West coast Aneides would appear to be just as tolerant of these warm temperatures although peak activity is reached during spring and early summer when daytimes are cool to warm and nighttimes are cool. Significantly, during this period, rainfall is prevalent and therefore humidity is quite high. During much cooler, damper weather Aneides may even forage during the day as I discovered in Big Basin Redwoods State Park. However, this species is not generally available in captivity. Unless such temperatures can be constantly maintained then there really is no point attempting to keep Aneides as they will simply die.
Heat stress is a well documented fatality in plethodontid salamanders.
Temperature governs reproductive, feeding and hibernation behaviour. In the wild these salamanders are able to move deep underground to escape heat. In captivity they do not have such opportunities. Humidity is also important. Being plethodontid or lungless salamanders, the exchange of oxygen and waste gases through the skin demands a moist environment.