Challenging, for sure. Being used to the pee pad but having to learn to now go outside - in this weather. Good illustration of why it's probably better to just skip the pee pad.
I may not be the best resource here as I don't use them, but the idea will be to move the pee pad outside and eventually wean her off of it. You could just skip it altogether, but I'd think that would be very confusing to the dog if she's used to them and you may be dealing with "accidents" a lot unless you're pretty rigid (in routine) with training.
I will look around to see if I can find you any "how to" resources (as far as weaning from pee pad goes).
Some other basic principles. The dog's bladder right now is about the size of a small walnut, if that. Plus she's still very young, a baby really. So basically she can't hold it very long right now, but she will be able to hold it longer as she gets older. Also, no yelling and scolding, which will only serve to frighten an already confused dog. The idea is to "teach". Always stay calm. If there are accidents, chalk it up to being your own fault right now. Keep her contained in an area that would be ok if she did have an accident, like a kitchen. No rugs at this point, unless you are right there with her, but even then, if she pees on the rug, you've just created another big problem to deal with. She needs to get the idea there are certain places for her to "go", and that other areas are off limits (for "going"). This will take a while. Always set her up for success.
Try this. Are you using a crate? If so, tire her out, put her in crate for nap for a couple of hours, then take her directly outside. Bring along the pad, and get her to go on it. Praise when she does. Repeat. Keep it up every couple to few hours. (Yes, I know it's a LOT, but remember you're teaching and that she's still a baby. It WILL get better!) Make sure the crate isn't too big (where she'll pee in the corner) and make sure she doesn't stay in so long that she can't hold it anymore. Also: DO NOT PUT THE PADS OUT IN THE HOUSE AGAIN. Only bring them outside. After a few days of her going outside, she should begin to get the "idea". Praise, praise, praise. Keep your relationship positive. It's a lot of work (like having a baby initially) but it gets better a lot faster than it does with a human baby, thankfully. But your hard efforts at the beginning will pay off in the long run if you do it right.
Good luck. PS we need pictures!
ETA a couple of things to add. When bringing pee pad outside, bring one that's soiled to start, so she gets the idea. Also, saying a phrase like "Go pee" every time she goes pee outside will be helpful towards getting her to go on command later on.
A couple of articles:
http://en.allexperts.com/q/Dog-Training-3333/wee-wee-pad.htm
http://www.suite101.com/content/how-to-house-train-a-puppy-a285065