Not content to just make the ritual a family memory, Rochelle began to photograph each day's outfit and post on Facebook for their extended family and friends to see.
The Facebook postings grew into a blog, appropriately named"Wave At The Bus," that Rochelle updated each day with commentary and behind-the-scenes peeks of how the day's outfit came together.
Attention from the blog, and the outrageous costumes, has turned Dale, a stay-at-home dad, into a local celebrity in their suburban town just outside Salt Lake City.
But they have also made the father of three, and his antics, into an online phenomenon.
The family's blog has received more than 2 million page views, includes a Twitter feed for comments and now also features a donation tab where followers can donate money to what the family is calling "Rain's College/Therapy Fund."
The blog's behind-the-scenes tidbits tell readers that Dale relied on old family Halloween costumes - the family coordinates their Halloween costumes around a theme each year - and borrowed outfits from neighbors to keep expenses for the yearlong costume extravaganza under $50 in all for costumes and props.
"Anybody can walk around their house, find things in the garage or the basement, and put things together," Dale said on "GMA," of his cost-saving approach.
"When I got desperate I put out a call to neighbors," he said, "and, let me tell you, you never know what your neighbors have."
The tidbits also reveal the highly-detailed, rigid schedule Dale must follow in order to pull of the stunt each day.
As his son leaves to catch the bus at 7:10 a.m., Dale is dressed in just the outlines of his costume to maintain the surprise. He then has just four minutes, before the bus pulls away, to transform himself into the day's character, making in onto the street just in time to send Rain off with a big, costumed wave.
"He's the one we do it for, out of love," Dale said of Rain. "He'll have this around when we're not here anymore."
After appearances as the scarecrow from the "Wizard of Oz," a San Diego Chargers football player and Anakin Skywalker from "Star Wars," Dale chose a "peg leg" pirate costume for his final send-off to Rain on the last day of school.
The pirate costume was a favorite of Dale's that he had reinvented throughout the year, as well as a nod to his own, real-life prosthetic leg, but it will likely be the last.
"When you have a built-in costume," said Dale, pointing to his prosthetic, "you can always go back to one, steadfast costume."
"I wanted to end as a pirate," he said. "That's how the kids see me, as a pirate."
And his dad's fun spirit, whether as a pirate or just-plain-old dad, is something Rain says the world could use more of.
"In the end, it was just fun," Rain said on "GMA." "I was just laughing on the bus the whole way."