Mailbox Canyon
32.67896, -110.36203
Nothing recentlast reported 2 years ago
How this site decides what it can and cannot say — the method.
Insufficient record
No read issued
2 reports — a correlation needs at least 10 before it means anything, so no read is issued here.
What people saw
2 observations between 2021-03-20 and 2024-04-13, ranging from dry to trickle. Most recently trickle, 2 years ago.
These are the observations themselves, not a forecast. Too few to correlate against rainfall, but they are what people actually found.
Somebody found this completely dry. A source that has been dry can be dry again, whatever the rest of the record says.
- 2024-04-13Trickle0.4Intermittent trickle along first half mile, didn't proceed further.
- 2021-03-20Dry0.0Dry at mouth.
Why
The engine will still produce a number from 2 reports, and that number is noise. It will happily report a perfect correlation from two observations. On a screen where someone is deciding how much water to carry, that is the most dangerous thing this site could render, so it is not rendered.
With 2 reports, the engine's read would average all 2 of them rather than the ones whose rainfall matched today — so it would return the same figure on every date of the year, whatever the weather had done. It is a summary of the record, not a forecast.
8 more reports would reach the 10 needed for a read.
Rainfall here
The last 60 days here have been about usual for mid September — 47th percentile against 19 years of rainfall at this coordinate, through 2026-09-15.
This is rainfall, not water. It says what the weather has done here, not what is in the ground — a spring fed from deep water can run through a dry autumn, and a runoff channel can be empty two weeks after a wet one. Which of those this is takes reports to find out.
5.87″ over 60 days, against 19 years at this coordinate. Band: typical.
This is the fix
Every dated observation moves this source closer to a read, and sharpens the ones around it too.