Units

Headline numbers

Which years were you there?

Pick your years and every chart below recomputes just for you, in your browser — nothing is sent anywhere. Share a link with ?years=… pre-filled using "Copy link".

Every event week since 1940

One bar per year. Orange marks the selected years (pick them above); hover any bar for details.

The playa calendar

Every held year, 23 days centered on the 9-day event window (build week and exodus dimmed either side).

PRISM days end at 5 am Pacific, so an afternoon storm shows up on the next day.

Selected years vs everyone else's

Left: every year's total, grouped by era (selected years in orange). Right: a live shuffle test of whether the selected years differ from the rest by more than chance.

Odds of a wet week

How often has rain at or above a threshold happened, in different eras?

Ten-year rolling wet-week frequency

Trend

Is there a long-term slope? Two ways of fitting a line, plus the same stats for every source and window.

The wettest weeks

Top 12 event weeks on record, ranked by total rain.

Do the sources agree?

Each dot is a year's Aug 15–Sep 15 total, one source vs another. Near the diagonal means the sources agree.

The wider region

Same story, or not? Season totals at three long-running regional stations.

Faint bars are single-year totals; the bold line is the trailing 10-year mean.

Hour by hour

Pick a year to see precipitation and wind gusts through the event window, hour by hour.

Methods & caveats
Data table

One row per year, for the current source and window. Click a header to sort. This table is the accessible fallback for every chart above.