That seems like a really long spell without rain. Everyone is getting something wierd and different weather-wise this year it seems. It's never dry here but, we broke the records in October.
When it comes to garlic, I guess I do most of my worrying before it goes in the ground. Then I shrug it off for the winter - cause what's done is done, and now it's come what may. Then I start to worry again in spring until the shoots are up, and again after the scapes are done, about when to take it out of the ground.
At harvest inspect for damages, assess any troubles I can worry about
, and the whole cycle of worry about planting starts again.
I suppose eventually I may worry less.
Ultimately I think garlic is more at risk if there's too much moisture than it is from too little.
But that perspective may be colored by our tendency to be wet!