El Niño and Utah winters: what actually happened
In the 9 strong El Niño events since 1957, Utah winters were wetter than the twentieth-century average 6 times out of 9. That is a lean, not a rule — 3 of them went the other way, and one of them landed in the 26th percentile of the whole 131-winter record. This page shows every one of those winters from the NOAA files, so you can see the spread rather than a headline. It is history, not a forecast. Nobody can tell you what your winter will do.
How to read this page. A strong El Niño shifts the odds of a wet or dry winter — it does not set the outcome. A sample of 9 events is small. Treat the table below the way you would treat “6 of the last 9 times, it went this way” — useful for deciding whether to clear a gutter early, useless for planning a specific week.
Every strong El Niño winter in Utah since 1957, from the NOAA record
Each row is the December–February winter that an event’s peak season falls in. Precipitation is compared against the 1901-2000 average of 3.54 inches. The percentile says where that winter sat in the full 1896–2026 record.
| El Niño event | Winter | Precipitation | vs average | Percentile |
|---|---|---|---|---|
| 1957-58 | DJF 1958 | 3.29 in | -0.25 in | 48th |
| 1965-66 | DJF 1966 | 3.55 in | +0.01 in | 57th |
| 1972-73 | DJF 1973 | 3.77 in | +0.23 in | 60th |
| 1982-83 | DJF 1983 | 3.86 in | +0.32 in | 65th |
| 1991-92 | DJF 1992 | 2.68 in | -0.86 in | 26th |
| 1997-98 | DJF 1998 | 4.31 in | +0.77 in | 78th |
| 2009-10 | DJF 2010 | 4.25 in | +0.71 in | 76th |
| 2014-16 | DJF 2016 | 3.42 in | -0.12 in | 54th |
| 2023-24 | DJF 2024 | 3.91 in | +0.37 in | 67th |
Temperature is deliberately left out of this table. The Utah record warms across the period, so every recent winter reads warm against a twentieth-century baseline whether or not an El Niño was running — quoting it as an El Niño effect would be misleading, so we don’t.
What a wetter-leaning winter actually costs you
The damage from a wet winter is rarely the rain itself. It is water going somewhere it was not meant to go, usually because something was already marginal before the season started:
- Gutters and downpipes. A blocked run does not fail in summer. It fails during the first sustained rain, and the water goes into the fascia or down the wall.
- Roof flashing and valleys. Wind-driven rain finds gaps that shed a normal shower without complaint.
- Drainage and grading. Ground that slopes toward the house moves water into the foundation once it is saturated.
- Sump pumps. The one appliance nobody tests until the night it is needed.
None of that is urgent in the way a forecast is urgent. It is the kind of thing worth doing in autumn, in daylight, rather than in February with a torch.
The one thing that fails in every winter, wet or dry
Winter storms take the power down, and an El Niño winter is a storm-track story wherever it lands. A house without heat, light or a working fridge is the same problem in Utah as anywhere else — and unlike a roof, it is a problem you can solve in an afternoon.
We keep a tested list of battery power stations in the off-grid power section of our camping guide, with prices carrying the date they were checked. They are the same units we recommend for summer outages, because an outage does not care what season it is.
This page is free to read and carries no paid links. It is funded by our cooling-gear guides — when someone buys through a link there, the retailer pays us a commission and the price is the same either way. That is what pays for keeping these NOAA figures current. How we earn.
Where these numbers come from
- NOAA NCEI Climate at a Glance — statewide December–February series for Utah, record 1896–2026.
- Event list and peak seasons: NOAA CPC ONI and RONI files. The table holds every event NOAA’s index rates strong or stronger since that index begins in 1950; the list is recomputed from the files on every data refresh.
- Baseline: 1901-2000 mean. Data generated 2026-09-02; the page rebuilds from the same files.
We publish the underlying figures as machine-readable data at /data.json, free to read and cite.