When waterfalls peak: timing your visit by season
A waterfall is a flow report you can stand in front of. Visit at the right time and even a modest drop is loud and white; visit at the wrong time and a famous one can be a wet stain on rock. The schedule is predictable once you know what feeds the fall.
Snowmelt country: the West's big spring show
Falls fed by mountain snowpack — the Sierra, Cascades, Rockies — peak on snowmelt, typically April through June depending on elevation and the winter's snow totals. High-elevation falls peak later than low ones. By late summer, many snowmelt falls thin dramatically, and some seasonal ones stop outright.
Rain country: winter and storm-chasing
Coastal ranges and the Southeast run on rain instead of snowpack. Pacific Northwest falls are strongest in the wet season, November through spring. In the Appalachians and Southeast, flow follows recent rainfall more than the calendar — the best show is one to two days after a good storm, any month of the year.
Spring-fed constancy
Some falls pour from underground springs rather than surface runoff, and they barely change all year. They're the reliable choice for late-summer trips when everything else is low — and in cold snaps they grow spectacular ice.
Reading the signal before you drive
Check the watercourse on the fall's page: a named river means more reliable flow than an unnamed seasonal creek. Then sanity-check with recent conditions reports and the weather history for the area — thirty seconds of checking beats a three-hour drive to a dry ledge.
High water cuts both ways. Peak flow means spray, slick rock, and dangerous crossings; the photogenic sweet spot is usually just after peak, when flow is strong but trails have dried out.