Colorado SNOTEL Snowpack Update Report
Based on Mountain Data from NRCS SNOTEL Sites
**Provisional data, subject to revision**
Data based on the first reading of the day (typically 00:00) for Sunday, December 03, 2023
Basin   Site Name Elev (ft) Snow Water Equivalent Percent of Current (in) Today's Median (in) Median Peak (in) Median Peak Date Today's Median Median Peak GUNNISON RIVER BASIN   Butte 10200 3.5    2.8    13.7    Apr 08 125    26      Cochetopa Pass 10061 0.4    0.8(16) 4.8(16) Mar 29(16) 50    8      Columbine Pass 9171 4.2    2.6    18.0    Mar 26 162    23      Idarado 9812 1.4    2.8    14.4    Apr 06 50    10      Mc Clure Pass 8774 3.0    3.4    16.6    Apr 04 88    18      Mesa Lakes 10168 3.9    3.6    19.0    Apr 15 108    21      Overland Res. 9893 2.2    2.8    12.4    Apr 05 79    18      Park Cone 9621 2.8    2.3    10.4    Apr 09 122    27      Park Reservoir 9987 5.2    5.8    27.4    Apr 26 90    19      Porphyry Creek 10788 3.2    3.6    17.0    Apr 15 89    19      Red Mountain Pass 11080 3.8    5.6    25.0    Apr 25 68    15      Sargents Mesa 11499 1.0    2.7(12) 11.4(12) Apr 13(12) 37    9      Schofield Pass 10653 6.6    7.6    35.1    Apr 19 87    19      Slumgullion 11560 2.3    4.2    15.0    Apr 21 55    15      Upper Taylor 10717 3.0    2.6(11) 13.6(11) Apr 03(11) 115    22      Wager Gulch 11132 1.2    N/A    N/A    N/A    *   *   Basin Index (%) 87    UPPER COLORADO RIVER BASIN   Arapaho Ridge 10976 2.9    6.0(18) 25.2(18) May 01(18) 48    12      Bear River 9112 2.2    2.9(16) 12.0(16) Apr 21(16) 76    18      Beaver Ck Village 8565 2.2    2.7(17) 11.7(17) Apr 02(17) 81    19      Berthoud Summit 11314 3.6    4.0    23.2    May 03 90    16      Bison Lake 10964 4.6    6.4    26.9    Apr 29 72    17      Buffalo Park 9249 1.4    3.7(25) 14.9(25) Apr 14(25) 38    9      Chapman Tunnel 10100 4.4    3.5(13) 15.4(13) Apr 19(13) 126    29      Columbine 9167 3.0    4.6    24.6    Apr 05 65    12      Copper Mountain 10523 2.6    3.8    17.4    Apr 26 68    15      Elliot Ridge 10549 3.0    3.8(11) 23.2(11) Apr 25(11) 79    13      Fool Creek 11156 3.6    N/A    N/A    N/A    *   *     Fremont Pass 11326 2.5    4.2    20.8    May 11 60    12      Grizzly Peak 11139 2.2    4.2    19.6    Apr 21 52    11      High Lonesome 10638 3.3    N/A    N/A    N/A    *   *     Hoosier Pass 11611 2.4    4.2    17.3    Apr 27 57    14      Independence Pass 10598 3.1    4.5    17.4    Apr 18 69    18      Ivanhoe 10541 4.6    3.7(29) 17.2(29) Apr 26(29) 124    27      Jones Pass 10426 2.6    3.7(21) 16.8(21) Apr 27(21) 70    15      Kiln 9624 3.2    2.8    13.2    Apr 07 114    24      Lake Irene 10682 3.0    5.4    25.4    Apr 26 56    12      Lynx Pass 8919 1.0    2.5    11.5    Apr 04 40    9      Mc Clure Pass 8774 3.0    3.4    16.6    Apr 04 88    18      Mccoy Park 9516 2.8    3.0(18) 14.6(18) Apr 07(18) 93    19      Mesa Lakes 10168 3.9    3.6    19.0    Apr 15 108    21      Middle Fork Camp 8969 2.4    2.6(19) 11.5(19) Apr 04(19) 92    