Colorado SNOTEL Snowpack Update Report

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 Monday, March 23, 2026

Basin Site Name	Elev (ft)	Snow Water Equivalent				Percent of
Basin Site Name	Elev (ft)	Current (in)	Today's Median (in)	Median Peak (in)	Median Peak Date	Today's Median	Median Peak
GUNNISON RIVER BASIN
Butte	10190	6.8	12.2	13.7	Apr 08	56	50
Castle Peak	11510	12.3	N/A	N/A	N/A	*	*
Cochetopa Pass	10020	1.3	4.2₍₁₆₎	4.8₍₁₆₎	Mar 29₍₁₆₎	31	27
Columbine Pass	9160	3.8	15.4	18.0	Mar 26	25	21
Idarado	9780	3.6	12.0	14.4	Apr 06	30	25
Mc Clure Pass	8760	3.7	14.8	16.6	Apr 04	25	22
Mesa Lakes	10160	5.3	15.4	19.0	Apr 15	34	28
Overland Res.	9890	3.9	10.8	12.4	Apr 05	36	31
Park Cone	9600	4.4	9.4	10.4	Apr 09	47	42
Park Reservoir	9990	11.3	22.0	27.4	Apr 26	51	41
Porphyry Creek	10790	7.1	14.7	17.0	Apr 15	48	42
Rat Creek	11680	3.2	N/A	N/A	N/A	*	*
Red Mountain Pass	11060	8.5	20.3	25.0	Apr 25	42	34
Sargents Mesa	11490	4.4	10.0₍₁₂₎	11.4₍₁₂₎	Apr 13₍₁₂₎	44	39
Schofield Pass	10640	15.6	27.6	35.1	Apr 19	57	44
Slumgullion	11560	2.8	12.5	15.0	Apr 21	22	19
Upper Taylor	10710	5.6	11.8₍₁₁₎	13.6₍₁₁₎	Apr 03₍₁₁₎	47	41
Wager Gulch	11110	0.5	N/A	N/A	N/A	*	*
Basin Index (%)		41
UPPER COLORADO RIVER BASIN
Arapaho Ridge	10960	12.2	19.6₍₁₈₎	25.2₍₁₈₎	May 01₍₁₈₎	62	48
Bear River	9100	5.5	9.3₍₁₆₎	12.0₍₁₆₎	Apr 21₍₁₆₎	59	46
Beaver Ck Village	8530	3.8	10.3₍₁₇₎	11.7₍₁₇₎	Apr 02₍₁₇₎	37	32
Berthoud Summit	11300	10.6	16.8	23.2	May 03	63	46
Bison Lake	10950	11.8	21.2	26.9	Apr 29	56	44
Buffalo Park	9240	7.0	12.6₍₂₅₎	14.9₍₂₅₎	Apr 14₍₂₅₎	56	47
Castle Peak	11510	12.3	N/A	N/A	N/A	*	*
Chapman Tunnel	10090	6.8	13.0₍₁₃₎	15.4₍₁₃₎	Apr 19₍₁₃₎	52	44
Columbine	9170	11.2	21.3	24.6	Apr 05	53	46
Copper Mountain	10500	7.2	13.3	17.4	Apr 26	54	41
Elliot Ridge	10550	11.4	16.5₍₁₁₎	23.2₍₁₁₎	Apr 25₍₁₁₎	69	49
Fool Creek	11130	11.9	N/A	N/A	N/A	*	*
Fremont Pass	11310	7.2	14.4	20.8	May 11	50	35
Grizzly Peak	11110	9.2	15.8	19.6	Apr 21	58	47
High Lonesome	10630	10.8	N/A	N/A	N/A	*	*
Hoosier Pass	11600	7.4	13.7	17.3	Apr 27	54	43
Independence Pass	10570	7.4	14.8	17.4	Apr 18	50	43
Ivanhoe	10540	8.7	12.7₍₂₉₎	17.2₍₂₉₎	Apr 26₍₂₉₎	69	51
Jones Pass	10430	7.6	12.8₍₂₁₎	16.8₍₂₁₎	Apr 27₍₂₁₎	59	45
Kiln	9610	5.3	11.0	13.2	Apr 07	48	40
Lake Irene	10680	12.7	21.8	25.4	Apr 26	58	50
Lynx Pass	8910	1.0	10.4	11.5	Apr 04	10	9
Mc Clure Pass	8760	3.7	14.8	16.6	Apr 04	25	22
Mccoy Park	9500	3.9	13.0₍₁₈₎	14.6₍₁₈₎	Apr 07₍₁₈₎	30	27
