You are showing how "green" you are to horse ownership. I have kept horses since 1985. There are years when you can be very picky about the hay your buy. There are years like 2012, when horse owners would take WHATEVER they could GET, and say, "thank you."
I would talk to the BO and find out about your hay situation. You should have read Dreamcatcher's 2012 post. She took the weather advice from the Farmer's Almanac and bought her 2012-2013 hay in May of 2012. But the Fall of 2012, hay growers in NE didn't have much hay left to sell bc of the severe drought.