Colorado SNOTEL Snowpack Comparison Update Report

Colorado SNOTEL Snowpack Comparison 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 Saturday, May 17, 2025

Basin Site Name	Elev (ft)	Snow Water Equivalent			Current as Percent of 2024	Current as Percent of Median	2024 as Percent of Median
Basin Site Name	Elev (ft)	Current (in)	2024 (in)	Median (in)	Current as Percent of 2024	Current as Percent of Median	2024 as Percent of Median
GUNNISON RIVER BASIN
Butte	10190	0.0	6.2	3.2	0	0	194
Castle Peak	11500	21.8	-M	N/A	*	*	*
Cochetopa Pass	10020	0.0	0.0	0.0₍₁₆₎	*	*	*
Columbine Pass	9160	0.0	0.0	0.0	*	*	*
Idarado	9780	0.0	0.0	0.0	*	*	*
Mc Clure Pass	8760	0.0	0.0	0.0	*	*	*
Mesa Lakes	10160	0.2	4.3	8.6	5	2	50
Overland Res.	9890	0.2	0.0	0.0	*	*	*
Park Cone	9600	0.0	3.7	0.0	0*	*	*
Park Reservoir	9990	7.2	16.1	21.4	45	34	75
Porphyry Creek	10790	6.2	15.4	7.1	40	87	217
Rat Creek	11680	0.8	-M	N/A	*	*	*
Red Mountain Pass	11050	13.5	18.0	17.8	75	76	101
Sargents Mesa	11490	0.0	7.2	6.8₍₁₂₎	0	0	106
Schofield Pass	10640	11.0	24.7	25.6	45	43	96
Slumgullion	11560	0.0	1.4	6.9	0	0	20
Upper Taylor	10710	0.0	7.4	4.4₍₁₁₎	0	0	168
Wager Gulch	11110	0.1	0.0	N/A	*	*	*
Basin Index (%)		37				38	103
UPPER COLORADO RIVER BASIN
Arapaho Ridge	10960	14.8	22.9	19.8₍₁₈₎	65	75	116
Bear River	9100	0.1	5.2	5.8₍₁₆₎	2	2	90
Beaver Ck Village	8530	0.0	0.0	0.0₍₁₇₎	*	*	*
Berthoud Summit	11300	16.7	22.3	19.0	75	88	117
Bison Lake	10950	10.5	24.6	25.4	43	41	97
Buffalo Park	9240	2.6	9.4	7.5₍₂₅₎	28	35	125
Castle Peak	11500	21.8	-M	N/A	*	*	*
Chapman Tunnel	10090	0.3	12.0	5.5₍₁₃₎	2	5	218
Columbine	9170	0.4	8.5	4.8	5	8	177
Copper Mountain	10500	9.9	14.4	10.2	69	97	141
Elliot Ridge	10550	10.2	24.2	15.8₍₁₁₎	42	65	153
Fool Creek	11130	19.6	22.5	N/A	87	*	*
Fremont Pass	11310	17.6	22.0	18.7	80	94	118
Grizzly Peak	11110	14.4	17.6	11.4	82	126	154
High Lonesome	10630	12.8	22.2	N/A	58	*	*
Hoosier Pass	11600	10.4	20.3	13.4	51	78	151
Independence Pass	10570	0.4	13.3	8.6	3	5	155
Ivanhoe	10540	9.0	20.3	10.9₍₂₉₎	44	83	186
Jones Pass	10420	3.7	9.2	13.5₍₂₁₎	40	27	68
Kiln	9610	0.0	1.7	0.0	0*	*	*
Lake Irene	10680	14.8	21.7	19.8	68	75	110
Lynx Pass	8910	0.2	0.0	0.0	*	*	*
Mc Clure Pass	8760	0.0	0.0	0.0	*	*	*
Mccoy Park	9500	0.0	2.6	0.4₍₁₈₎	0*	0*	650*
Mesa Lakes	10160	0.2	4.3	8.6	5	2	50
Middle Fork Camp	8960	0.0	0.0	0.0₍₁₉₎	*	*	*
Nast Lake	8710	0.1	0.0	0.0	*	*	*
North Lost Trail	9190	0.1	1.7	0.9	6*	11*	189*
Overland Res.	9890	0.2	0.0	0.0	*	*	*
Park Reservoir	9990	7.2	16.1	21.4	45	34	75
Phantom Valley	9030	0.0	3.5	0.0	0*	*	*
Schofield Pass	10640	11.0	24.7	25.6	45	43	96
Stillwater Creek	8760	0.1	0.0	N/A	*	*	*