21      Nast Lake 8731 2.8    1.4    8.8    Mar 28 200    32      North Lost Trail 9219 4.9    3.2    17.4    Apr 04 153    28      Overland Res. 9893 2.2    2.8    12.4    Apr 05 79    18      Park Reservoir 9987 5.2    5.8    27.4    Apr 26 90    19      Phantom Valley 9045 0.9    2.2    10.4    Mar 30 41    9      Schofield Pass 10653 6.6    7.6    35.1    Apr 19 87    19      Stillwater Creek 8880 0.7    N/A    N/A    N/A    *   *     Summit Ranch 9371 1.8    2.5    11.4    Apr 09 72    16      Vail Mountain 10310 3.2    4.5    20.8    Apr 27 71    15      Willow Creek Pass 9523 3.1    4.0    16.4    May 03 78    19    Basin Index (%) 79    SOUTH PLATTE RIVER BASIN   Bear Lake 9522 2.3    3.7    19.8    Apr 27 62    12      Berthoud Summit 11314 3.6    4.0    23.2    May 03 90    16      Black Mountain 8980 1.5    3.2(10) 12.5(10) Apr 17(10) 47    12      Buckskin Joe 11166 1.4    2.5(21) 12.6(21) May 02(21) 56    11      Copeland Lake 8555 0.9    0.8    6.0    Mar 08 112    15      Deadman Hill 10239 3.9    5.2    21.8    May 04 75    18      Echo Lake 10694 1.7    1.6(22) 9.0(22) Apr 29(22) 106    19      Hoosier Pass 11611 2.4    4.2    17.3    Apr 27 57    14      Hourglass Lake 9417 1.5    2.6(12) 13.0(12) Apr 19(12) 58    12      Jackwhacker Gulch 11054 1.4    2.6(22) 14.4(22) Apr 25(22) 54    10      Joe Wright 10158 3.3    5.7    24.0    May 05 58    14      Lake Eldora 9728 1.2    2.8    14.0    Apr 09 43    9      Lake Irene 10682 3.0    5.4    25.4    Apr 26 56    12      Long Draw Resv 10008 3.4    4.5(11) 18.3(11) Apr 27(11) 76    19      Loveland Basin 11427 3.2    5.4(28) 24.4(28) May 02(28) 59    13      Michigan Creek 10702 1.7    2.6(22) 13.2(22) Apr 26(22) 65    13      Niwot 9979 1.9    3.0    15.0    Apr 19 63    13      Rough And Tumble 10432 1.0    1.4(22) 8.3(22) Apr 24(22) 71    12      Sawtooth 9676 3.6    N/A    N/A    N/A    *   *     University Camp 10360 2.0    3.4    19.9    May 07 59    10      Wild Basin 9439 2.5    3.7(15) 18.6(15) Apr 25(15) 68    13      Willow Park 10732 2.8    4.2    21.0    Apr 29 67    13    Basin Index (%) 64    LARAMIE AND NORTH PLATTE RIVER BASINS   Arapaho Ridge 10976 2.9    6.0(18) 25.2(18) May 01(18) 48    12      Blackhall Mtn 9839 5.5    7.6(11) 34.6(11) Apr 27(11) 72    16      Columbine 9167 3.0    4.6    24.6    Apr 05 65    12      Deadman Hill 10239 3.9    5.2    21.8    May 04 75    18      Joe Wright 10158 3.3    5.7    24.0    May 05 58    14      Never Summer 10323 4.6    5.4(18) 23.8(18) May 11(18) 85    19      Rawah 9069 1.3    3.0(18) 12.2(18) Apr 07(18) 43    11      Roach 9740 2.2    4.4    17.5    Apr 25 50    13      Tower 10620 6.4    10.2    49.0    May 07 63    13      Whiskey Park 9020 4.6    5.4    30.8    Apr 17 85    15      Willow Creek Pass 9523 3.1    4.0    16.4    May 03 78    19      Zirkel 9338 3.2    5.8(18) 28.5(18) Apr 07(18) 55    11    Basin Index (%) 65    YAMPA AND WHITE RIVER BASINS   Battle Mountain 7498 0.8    2.0    12.6    Mar 27 40    6      Bear River 9112 2.2    