Western Hognoses are great snakes....I'll try and give you as much info as possible, lol.
1. Females average around 24 inches, males 16-20.
2. They eat rodents.
3. Temps/humdity are exactly like a Cornsnake.
4. Varies by age/size.
5. They have great temperaments usually but some will hiss and puff up, but they are 99% bluff lol.
About their "venom"......they do have Duvernoy's Glands but they are not connected to their enlarged rear teeth......they do however have a slightly toxic saliva that has anti coagulants in it. Unless you are allergic, you are unlikely to have a bad reaction....plus they won't bite you anyway lol. I've been bitten and all it did was bleed alot lol.