Mesa Lakes	10160	5.3	15.4	19.0	Apr 15	34	28
Middle Fork Camp	8960	2.6	10.1₍₁₉₎	11.5₍₁₉₎	Apr 04₍₁₉₎	26	23
Nast Lake	8710	1.4	7.6	8.8	Mar 28	18	16
North Lost Trail	9190	7.1	16.4	17.4	Apr 04	43	41
Overland Res.	9890	3.9	10.8	12.4	Apr 05	36	31
Park Reservoir	9990	11.3	22.0	27.4	Apr 26	51	41
Phantom Valley	9030	-M	9.0	10.4	Mar 30	*	*
Schofield Pass	10640	15.6	27.6	35.1	Apr 19	57	44
Stillwater Creek	8760	0.1	N/A	N/A	N/A	*	*
Summit Ranch	9350	2.9	10.4	11.4	Apr 09	28	25
Vail Mountain	10290	6.2	17.5	20.8	Apr 27	35	30
Willow Creek Pass	9520	7.1	12.0	16.4	May 03	59	43
Basin Index (%)		49
SOUTH PLATTE RIVER BASIN
Bear Lake	9490	12.8	15.4	19.8	Apr 27	83	65
Berthoud Summit	11300	10.6	16.8	23.2	May 03	63	46
Black Mountain	8940	5.3	9.8₍₁₀₎	12.5₍₁₀₎	Apr 17₍₁₀₎	54	42
Buckskin Joe	11160	3.9	8.8₍₂₁₎	12.6₍₂₁₎	May 02₍₂₁₎	44	31
Copeland Lake	8570	0.1	2.2	6.0	Mar 08	5	2
Deadman Hill	10240	9.8	15.2	21.8	May 04	64	45
Echo Lake	10660	2.2	6.4₍₂₂₎	9.0₍₂₂₎	Apr 29₍₂₂₎	34	24
Hoosier Pass	11600	7.4	13.7	17.3	Apr 27	54	43
Hourglass Lake	9380	4.0	10.5₍₁₂₎	13.0₍₁₂₎	Apr 19₍₁₂₎	38	31
Jackwhacker Gulch	11030	6.5	11.4₍₂₂₎	14.4₍₂₂₎	Apr 25₍₂₂₎	57	45
Joe Wright	10140	9.4	18.5	24.0	May 05	51	39
Lake Eldora	9700	5.7	11.6	14.0	Apr 09	49	41
Lake Irene	10680	12.7	21.8	25.4	Apr 26	58	50
Long Draw Resv	9980	11.7	15.9₍₁₁₎	18.3₍₁₁₎	Apr 27₍₁₁₎	74	64
Loveland Basin	11410	11.0	17.4₍₂₈₎	24.4₍₂₈₎	May 02₍₂₈₎	63	45
Michigan Creek	10700	4.0	9.5₍₂₂₎	13.2₍₂₂₎	Apr 26₍₂₂₎	42	30
Niwot	9940	6.6	11.3	15.0	Apr 19	58	44
Rough And Tumble	10420	1.9	5.8₍₂₂₎	8.3₍₂₂₎	Apr 24₍₂₂₎	33	23
Sawtooth	9640	14.8	N/A	N/A	N/A	*	*
University Camp	10330	10.3	14.2	19.9	May 07	73	52
Wild Basin	9410	9.2	14.2₍₁₅₎	18.6₍₁₅₎	Apr 25₍₁₅₎	65	49
Willow Park	10710	9.4	15.4	21.0	Apr 29	61	45
Basin Index (%)		58
LARAMIE AND NORTH PLATTE RIVER BASINS
Arapaho Ridge	10960	12.2	19.6₍₁₈₎	25.2₍₁₈₎	May 01₍₁₈₎	62	48
Blackhall Mtn	9830	15.9	27.3₍₁₁₎	34.6₍₁₁₎	Apr 27₍₁₁₎	58	46
Columbine	9170	11.2	21.3	24.6	Apr 05	53	46
Deadman Hill	10240	9.8	15.2	21.8	May 04	64	45
Joe Wright	10140	9.4	18.5	24.0	May 05	51	39
Never Summer	10300	12.9	18.0₍₁₈₎	23.8₍₁₈₎	May 11₍₁₈₎	72	54
Rawah	9100	4.1	9.8₍₁₈₎	12.2₍₁₈₎	Apr 07₍₁₈₎	42	34
Roach	9710	7.2	14.2	17.5	Apr 25	51	41
Tower	10610	24.8	38.8	49.0	May 07	64	51
Whiskey Park	8950	17.9	24.8	30.8	Apr 17	72	58
Willow Creek Pass	9520	7.1	12.0	16.4	May 03	59	43
Zirkel	9320	11.6	26.0₍₁₈₎	28.5₍₁₈₎	Apr 07₍₁₈₎	45	41
Basin Index (%)		59
