I live in Fl, nuff said,every Sunday I wipe them all down with a oil based cloth and on my auto will put a drop of oil on each slide and a drop on the barrel and work the slide a few times. once a month I'll break them down and make sure there clean and lubed to avoid any rust same goes for my one revolver.now if I go shooting any gun that is used is always completely broken down cleaned and lubed before putting away.