2.9(16) 12.0(16) Apr 21(16) 76    18      Bison Lake 10964 4.6    6.4    26.9    Apr 29 72    17      Buffalo Park 9249 1.4    3.7(25) 14.9(25) Apr 14(25) 38    9      Burro Mountain 9317 1.8    3.4    16.6    Apr 13 53    11      Columbine 9167 3.0    4.6    24.6    Apr 05 65    12      Crosho 8973 1.6    2.4    12.6    Apr 05 67    13      Divide Peak 8730 2.7    4.7    21.4    Apr 15 57    13      Dry Lake 8271 3.1    4.5    22.3    Apr 04 69    14      Elk River 8739 2.5    3.3    19.4    Apr 05 76    13      Elkhead Divide 8800 3.0    N/A    N/A    N/A    *   *     Little Snake River 8928 4.2    5.5(16) 29.0(16) Apr 09(16) 76    14      Lost Dog 9327 3.0    4.2(22) 24.5(22) Apr 10(22) 71    12      Lynx Pass 8919 1.0    2.5    11.5    Apr 04 40    9      Old Battle 9860 4.9    7.6    38.8    May 05 64    13      Rabbit Ears 9411 2.8    5.1    27.9    Apr 21 55    10      Ripple Creek 10350 4.3    6.3    29.3    Apr 25 68    15      Sage Creek Basin 7850 1.1    2.6(19) 14.8(19) Apr 03(19) 42    7      Sandstone RS 8152 2.6    2.2    14.2    Apr 05 118    18      Tower 10620 6.4    10.2    49.0    May 07 63    13      Trapper Lake 9759 3.3    N/A    N/A    N/A    *   *     Whiskey Park 9020 4.6    5.4    30.8    Apr 17 85    15    Basin Index (%) 65    ARKANSAS RIVER BASIN   Apishapa 10027 1.3    0.9    7.6    Mar 16 144    17      Brumley 10594 2.4    2.8    11.8    Apr 19 86    20      Fremont Pass 11326 2.5    4.2    20.8    May 11 60    12      Glen Cove 11391 0.7    0.5(16) 5.7(16) Apr 23(16) 140*   12*     Hayden Pass 10699 0.9    2.4(13) 16.3(13) Apr 18(13) 38    6      Medano Pass 9668 0.4    1.5(25) 7.4(25) Mar 09(25) 27    5      Porphyry Creek 10788 3.2    3.6    17.0    Apr 15 89    19      Saint Elmo 10450 2.8    2.5(13) 11.5(13) Apr 09(13) 112    24      South Colony 10868 2.3    4.5(29) 20.9(29) Apr 23(29) 51    11      Ute Creek 10734 0.8    2.7(20) 12.4(20) Apr 04(20) 30    6      Whiskey Ck 10290 1.6    2.0    11.1    Apr 01 80    14    Basin Index (%) 68    UPPER RIO GRANDE BASIN   Beartown 11600 3.0    5.1    23.2    Apr 17 59    13      Cochetopa Pass 10061 0.4    0.8(16) 4.8(16) Mar 29(16) 50    8      Culebra #2 10562 2.2    3.1    14.0    Apr 05 71    16      Cumbres Trestle 10035 3.3    5.4    26.2    Apr 06 61    13      Grayback 11626 1.4    N/A    N/A    N/A    *   *     Hayden Pass 10699 0.9    2.4(13) 16.3(13) Apr 18(13) 38    6      Lily Pond 11069 1.7    3.0    14.8    Apr 04 57    11      Medano Pass 9668 0.4    1.5(25) 7.4(25) Mar 09(25) 27    5      Middle Creek 11269 3.1    5.2    19.2    Apr 15 60    16      Moon Pass 11128 0.9    1.5(12) 6.8(12) Apr 08(12) 60    13      North Costilla 10598 0.2    1.8    7.0    Mar 20 11    3      San Antonio Sink 9143 1.2    N/A    N/A    N/A    *   *     Sargents Mesa 11499 1.0    2.7(12) 11.4(12) Apr 13(12) 37    9      Shuree 10092 0.9    1.2(10) 6.0(10) Mar 08(10) 75    15      Slumgullion 11560 2.3    4.2    15.0    Apr 21 55    15      Trinchera 10922 1.3    2.2    11.2    Apr 05 59    12      