SEASON RELATIVE

Wetter than 6% of 34 past seasons since 1991 at this station. This season’s winter precipitation is 11.6 in water, below a typical 18.3 in water.

Official gauges only (NOAA GHCN-Daily snowfall and NRCS SNOTEL winter precipitation). Not resort marketing, not OpenSnow, not OnTheSnow. This page uses the NRCS SNOTEL station 505:CO:SNTL.

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Colorado Rockies · CO · 2025-26

Keystone

6
Bust
This season at the gauge
11.6 in water
Median
18.3 in water
Record
27.9 in water · 1995-96
Sample
34 past seasons

Cumulative winter precipitation

Ghost lines are past seasons. Dashed is the median. Band is the 10th–90th percentile envelope. X-axis is day of season, not calendar year.

07132026NovDecJanFebMarAprApr 30

Sliding the date recomputes the percentile against the same calendar date in past seasons — never a full year vs a partial year.

The station

NRCS SNOTEL at Grizzly Peak, between Keystone and Arapahoe Basin. Shared high-elevation proxy with A-Basin. Winter precipitation.

ID 505:CO:SNTL
Network NRCS SNOTEL
Elevation 11,110 ft
Metric winter precipitation (in)