If your windows have cloudy, chalky spots that will not wipe away, you are looking at hard-water staining, usually from sprinkler overspray. Cache Valley water is mineral-heavy, and when those drops dry on glass in the sun, they leave calcium and lime behind.
Caught early, light spotting often comes off with a proper glass cleaning. The mistake people make is scrubbing with abrasive pads or harsh cleaners, which can scratch the glass and make the haze permanent.
Older, layered staining is tougher. It usually needs the right professional-grade treatment applied carefully, then a pure-water rinse so no new minerals are left behind to dry on the surface.
The best fix is prevention: aim sprinklers away from the house and address spotting before it has months to build up. If your glass already has a stubborn haze, that is a job worth handing to a pro before it sets in for good.
Rather leave it to the pros?
Get a free quote for spotless windows across Logan and Cache Valley.