Not sure that is a good guide. A bank will raise rates when they find they need more reserves to make the loans against and they aren't attracting enough money at their present rates. But right now, there are lots of people heading towards CD's. Perhaps a stampede. This tends to push rates down.
I watch the Vanguard brokered CD's and in the last week, the shorter CD maturity rates have gone down a little, and the longer term CD's (2 years and out) have stayed steady.
I'm interested in up to one year, but right now the Vanguard money market is paying 2.25% p.a. (Prime MM a little more) So I'm waiting until they notch up and buying another one.
Dave