You know you're a COLDWATER diver when....

[Subcooled]

...when +10C/+50F water is suitable for a nice swim/snorkeling in swimming trunks

(yes, I had to do it and to freedive for the lost fins for the snorkeling ladies in drysuits)

 

[wetb4igetinthewater]

How about a PNW diver...
When you stay drier diving than you do getting changed for it.

That's where my username came from.

 

[drspore]

I'm pretty sure you win.

 

[TMHeimer]

When you're on your first ever dive boat (FL panhandle in March), see an instructor doing an AOW class in a drysuit and first ask "What is that"? Next ask "why"? It's f%^*ing FLORIDA!

 

[g1138]

To clarify, I'm a recent transplant:
When you see fellow South Carolinians doing their annual "polar" plunge in 54F waters and you say: "Aww that's cute."

But it's 40F air temp outside, they say.
"Aww you guys are just adorable!"

 

[Hickdive]

When you're backing into the water for a shore dive and keep apologising, thinking you're bumping your buddy, when actually you're just breaking the ice with your cylinder.

 

[AfterDark]

When you can actually do things wear 5mm gloves.

 

[olphart]

When you have to pry your frozen weights and fins off the damn table to pack up your gear after the dive! I know this from my dive yesterday.

 

[Storker]

When you can actually do things wear 5mm gloves.

Ever tried 6mm or 7mm 3-fingers?

EDIT: I'd say "When switching to 5mm gloves gives you greatly improved dexterity"

 

[Hickdive]

Ever tried 6mm or 7mm 3-fingers?

Yes, and they have one tremendous disadvantage; you cannot make rude gestures at your buddy.