Can cold weather change Phal bloom color?

[Lilly B]

I have had this Phal (PHal. Mount "NC" x Phal. Luchia Pink "CM" on tag) for 7 years and it has always been a pale pink. This year she is pale pink but with what looks like a Purple Splash effect. We have had cold weather early in the season here in Florida and I was wondering if this could cause the flowers to have different coloring from what it has always had before. Has anyone else ever experienced this? The coloring in the throat is also a much stronger red than it has been in the past. If the weather is back to normal next year, will her color also go back to what it was?