I made mine for a full bed with drape. I chained 240 + 1. And I am planning on 366 rows of single crochet to account for leap year. I am alternating every other month with SC one month, and SCFLO/SCBLO across the row the next month. I am using sequin thread for family birthdays and anniversaries. Highs for spring and summer equinox, lows for fall and winter equinox. I used www.wunderground.com for my temperatures.

Tip: I used Mikey from the Crochet Crowd’s fantastically awesome online afghan size calculator to figure out how many stitches to fit my full bed and what my gauge is. For me, a single crochet with worsted weight yarn is about 1/4 inch.