Upper Rio Grande 9379 1.1    1.7    6.6    Mar 18 65    17      Ute Creek 10734 0.8    2.7(20) 12.4(20) Apr 04(20) 30    6      Wager Gulch 11132 1.2    N/A    N/A    N/A    *   *     Wolf Creek Summit 10957 5.3    8.0    35.5    Apr 29 66    15    Basin Index (%) 55    SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASINS   Beartown 11600 3.0    5.1    23.2    Apr 17 59    13      Black Mesa 11564 3.6    N/A    N/A    N/A    *   *     Cascade 8880 -M    1.8    12.7    Mar 10 *   *     Cascade #2 9012 1.6    2.0    10.4    Mar 06 80    15      Columbine Pass 9171 4.2    2.6    18.0    Mar 26 162    23      Columbus Basin 10781 2.6    5.3(26) 25.8(26) Apr 17(26) 49    10      El Diente Peak 10217 2.3    2.6    14.6    Apr 04 88    16      Lizard Head Pass 10193 3.2    3.6    15.2    Apr 05 89    21      Lone Cone 9755 2.7    3.4    15.2    Apr 01 79    18      Mancos 10044 2.8    2.6(26) 16.3(26) Mar 23(26) 108    17      Mineral Creek 10046 2.0    3.4    15.6    Apr 09 59    13      Molas Lake 10631 -M    4.2    22.0    Apr 11 *   *     Red Mountain Pass 11080 3.8    5.6    25.0    Apr 25 68    15      Scotch Creek 9195 2.0    2.0    12.0    Mar 18 100    17      Sharkstooth 10747 2.9    3.7(16) 18.8(16) Apr 12(16) 78    15      Spud Mountain 10674 3.0    5.1    25.6    Apr 04 59    12      Stump Lakes 11248 2.6    4.4    18.8    Apr 22 59    14      Upper San Juan 10140 4.2    5.9    29.7    Apr 09 71    14      Vallecito 10782 2.9    3.1    14.8    Apr 05 94    20      Weminuche Creek 10749 2.9    2.9(10) 16.4(10) Mar 28(10) 100    18      Wolf Creek Summit 10957 5.3    8.0    35.5    Apr 29 66    15    Basin Index (%) 76

-M  = Missing data.
 *  = Analysis may not provide a valid measure of conditions.
N/A = Not available.

Footnotes for median and average:
(##) = If less than 30 years are available, this value specifies the number of years used for the median and average calculations.
Sites with less than 10 years available do not have medians or averages.

The snow water equivalent percent of median (or average) represents the current snow water
equivalent found at selected SNOTEL sites in or near the basin compared to the median (or average) value
for those sites on this day.

The snow water equivalent percent of median (or average) peak represents the current
snow water equivalent at selected SNOTEL sites in or near the basin compared to the median (or average)
of the maximum seasonal values observed each water year for those sites.


Contact your state water supply staff for assistance.

Medians and averages are calculated for the period 1991-2020.

Provisional data, subject to revision.
* Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median or average for the day is less than 10% of the maximum median or average value for the year.

* Basin - More than half of the stations for a basin with normals report missing or invalid data.


The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians or averages and the resulting fraction multiplied by 100.