Upper Colorado snowpack › Dolores-San Miguel › Lone Cone
Lone Cone snowpack
NRCS SNOTEL station 589 at 9,730 ft in San Miguel County, Colorado, in the Dolores-San Miguel basin, with daily records since Jul 19, 1980. Latest reading Oct 29, 2026.
Snow water equivalent
0%
of the 1991–2020 median for this date · 0% of average
SWE today
0 in
median 0.2 in · average 0.5 in
Water-year precipitation
336%
of average since Oct 1 · 8.4 in vs. 2.5 in
Toward the normal peak
0%
of the average peak, 15.8 in around Mar 12
This water year against the normals
Water year 2027Water year 20261991–2020 median1991–2020 average
Water-year precipitation
Water year 2027Water year 20261991–2020 average
Peak snowpack by water year
Since 1981 this station's snowpack has peaked as high as 29.1 in (Apr 13, 1997) and as low as 7.4 in (Apr 9, 1990). The 1991–2020 average peak is 15.8 in around Mar 12.
| Water year | Peak SWE (in) | Peak date | % of normal peak | April 1 SWE (in) | Days of data |
|---|---|---|---|---|---|
| 2026 | 10.3 | Mar 7, 2026 | 65% | 1.6 | 365 |
| 2025 | 12.2 | Mar 22, 2025 | 77% | 9.5 | 365 |
| 2024 | 15.9 | Apr 1, 2024 | 101% | 15.9 | 366 |
| 2023 | 28.4 | Apr 1, 2023 | 180% | 28.4 | 365 |
| 2022 | 16.1 | Mar 23, 2022 | 102% | 14.8 | 365 |
| 2021 | 14.2 | Mar 25, 2021 | 90% | 12.7 | 365 |
| 2020 | 13.3 | Mar 30, 2020 | 84% | 13.1 | 366 |
| 2019 | 23.2 | Mar 25, 2019 | 147% | 22.9 | 365 |
| 2018 | 9.7 | Mar 23, 2018 | 61% | 8 | 365 |
| 2017 | 21.7 | Mar 6, 2017 | 137% | 19.2 | 365 |
| 2016 | 15.1 | Mar 29, 2016 | 96% | 15.1 | 366 |
| 2015 | 12.3 | Mar 3, 2015 | 78% | 6.4 | 365 |
| 2014 | 14 | Mar 15, 2014 | 89% | 12.9 | 365 |
| 2013 | 13.9 | Mar 25, 2013 | 88% | 10.9 | 365 |
| 2012 | 13.9 | Mar 19, 2012 | 88% | 6.8 | 366 |
| 2011 | 14.3 | Mar 27, 2011 | 91% | 12.7 | 365 |
| 2010 | 20 | Apr 3, 2010 | 127% | 19.6 | 365 |
| 2009 | 18.3 | Apr 6, 2009 | 116% | 17.2 | 365 |
| 2008 | 22.5 | Mar 18, 2008 | 142% | 20.7 | 366 |
| 2007 | 14.7 | Mar 10, 2007 | 93% | 13.2 | 365 |
| 2006 | 14 | Apr 6, 2006 | 89% | 13.7 | 365 |
| 2005 | 19.9 | Mar 30, 2005 | 126% | 19.8 | 365 |
| 2004 | 15.3 | Mar 4, 2004 | 97% | 9.8 | 366 |
| 2003 | 15.2 | Mar 30, 2003 | 96% | 14.3 | 365 |
| 2002 | 11.1 | Mar 20, 2002 | 70% | 6.7 | 365 |
| 2001 | 14.9 | Mar 30, 2001 | 94% | 13 | 365 |
| 2000 | 15.4 | Apr 4, 2000 | 97% | 14.6 | 366 |
| 1999 | 13.8 | Mar 15, 1999 | 87% | 6.7 | 365 |
| 1998 | 18.4 | Apr 9, 1998 | 116% | 17.9 | 365 |
| 1997 | 29.1 | Apr 13, 1997 | 184% | 27.9 | 365 |
| 1996 | 13.8 | Mar 28, 1996 | 87% | 13.8 | 366 |
| 1995 | 24.6 | Apr 25, 1995 | 156% | 24.4 | 365 |
| 1994 | 15.6 | Apr 12, 1994 | 99% | 14.8 | 365 |
| 1993 | 26.5 | Apr 7, 1993 | 168% | 25.6 | 365 |
| 1992 | 18.6 | Mar 31, 1992 | 118% | 18.5 | 366 |
| 1991 | 20 | Mar 31, 1991 | 127% | 20 | 365 |
| 1990 | 7.4 | Apr 9, 1990 | 47% | 7 | 365 |
| 1989 | 20 | Mar 3, 1989 | 127% | 17.6 | 365 |
| 1988 | 14 | Mar 18, 1988 | 89% | 11.5 | 366 |
| 1987 | 22 | Mar 29, 1987 | 139% | 21.8 | 365 |
| 1986 | 20.8 | Mar 17, 1986 | 132% | 18.8 | 365 |
| 1985 | 23.5 | Mar 31, 1985 | 149% | 23.3 | 365 |
| 1984 | 17.5 | Feb 17, 1984 | 111% | 7.1 | 366 |
| 1983 | 20.8 | Apr 3, 1983 | 132% | 20.1 | 365 |
| 1982 | 23.1 | Apr 1, 1982 | 146% | 23.1 | 365 |
| 1981 | 13.2 | Apr 4, 1981 | 84% | 11.6 | 365 |
Water years with fewer than 150 days of data are omitted. Data: NRCS National Water and Climate Center AWDB (station 589:CO:SNTL), pulled nightly; current-year values are provisional. Station location: 37.8917, -108.1964. Other stations in the Dolores-San Miguel basin are listed on the basin page.