Camera dropped in snow

you need to replace the card or dry it out samewhere warm

Never, ever keep/expose the LCD display to direct sun light.
If you have done it, then you better get a new display.

Don't try to turn it on. After drying out the card and battery compartment as best you can, bury the camera in a bowl of dry rice for one week. Then, try to turn it on with your fingers crossed. I'm assuming the water was clear and not saltwater. You still may have a problem with water spots on the inside lens elements if any water got inside them.

Take the battery out, dry the phone, battery, SIM and/or memory card with paper towels as much as possible. Take all of the pieces and wrap them in a single paper towel loosely. Drop this in a ziplock bag and fill it with baking soda, then zip it up. Let it sit for 2 - 3 days.

The worst thing to do with a phone that has been in contact with water is to run a current through it.

Solution: The most important thing to remember if your digital camera should be partially or fully submerged in water is to act quickly. Once your camera is out of the water, avoid the urge to turn the camera on to see if it works and instead remove the batteries immediately to prevent shorting any of the internal electrical components. Remove your memory card also, otherwise you may lose the pictures you’ve already taken and saved to the card.

Leaving the battery and memory card compartments open, dab away any excess water with a dry cloth or paper towel. Then, use a household hairdryer set to the lowest heat or no-heat setting and blow dry the camera for 10 to 15 minutes.

Although the outside of the camera may be dry, it’s what’s on the inside that counts. If any moisture is left within the camera, it may, over time, grow mold, which can interfere with the camera’s operation. If the camera was dropped into a chlorinated swimming pool or a saltwater lake, your camera’s components may suffer corrosion over time, and your camera will eventually stop working.

To help draw moisture out of the camera, pack your camera in a bowl filled with silica gel (the packets of small transparent beads often found in various foods, electronics, and clothing packages) or uncooked rice. Both materials can absorb and hold excess water that may be left in your camera. Leave your camera to dry for at least 24 to 48 hours. Once you are certain that your camera has completely dried out, insert fully charged batteries and press the Power button. With any luck, your camera will function properly. If not, you may try contacting a camera repair company to ask advice or inquire about repair options.

you did good and removing the battery and memory card was also a good idea....leave the unit for a couple days the way it is...check later to see if there is any white or green residue(powder) or rust looking areas around the memory card and battery location...if it seems clear then it should be fine, if you see any type residue, then water got into the unit and is starting to corrode it...which means 2 things...either buy a new one or you can still try to salvage this one by having it opened and cleaned out with acetone and dried up completely..then for sure it will be good to go..but first try what I suggested

Was the camera on at the time it fell in the water?

firstly don't use the card.
you will need a card reader for your computer
There are many programs that can help you recover faulty formatted or corrupt memory cards. Do a search on google and try a few as some are better than others and some work better in certain situations than others.
searches to try
memory card recovery
memory card repair
Corrupted Memory Card

I wish you the very best of luck..
If I can be of further help drop me a line

Try letting it drop about 4 tto 6 inches on a hard service covered by a paper towel. Don't let it land on lens of course. You can remove the mem card. It has 13Meg of internal.