Hiya Kim!
Welcome to planDisney! I'm sorry it sounds like your plans have changed, canceling a trip is never fun.
Disneyland Theme Park Tickets are non-refundable, but you are welcome to
modify your theme park reservation as long as your ticket has not expired. You can also usually upgrade a ticket to one that is a higher value, or apply the value of a wholly unused, expired Disneyland Resort theme park ticket to the purchase of a new ticket. So hopefully you can find a new day to visit!
If you need help upgrading your ticket or have questions about the expiration I recommend calling the
"Tickets" phone number to speak with a Cast Member. They will do their best to help you find a good solution.
The Holidays at the Disneyland Resort really are fantastic, so if you can manage a visit I would highly recommend it! Even living in a place where we often get snow, I still love seeing soft "flakes" falling on Main Street, U.S.A. each evening. There's something extra magical about enjoying snow without being cold! I hope you can get to the parks soon, Kim!
Keep moving forward!
Amanda