) to keep them growing. If you don't, then wait until Spring. Cuttings are normally taken just before breaking dormancy to minimize indoor growing time. You can start your cuttings around the time you would start your melon seeds indoors. 4-6 weeks should be good. If you have to take cuttings sooner, you can store them in the crisper after adding a barely damp paper towel and store them in a freezer bag. No other treatment is needed, but some folks think fungicides or bleach help them. Good luck!