Upper Colorado snowpack › Colorado Headwaters › Grizzly Peak
Grizzly Peak snowpack
NRCS SNOTEL station 505 at 11,110 ft in Summit County, Colorado, in the Colorado Headwaters basin, with daily records since Aug 10, 1980. Latest reading Oct 29, 2026.
Snow water equivalent
10%
of the 1991–2020 median for this date · 8% of average
SWE today
0.1 in
median 1 in · average 1.3 in
Water-year precipitation
60%
of average since Oct 1 · 1.2 in vs. 2 in
Toward the normal peak
1%
of the average peak, 17.8 in around Apr 16
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 31.8 in (May 2, 2011) and as low as 9.8 in (Apr 8, 1981). The 1991–2020 average peak is 17.8 in around Apr 16.
| Water year | Peak SWE (in) | Peak date | % of normal peak | April 1 SWE (in) | Days of data |
|---|---|---|---|---|---|
| 2026 | 10.2 | Mar 17, 2026 | 57% | 7.2 | 365 |
| 2025 | 21.3 | Apr 9, 2025 | 120% | 20.1 | 365 |
| 2024 | 18.7 | May 12, 2024 | 105% | 16.6 | 366 |
| 2023 | 19.1 | Apr 27, 2023 | 107% | 17 | 365 |
| 2022 | 17.4 | Apr 17, 2022 | 98% | 15.1 | 365 |
| 2021 | 14 | Apr 24, 2021 | 79% | 13.5 | 365 |
| 2020 | 20.6 | Apr 24, 2020 | 116% | 18 | 366 |
| 2019 | 23.4 | May 1, 2019 | 131% | 22.3 | 365 |
| 2018 | 18.7 | Apr 20, 2018 | 105% | 15.1 | 365 |
| 2017 | 22.1 | Apr 4, 2017 | 124% | 21.6 | 365 |
| 2016 | 19.8 | Apr 17, 2016 | 111% | 18.2 | 366 |
| 2015 | 16.6 | May 23, 2015 | 93% | 15.7 | 365 |
| 2014 | 25.8 | Apr 7, 2014 | 145% | 24.3 | 365 |
| 2013 | 18.4 | Apr 23, 2013 | 103% | 13.1 | 365 |
| 2012 | 11.9 | Mar 19, 2012 | 67% | 9.9 | 366 |
| 2011 | 31.8 | May 2, 2011 | 179% | 25.9 | 365 |
| 2010 | 12.8 | Apr 8, 2010 | 72% | 11.8 | 365 |
| 2009 | 21.6 | Apr 18, 2009 | 121% | 18.8 | 365 |
| 2008 | 23 | Apr 12, 2008 | 129% | 20.7 | 366 |
| 2007 | 20.6 | Apr 13, 2007 | 116% | 17.7 | 365 |
| 2006 | 21.6 | Apr 3, 2006 | 121% | 21.3 | 365 |
| 2005 | 12.8 | Apr 12, 2005 | 72% | 12.2 | 365 |
| 2004 | 12.7 | Apr 13, 2004 | 71% | 10.9 | 366 |
| 2003 | 23.4 | Apr 24, 2003 | 131% | 20.1 | 365 |
| 2002 | 9.8 | Mar 28, 2002 | 55% | 9.5 | 365 |
| 2001 | 16.5 | Apr 15, 2001 | 93% | 15.5 | 365 |
| 2000 | 17 | Apr 4, 2000 | 96% | 16.5 | 366 |
| 1999 | 19.5 | May 6, 1999 | 110% | 15.7 | 365 |
| 1998 | 18.8 | Apr 21, 1998 | 106% | 16.7 | 365 |
| 1997 | 23.9 | May 2, 1997 | 134% | 20.7 | 365 |
| 1996 | 29.5 | May 2, 1996 | 166% | 27.9 | 366 |
| 1995 | 24 | May 31, 1995 | 135% | 16.5 | 365 |
| 1994 | 18.4 | Apr 14, 1994 | 103% | 16.2 | 365 |
| 1993 | 24.3 | Apr 25, 1993 | 137% | 20.4 | 365 |
| 1992 | 13 | Apr 7, 1992 | 73% | 11.9 | 366 |
| 1991 | 13 | May 7, 1991 | 73% | 11.9 | 365 |
| 1990 | 16.7 | Apr 15, 1990 | 94% | 14.5 | 365 |
| 1989 | 14.4 | Apr 15, 1989 | 81% | 12.5 | 365 |
| 1988 | 16.8 | Apr 26, 1988 | 94% | 16.3 | 366 |
| 1987 | 13.3 | Apr 21, 1987 | 75% | 12.2 | 365 |
| 1986 | 23.1 | Apr 27, 1986 | 130% | 20.3 | 365 |
| 1985 | 17.8 | Apr 8, 1985 | 100% | 15.4 | 365 |
| 1984 | 28.9 | May 9, 1984 | 162% | 22 | 366 |
| 1983 | 26.5 | May 21, 1983 | 149% | 19 | 365 |
| 1982 | 22 | Apr 11, 1982 | 124% | 15.9 | 365 |
| 1981 | 9.8 | Apr 8, 1981 | 55% | 8.7 | 365 |
Water years with fewer than 150 days of data are omitted. Data: NRCS National Water and Climate Center AWDB (station 505:CO:SNTL), pulled nightly; current-year values are provisional. Station location: 39.6465, -105.8694. Other stations in the Colorado Headwaters basin are listed on the basin page.