Summit Ranch	9350	0.1	0.0	0.0	*	*	*
Vail Mountain	10290	0.1	13.7	13.9	1	1	99
Willow Creek Pass	9520	8.5	13.4	11.3	63	75	119
Basin Index (%)		50				56	120
SOUTH PLATTE RIVER BASIN
Bear Lake	9490	9.7	19.1	13.0	51	75	147
Berthoud Summit	11300	16.7	22.3	19.0	75	88	117
Black Mountain	8950	0.0	3.2	1.4₍₁₀₎	0	0	229
Buckskin Joe	11160	6.8	15.5	10.0₍₂₁₎	44	68	155
Copeland Lake	8570	0.1	0.0	0.0	*	*	*
Deadman Hill	10240	9.9	21.4	16.8	46	59	127
Echo Lake	10660	5.8	10.4	6.6₍₂₂₎	56	88	158
Hoosier Pass	11600	10.4	20.3	13.4	51	78	151
Hourglass Lake	9380	0.2	0.0	4.6₍₁₂₎	*	4	0
Jackwhacker Gulch	11030	3.9	9.5	8.6₍₂₂₎	41	45	110
Joe Wright	10140	16.5	22.2	20.4	74	81	109
Lake Eldora	9700	0.0	1.6	0.0	0*	*	*
Lake Irene	10680	14.8	21.7	19.8	68	75	110
Long Draw Resv	9990	7.4	12.8	13.5₍₁₁₎	58	55	95
Loveland Basin	11410	21.1	22.5	20.3₍₂₈₎	94	104	111
Michigan Creek	10700	2.9	11.7	9.1₍₂₂₎	25	32	129
Niwot	9940	3.6	11.3	8.6	32	42	131
Rough And Tumble	10420	0.5	5.3	1.8₍₂₂₎	9	28	294
Sawtooth	9640	21.3	27.0	N/A	79	*	*
University Camp	10330	17.2	20.5	17.8	84	97	115
Wild Basin	9410	9.7	18.7	11.7₍₁₅₎	52	83	160
Willow Park	10710	15.0	20.6	14.5	73	103	142
Basin Index (%)		61				75	126
LARAMIE AND NORTH PLATTE RIVER BASINS
Arapaho Ridge	10960	14.8	22.9	19.8₍₁₈₎	65	75	116
Blackhall Mtn	9830	19.0	34.8	27.9₍₁₁₎	55	68	125
Columbine	9170	0.4	8.5	4.8	5	8	177
Deadman Hill	10240	9.9	21.4	16.8	46	59	127
Joe Wright	10140	16.5	22.2	20.4	74	81	109
Never Summer	10300	17.9	24.4	20.4₍₁₈₎	73	88	120
Rawah	9100	0.0	6.0	0.1₍₁₈₎	0*	0*	6000*
Roach	9710	1.0	10.6	11.2	9	9	95
Tower	10610	34.8	45.9	46.2	76	75	99
Whiskey Park	8950	13.9	29.3	23.6	47	59	124
Willow Creek Pass	9520	8.5	13.4	11.3	63	75	119
Zirkel	9320	0.3	11.2	11.6₍₁₈₎	3	3	97
Basin Index (%)		55				64	117
YAMPA AND WHITE RIVER BASINS
Battle Mountain	7460	0.1	0.0	0.0	*	*	*
Bear River	9100	0.1	5.2	5.8₍₁₆₎	2	2	90
Bison Lake	10950	10.5	24.6	25.4	43	41	97
Buffalo Park	9240	2.6	9.4	7.5₍₂₅₎	28	35	125
Burro Mountain	9290	0.3	0.2	2.6	150	12	8
Columbine	9170	0.4	8.5	4.8	5	8	177
Crosho	8960	0.2	0.1	0.0	200*	*	*
Divide Peak	8700	0.0	10.7	7.5	0	0	143
Dry Lake	8240	0.1	10.4	1.6	1*	6*	650*
Elk River	8710	0.1	0.9	0.6	11*	17*	150*
Elkhead Divide	8780	0.1	11.0	N/A	1	*	*
Little Snake River	8930	6.4	19.8	14.5₍₁₆₎	32	44	137
Lost Dog	9340	2.9	16.6	11.0₍₂₂₎	17	26	151
Lynx Pass	8910	0.2	0.0	0.0	*	*	*
Old Battle	9850	25.3	35.3	34.7	72	73	102
Rabbit Ears	9390	8.2	20.6	17.2	40	48	120
Ripple Creek	10340	13.3	25.9	22.0	51	60	118
Sage Creek Basin	7830	0.0	0.0	0.0₍₁₉₎	*	*	*
Sandstone RS	8150	0.2	0.1	0.0	200*	*	*
Tower	10610	34.8	45.9	46.2	76	75	99
Trapper Lake	9750	0.1	0.1	N/A	100	*	*
