Upper Colorado snowpack › San Juan
San Juan basin snowpack
17 SNOTEL stations in the San Juan subregion of the Upper Colorado River Basin. As of Oct 29, 2026, day 29 of water year 2027.
Snow water equivalent
263%
of the 1991–2020 median for this date · 142% of average
Basin-average SWE
1.28 in
median 0.49 in · average 0.9 in
Water-year precipitation
332%
of average since Oct 1 · 9.32 in vs. 2.81 in
Toward the normal peak
8%
of the average peak, 16.93 in around Mar 13
Stations reporting
17 of 17
average elevation 10,030 ft
This water year against the normals
Water year 2027Water year 20261991–2020 median1991–2020 average
Every station in the basin
| Station | Elev (ft) | SWE | Median | % med | Avg | % avg | Precip | % avg | Normal peak | As of |
|---|---|---|---|---|---|---|---|---|---|---|
| Beaver Spring AZ | 9,240 | 0 | 0 | — | 0.1 | 0% | 5.3 | 379% | 8.2 · Mar 2 | 2026-10-29 |
| Buckboard Flat UT | 8,920 | 0.6 | — | — | — | — | 15.2 | — | — · Oct 1 | 2026-10-29 |
| Camp Jackson UT | 8,840 | 0 | 0 | — | 0.4 | 0% | 10.7 | 428% | 14 · Mar 11 | 2026-10-29 |
| Cascade #2 CO | 8,990 | 0.2 | 0 | — | 0.2 | 100% | 8.7 | 322% | 10.8 · Mar 6 | 2026-10-29 |
| Columbus Basin CO | 10,780 | 1.6 | 1.1 | 146% | 2.1 | 76% | 10.3 | 258% | 25.5 · Apr 8 | 2026-10-29 |
| Elk Ridge UT | 8,540 | 0 | — | — | — | — | 7.5 | — | — · Oct 1 | 2026-10-29 |
| Mancos CO | 10,020 | 0 | 0 | — | 0.4 | 0% | 6.2 | 258% | 15.3 · Mar 12 | 2026-10-29 |
| Mineral Creek CO | 10,030 | 1.3 | 0.4 | 325% | 0.7 | 186% | 8.6 | 344% | 14.8 · Apr 2 | 2026-10-29 |
| Molas Lake CO | 10,610 | 1.7 | 0.6 | 283% | 0.9 | 189% | 9.2 | 341% | 19.6 · Apr 5 | 2026-10-29 |
| Navajo Whiskey Ck NM | 9,050 | 0.2 | 0 | — | 0 | — | 4.7 | 392% | 7.9 · Mar 2 | 2026-10-29 |
| Red Mountain Pass CO | 11,060 | 4 | 1 | 400% | 1.4 | 286% | 9.4 | 294% | 23.8 · Apr 14 | 2026-10-29 |
| Spud Mountain CO | 10,660 | 1.3 | 0.4 | 325% | 1.1 | 118% | 10.2 | 283% | 24.1 · Mar 29 | 2026-10-29 |
| Stump Lakes CO | 11,230 | 2.2 | 1.2 | 183% | 1.6 | 138% | 9.6 | 356% | 18.8 · Apr 15 | 2026-10-29 |
| Upper San Juan CO | 10,140 | 0.9 | 0.5 | 180% | 1.3 | 69% | 13 | 317% | 28.9 · Apr 4 | 2026-10-29 |
| Vallecito CO | 10,740 | 1 | 0 | — | 0.5 | 200% | 8.8 | 352% | 16 · Apr 2 | 2026-10-29 |
| Weminuche Creek CO | 10,730 | 0.8 | 0.2 | 400% | 0.3 | 267% | 10 | 370% | 16.4 · Mar 13 | 2026-10-29 |
| Wolf Creek Summit CO | 10,930 | 4 | 1.9 | 211% | 2.5 | 160% | 15.1 | 387% | 31.2 · Apr 24 | 2026-10-29 |
Snow water equivalent and precipitation in inches. Greyed rows have not reported in the last 3 days and are left out of the basin figures. A dash means the normal for this date is zero.
