Where in Utah are you going to be living? I live about 80 miles north of Salt Lake City very near the Idaho border and it gets pretty cold here. Don't bother buying a coat in Louisiana as I doubt that they will have what you need. When you get to Utah find an IFA store and buy a Carhart coat (the parka type with the quilted lining). Then get a silk scarf (some places call them a wild rag). You wrap it once around your neck and then tie it or use a slide to snup it up and it will keep you much warmer than just the coat. For your legs I would suggest a good pair of shotgun style chaps. These will keep the wind off your legs and give you a little protection in the event you become unhorsed. You'll have to experiment with gloves as everybody has thier own preference. I like unlined buckskin gloves mostly but I'm tough. I also usually just wear a felt hat. Good luck.
I'm here in CO where it gets hot in the summer and cold in the winter!
It is going to be all of 28 degrees today, and 16 overnight.
Under armor is my best pal, along with thinsulate gloves, and hot bran mash for my boy to keep his water intake up! And of course I blanket him...spoiled thing!
MI here and it gets cold and snowy in the winter time.
Plain old long johns work great along with layering. A good pair of winter riding boots and the heavy winter riding gloves. I've seen people here ride in full carharrt bibs or suites with a scarf wrapped around their head.
I also use a Quarter Sheet to help keep my upper legs warm too.
I'm also a big fan of those Hot Hands heat packs that SMrobs mentioned. They make them for inside your shoes as well.
When it's cold down here (20F), the ladies that I ride with love the ones for your boots. I just wear heavy socks and wiggle my toes to keep blood flowing, but that is the part of me that seems to get the coldest on long rides.
I am about 2 hours from Utah, up in Wyoming at 7000 feet. It gets very cold and I was going to say the same thing as Kevin. IFA stores will be your friend. Wait till you get here, then go and buy what you need. If you have not lived here, then what some folks say is a winter coat is more for lounging around in the ski lodge, pretty, puffy and worthless outside. Lol.
I bought "longjohns" at Cabela's in Utah that are fleece type. They are soft and warm and so comfortable for riding. I like lined gloves, like to keep my hands warm, I'm not tough like Kevin... I do ride with a wool knit cap on my head, like to keep my ears warm. Kevin is just too tough for me about a hat too. Ugh, my ears would freeze.
You also want good warm boots for when you are not riding. Again, IFA or Cabela's will be your friend.
Good luck and enjoy.. Right now outside it is 10 degrees F, snow on the ground. Time to bundle up and go feed the horses.
I agree with the posters that said to wait for your purchases until you move. Also don't get boots that are too snug. You need room for at least two pairs of socks (one thin and one thick) and then some "breathing" room. Same goes for gloves -- not tight ones. I can't use gloves: my hands get too cold, so I buy lots of mitts.
Watch for clothes that are too slippery -- nylon snow pants and rain pants are great for working in the fields, but not for riding; knitted mitts and gloves won't allow you to grip your reins properly.
Also remember that wool is the warmest thing going when it gets wet, but the most important thing is to stay dry. That includes not just snow and rain, but your own body moisture.
You will LOVE the snow. It's beautiful and peaceful. Like walking through an enchanted fairy land.
Oh, what I go for as far as ear covering is these. http://www.earmuffshop.com/180s/
I have to have my ears covered anytime it is even slightly cold and windy and these allow me to still wear my felt hat too. They are the kind that wrap around the back of your head instead of over the top.
I live in western Montana. I'll ride even when it's below zero as well. I wear long johns. Probably two pairs of bottoms. Then I wear a long john shirt, t-shirt and hoodie sweat shirt with a jacket. For gloves I have a pair that are insulated. Not too thick or big just enough to get by and be able to feel. I don't use anything for my ears. I wear a hat all the time, baseball cap.
My feet are my only concern. I wear two pairs of socks. One pair being wool. Usually once I've been moving a bit I can lose the jacket.