Recent inflation data was not surprising.
Inflation bumps along the way aren't particularly surprising.
Don't want to end up with a too-strong, or too-weak policy response.
Need to be confident that inflation is on the way to target before acting. 
Can't just look at published information, that's backwards-looking.
The economy growing at a solid rate, the labor market is still strong, and inflation is above target.
The worst thing to do is act urgently when urgency isn't necessary.