Snow water equivalent, percent of 1991–2020 median: under 50%50–90%90–110%110–150%over 150% median is zero today not reporting
Water-year precipitation
Water year 2027Water year 20261991–2020 average
Peak snowpack by water year
Since 1981 the San Juan basin-average snowpack has peaked as high as 35.63 in (May 6, 1984) and as low as 2.14 in (Sep 26, 1986). The 1991–2020 average peak is 16.93 in around Mar 13.
| Water year | Peak SWE (in) | Peak date | % of normal peak | April 1 SWE (in) | Stations |
|---|---|---|---|---|---|
| 2027 (to date) | 1.25 | Oct 25 | 7% | — | 17 |
| 2026 | 7.61 | Feb 23 | 45% | 3.07 | 17 |
| 2025 | 10.02 | Mar 20 | 59% | 8.32 | 17 |
| 2024 | 17.24 | Apr 1 | 102% | 17.24 | 17 |
| 2023 | 30.32 | Apr 5 | 179% | 30.16 | 16 |
| 2022 | 15.49 | Mar 16 | 92% | 14.39 | 16 |
| 2021 | 16.17 | Mar 26 | 96% | 15.74 | 16 |
| 2020 | 17.46 | Mar 30 | 103% | 17.24 | 16 |
| 2019 | 28.59 | Mar 25 | 169% | 28.43 | 16 |
| 2018 | 8.48 | Mar 23 | 50% | 7.94 | 16 |
| 2017 | 22.75 | Mar 7 | 134% | 19.98 | 16 |
| 2016 | 14.91 | Feb 7 | 88% | 13.53 | 16 |
| 2015 | 12.39 | Mar 5 | 73% | 9.05 | 16 |
| 2014 | 14.31 | Mar 9 | 85% | 13.52 | 16 |
| 2013 | 14.12 | Mar 11 | 83% | 11.91 | 16 |
| 2012 | 14.86 | Mar 9 | 88% | 10.17 | 16 |
| 2011 | 18.05 | Mar 10 | 107% | 16.29 | 15 |
| 2010 | 21.06 | Mar 28 | 124% | 20.91 | 15 |
| 2009 | 20.04 | Apr 17 | 118% | 18.66 | 14 |
| 2008 | 29.31 | Apr 12 | 173% | 28.51 | 12 |
| 2007 | 14.07 | Mar 10 | 83% | 12.87 | 12 |
| 2006 | 16.64 | Apr 7 | 98% | 15.49 | 12 |
| 2005 | 33.73 | Apr 4 | 199% | 33.72 | 12 |
| 2004 | 20.69 | Mar 4 | 122% | 16.91 | 12 |
| 2003 | 16.04 | Mar 22 | 95% | 15.73 | 12 |
| 2002 | 8.88 | Mar 20 | 53% | 6.71 | 12 |
| 2001 | 23.61 | Apr 13 | 140% | 20.4 | 12 |
| 2000 | 16.99 | Apr 4 | 100% | 16.73 | 12 |
| 1999 | 20.18 | May 5 | 119% | 14.22 | 12 |
| 1998 | 21.91 | Apr 18 | 129% | 19.28 | 12 |
| 1997 | 29.04 | Apr 13 | 172% | 26.23 | 12 |
| 1996 | 15.94 | Mar 29 | 94% | 15.73 | 12 |
| 1995 | 30.43 | May 7 | 180% | 29.19 | 12 |
| 1994 | 18.67 | May 1 | 110% | 16.39 | 12 |
| 1993 | 34.18 | Apr 8 | 202% | 32.54 | 10 |
| 1992 | 21.58 | Apr 1 | 128% | 21.58 | 10 |
| 1991 | 21.38 | Apr 1 | 126% | 21.38 | 10 |
| 1990 | 16.61 | May 2 | 98% | 11.64 | 10 |
| 1989 | 25.6 | Mar 7 | 151% | 24.32 | 9 |
| 1988 | 16.94 | Mar 19 | 100% | 15.99 | 9 |
| 1987 | 29.9 | Apr 14 | 177% | 27.78 | 9 |
| 1986 | 2.14 | Sep 26 | 13% | — | 9 |
| 1985 | 33.83 | Apr 29 | 200% | 33.33 | 4 |
| 1984 | 35.63 | May 6 | 211% | 28.27 | 3 |
| 1983 | 33.87 | May 3 | 200% | 29.97 | 3 |
| 1982 | 27.37 | Apr 3 | 162% | 26.83 | 3 |
| 1981 | 14.93 | Apr 7 | 88% | 13.8 | 3 |
Peak of the basin-average daily SWE over the stations with data that year; the station count shows how the set has grown. Data: NRCS AWDB, nightly; current-year values are provisional. Other basins: Colorado Headwaters · Duchesne-Lower Green · Upper Green · Yampa-White · Gunnison · Dolores-San Miguel · Dirty Devil-Fremont.