When to start bringing orchids inside

[angeleyedcat]

I've posted this as a group since I only have 1 of each but possibly I should post this question in each orchids section?

I have the group below of orchids outside for the first summer and am wondering when should I bring them in since it will be getting cooler very soon here? My nights are low 50's to low 60's for most of the summer including august. I've read that most of them (except for Little Black Sambo which is hardier?) generally need to come in before it goes below 55 degrees. Well, they've all been in the low 50's many times, even this month of august, and look pretty happy. My question is how low should they actually go? I assume the phals and possibly others will go in and out a bit.

Yes, most of these are from box stores, phals are clearance and doing well, the variety is so I can learn what I can grow and what likes my conditions. If all goes well by next spring I'll take the plunge and order online what works. So far I'm very impressed with the toughness of orchids, now is the challenge to get them to bloom for me
Thanks so much again for all your help!

Brassolaeliocattleya Ann Cleo Stars and Stripes
Brassocattleya Little Marmaid
Onc. Ampliatum
Oncidium Sharry Baby
Wils. Pacific Panache “Keenan”
Encyclia
paph hsinying maru x incantation
Paph Magic Cherry x Paph Hsingying Web
NOID phalaenopsis type dendrobium
several phalaenopsis NOIDS
Cymbidium Little Black Sambo