The phrase "hectic month" means a very busy and chaotic period of time.
Sentences with «hectic month»
After a particularly hectic month, I didn't drive for about 4 weeks and the car's battery had died the next time I came to drive it. (mechanics.stackexchange.com)
I also work in retail and December is the most hectic month of the year. (relevantmagazine.com)
January is a very hectic month for the auto industry. (cnet.com)