Haley Mary Artzab:
She is not someone of great public fame, but she is certainly an online presence: she is a comedian and songwriter from Regina, Saskatchewan, Canada, who works on original songs with a friend (an Orbison/Presley tribute artist).
Furthermore, her profiles reveal that she is also active as a poet: on sites like AllPoetry and Storywrite, she describes herself as “Philosopher Poetess/Singer/Songwriter/Comedian”, with a spiritual identity she describes as agnostic, polytheistic-pantheistic, and interested in numerous mystical traditions (Jewish, Christian, Buddhist, Taoist, pagan, Hindu, Egyptian, Maya, and Shamanistic). She is proud of her Jewish heritage on her father’s side. She also participated in open mic nights: poetry nights from May 2016 to March 2018, and stand-up comedy from March 2018 to March 2020, until the first coronavirus lockdown. During the pandemic, she participated in Zoom meetings with her Creative City Centre Regina Word Up group, and the open mic nights resumed in the fall of 2021 at a new location (The Artesian).
She appears to be primarily a local, online-active creative (comedy, poetry, music) without broad public recognition outside her immediate circles and online platforms.

Thinking back to when it was warm outside. Oh, why couldn’t Christmas be in July?

This phrase is a ‘nostalgic, slightly humorous wish’:
You look back/think of warm weather ☀️ and wonder why ‘Christmas isn’t possible in July’ 🎄—so “Christmas atmosphere” in the summer instead of only in the cold winter.
🌍 “Christmas in July”:
The wordplay relies on the well-known trope “Christmas in July”:
– marketing/parties and a “Christmas in the summer” idea
– often used for a lighthearted, comical variation on Christmas traditions
🧾 Author:
Regarding this ‘exact formulation’, based on what you have already shared, I cannot reliably determine:
– whether it is an ‘original rule’ by Haley Mary Artzab,
– or whether it is a ‘modern quoted/converted variant’ that was later attributed to her.