Whiskey Park	8950	13.9	29.3	23.6	47	59	124
Basin Index (%)		44				53	117
ARKANSAS RIVER BASIN
Apishapa	10000	0.0	0.2	0.0	0*	*	*
Brumley	10570	0.0	8.3	2.9	0	0	286
Fremont Pass	11310	17.6	22.0	18.7	80	94	118
Glen Cove	11410	-M	7.2	1.0₍₁₆₎	*	*	720
Hayden Pass	10700	0.0	9.1	9.4₍₁₃₎	0	0	97
Medano Pass	9650	0.0	0.0	0.0₍₂₅₎	*	*	*
Porphyry Creek	10790	6.2	15.4	7.1	40	87	217
Saint Elmo	10420	0.0	1.9	0.6₍₁₃₎	0*	0*	317*
South Colony	10790	0.4	10.0	13.4₍₂₉₎	4	3	75
Ute Creek	10730	0.1	0.7	0.8₍₂₀₎	14*	12*	88*
Whiskey Ck	10260	0.0	0.1	0.0	0*	*	*
Basin Index (%)		36				46*	139
UPPER RIO GRANDE BASIN
Beartown	11600	0.0	8.0	6.6	0	0	121
Cochetopa Pass	10020	0.0	0.0	0.0₍₁₆₎	*	*	*
Culebra #2	10570	0.0	0.0	0.0	*	*	*
Cumbres Trestle	10030	0.2	2.3	8.0	9	2	29
Elwood Pass	11680	4.2	-M	N/A	*	*	*
Grayback	11620	0.2	0.0	N/A	*	*	*
Hayden Pass	10700	0.0	9.1	9.4₍₁₃₎	0	0	97
Lily Pond	11060	0.0	0.0	0.4	*	0*	0*
Medano Pass	9650	0.0	0.0	0.0₍₂₅₎	*	*	*
Middle Creek	11260	3.2	7.5	9.8	43	33	77
Moon Pass	11110	0.0	0.0	0.0₍₁₂₎	*	*	*
North Costilla	10570	0.3	0.0	0.0	*	*	*
Rat Creek	11680	0.8	-M	N/A	*	*	*
San Antonio Sink	9120	0.0	0.0	N/A	*	*	*
Sargents Mesa	11490	0.0	7.2	6.8₍₁₂₎	0	0	106
Shuree	10080	0.0	0.0	0.0₍₁₀₎	*	*	*
Slumgullion	11560	0.0	1.4	6.9	0	0	20
Trinchera	10850	0.0	0.8	0.0	0*	*	*
Upper Rio Grande	9370	0.0	0.0	0.0	*	*	*
Ute Creek	10730	0.1	0.7	0.8₍₂₀₎	14*	12*	88*
Wager Gulch	11110	0.1	0.0	N/A	*	*	*
Wolf Creek Summit	10930	5.1	13.8	28.6	37	18	48
Basin Index (%)		18				12*	66*
SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASINS
Beartown	11600	0.0	8.0	6.6	0	0	121
Black Mesa	11580	15.4	20.6	N/A	75	*	*
Cascade	8900	-M	-M	0.0	*	*	*
Cascade #2	8990	0.0	0.0	0.0	*	*	*
Columbine Pass	9160	0.0	0.0	0.0	*	*	*
Columbus Basin	10780	6.5	15.6	16.4₍₂₆₎	42	40	95
El Diente Peak	10210	-M	0.0	0.0	*	*	*
Elwood Pass	11680	4.2	-M	N/A	*	*	*
Lizard Head Pass	10190	0.0	0.0	1.2	*	0*	0*
Lone Cone	9730	0.0	0.0	0.0	*	*	*
Mancos	10020	0.0	0.0	0.0₍₂₆₎	*	*	*
Mineral Creek	10030	0.1	0.0	1.0	*	10*	0*
Molas Lake	10610	0.0	0.1	3.9	0	0	3
Red Mountain Pass	11050	13.5	18.0	17.8	75	76	101
Scotch Creek	9160	0.0	0.0	0.0	*	*	*
Sharkstooth	10730	0.0	0.2	8.0₍₁₆₎	0	0	2
Spud Mountain	10660	0.1	3.2	7.7	3	1	42
Stump Lakes	11230	0.0	8.0	12.4	0	0	65
Upper San Juan	10140	0.0	-M	16.1	*	0	*
Vallecito	10740	0.1	0.0	0.0	*	*	*
Weminuche Creek	10730	0.0	0.0	0.0₍₁₀₎	*	*	*
Wolf Creek Summit	10930	5.1	13.8	28.6	37	18	48
Basin Index (%)		47				21*	65*

-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 represents the depth of water in the snowpack, if the
snowpack were melted, expressed in inches.

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.