I'm a native Texan. I tried to go to that big crater on Maui (forgot the name....) in 1986.
We got there and the roads were blocked due to snow. I was stunned.
They said it was the first snowfall that stuck, in many years.
Figures. A Texan has to go to Hawaii for snow......
Haleakala. Mauna Kea and Mauna Loa are usually the only ones to get snow. You were "fortunate." ;-)