For anecdotal purposes mine had not split before I went on vacation. We drove 1,400 +/- miles and when I got home it had. That was over 7 days so that is concentrated where as I wouldn't drive that much in a month; would take me 2 months at my current rate. But my indy mechanic said I didn't want to wait on this repair. I would think if you have wet weather coming it'd not be a good thing...??!!