Is it normal that i am avoided by everyone i meet?

you actually care what other people think of you? if so why?

It could be how you emotionally present yourself. Sometimes when I talk to new people, I suppose I come of as shy and uncomfortable with my surroundings. Sometimes, I'm sure I've come off as a uptight bitch, but it can't really be helped. Analyse how you act around others and change your approach if needed. See if that helps if not they might just view you as a outcast.

Really interesting topic this one . We need a video of you around people to nail it , could be so may reasons.
I can make people steer clear of me with just a look or a tone,a stance.I'm a very loose person by nature but I'm also moody so it depends on the day and I've wound up noticing all this stuff over time. My face seems to tell my mood and especially if I'm in a shit people steer well a round me with a bit of an oh shit watch out for this dude look. My bad moods show even if I'm faking it.
I'm guessing with you that your not a very relaxed /loose looking/manner person tho, that one does it every time.
Another huge thing they pick up to is if your observative. People really notice that and get a bit worried that you'll see straight through them.

I don't know. Have you ever done anything that would give you a bad reputation? Maybe your just more attuned to the haters, so you notice them more. They could just have a dislike of freshman, but I'm sure if you try to strike up a conversation with people, at least one of them will answer back non-avoidingly. Who knows, it could all just be in your head.

If you approach people in a shy reserved manner, they will act more cautious around you. I have always been a very loud and upfront individual and have no problem making new acquaintances my "best friend". But my best friend is just like me only much shyer and quieter, and he finds it much harder to make friends. It is all about you confidence and the attitude you have about you. There will always be jerks and people that distance themselves for dumb reasons, but on the whole, people enjoy talking to warm, confident people.

If there's genuinely nothing wrong with you then just be careful how you greet people. This may be strange but if you just say hi and walk on then everything should be fine. However, I have a friend who is 'over-friendly' with everyone and comes across as needy. It's as if she needs to befriend them for some reason, and in my opinion she is so sycophantic she's belittling herself.

Find a way to video your interactions, it is quite possible that your body language is putting people off.

Body language is so important in communication and is largely responsible for that "gut feeling" people have about other people.

Also it may be that you're uncomfortable and people can read that and if makes then uncomfortable as well.

They might be jealous or see you as a threat, people will only deliberately try and bring down others that are above them, perhaps there is nothing wrong with you, ding let it get to you, those specific people are not worth your time and they're acting weird. Who wants to be around that?

They may have trouble getting a grip on you, i've found that people are reserved in conversation often when they can't read the other person properly. It unnerves some.
Try Checking out the way you talk and your facial expressions. It might be that simple, i had that problem because im always thinking about something else when im talking to others. People are sensitive and pick up on it.

People outcast others for many reasons. A lot of those reasons are incredibly shallow. Some reasons are okay, but that's not likely in high school. In order to best answer your question, you'd have to explain your character, your appearance, your possible mental ailments, any decisions you've made in the past that weren't approved of, etc. There are plenty of stupid reasons for a group to shun individuals. Few, if any, are good

Either case, you shouldn't bother with them. If they're rejecting you, they aren't a friend you'd want to keep. Be grateful in that sense. Of course, I could see why it would still upset you.