Bluebird Day 

A bright, clear, sunny day after a night of snowfall.

Nothing is prettier than a January bluebird day in Seattle.

Bluebird Day by Emersonia December 15, 2011

Bluebird Day 

The holy grail of snowboard days. Not a single cloud in the sky. Just pure, blazing sunshine and crispy, untouched lines waiting to be shredded.

Example: "Bro, did you see the forecast? It’s gonna be a total bluebird day tomorrow—get ready to absolutely send!"

Bluebird Day by SunnySNOWWW February 4, 2025

blue-bird day 

An expression often used by out-of-date ski bums and boarders describing an otherwise beautiful, blue and sunny day. The expression is entirely unrelated to spring or to bluebirds.

Look at the sun! It's a blue-bird day!

blue-bird day by Pretentious Ski Fiend March 15, 2011