YAMPA AND WHITE RIVER BASINS
Battle Mountain	7460	0.1	11.1	12.6	Mar 27	1	1
Bear River	9100	5.5	9.3₍₁₆₎	12.0₍₁₆₎	Apr 21₍₁₆₎	59	46
Bison Lake	10950	11.8	21.2	26.9	Apr 29	56	44
Buffalo Park	9240	7.0	12.6₍₂₅₎	14.9₍₂₅₎	Apr 14₍₂₅₎	56	47
Burro Mountain	9290	5.1	13.3	16.6	Apr 13	38	31
Columbine	9170	11.2	21.3	24.6	Apr 05	53	46
Crosho	8960	1.8	10.7	12.6	Apr 05	17	14
Divide Peak	8700	7.1	17.7	21.4	Apr 15	40	33
Dry Lake	8240	10.1	18.8	22.3	Apr 04	54	45
Elk River	8710	7.9	16.5	19.4	Apr 05	48	41
Elkhead Divide	8780	7.8	N/A	N/A	N/A	*	*
Little Snake River	8930	14.6	24.6₍₁₆₎	29.0₍₁₆₎	Apr 09₍₁₆₎	59	50
Lost Dog	9350	11.4	21.5₍₂₂₎	24.5₍₂₂₎	Apr 10₍₂₂₎	53	47
Lynx Pass	8910	1.0	10.4	11.5	Apr 04	10	9
Old Battle	9840	20.6	26.8	38.8	May 05	77	53
Rabbit Ears	9390	9.5	22.9	27.9	Apr 21	41	34
Ripple Creek	10340	12.6	23.8	29.3	Apr 25	53	43
Sage Creek Basin	7830	0.0	11.7₍₁₉₎	14.8₍₁₉₎	Apr 03₍₁₉₎	0	0
Sandstone RS	8150	4.4	11.7	14.2	Apr 05	38	31
Tower	10610	24.8	38.8	49.0	May 07	64	51
Trapper Lake	9750	3.2	N/A	N/A	N/A	*	*
Whiskey Park	8950	17.9	24.8	30.8	Apr 17	72	58
Basin Index (%)		50
ARKANSAS RIVER BASIN
Apishapa	10000	0.0	4.6	7.6	Mar 16	0	0
Brumley	10570	4.4	9.3	11.8	Apr 19	47	37
Fremont Pass	11310	7.2	14.4	20.8	May 11	50	35
Glen Cove	11410	0.8	3.8₍₁₆₎	5.7₍₁₆₎	Apr 23₍₁₆₎	21	14
Hayden Pass	10700	3.0	13.4₍₁₃₎	16.3₍₁₃₎	Apr 18₍₁₃₎	22	18
Medano Pass	9650	0.2	3.7₍₂₅₎	7.4₍₂₅₎	Mar 09₍₂₅₎	5	3
Porphyry Creek	10790	7.1	14.7	17.0	Apr 15	48	42
Saint Elmo	10420	2.6	10.2₍₁₃₎	11.5₍₁₃₎	Apr 09₍₁₃₎	25	23
South Colony	10790	6.5	16.2₍₂₉₎	20.9₍₂₉₎	Apr 23₍₂₉₎	40	31
Ute Creek	10720	0.2	11.7₍₂₀₎	12.4₍₂₀₎	Apr 04₍₂₀₎	2	2
Whiskey Ck	10260	0.0	9.8	11.1	Apr 01	0	0
Basin Index (%)		29
UPPER RIO GRANDE BASIN
Beartown	11580	6.8	19.2	23.2	Apr 17	35	29
Cochetopa Pass	10020	1.3	4.2₍₁₆₎	4.8₍₁₆₎	Mar 29₍₁₆₎	31	27
Culebra #2	10560	4.6	12.6	14.0	Apr 05	37	33
Cumbres Trestle	10030	9.9	23.2	26.2	Apr 06	43	38
Elwood Pass	11680	10.0	N/A	N/A	N/A	*	*
Grayback	11620	0.2	N/A	N/A	N/A	*	*
Hayden Pass	10700	3.0	13.4₍₁₃₎	16.3₍₁₃₎	Apr 18₍₁₃₎	22	18
Lily Pond	11070	0.0	11.0	14.8	Apr 04	0	0
Medano Pass	9650	0.2	3.7₍₂₅₎	7.4₍₂₅₎	Mar 09₍₂₅₎	5	3
Middle Creek	11260	8.3	16.6	19.2	Apr 15	50	43
Moon Pass	11110	0.2	5.7₍₁₂₎	6.8₍₁₂₎	Apr 08₍₁₂₎	4	3
North Costilla	10570	0.0	5.1	7.0	Mar 20	0	0
Rat Creek	11680	3.2	N/A	N/A	N/A	*	*
San Antonio Sink	9120	0.0	N/A	N/A	N/A	*	*
Sargents Mesa	11490	4.4	10.0₍₁₂₎	11.4₍₁₂₎	Apr 13₍₁₂₎	44	39
Shuree	10070	0.0	2.6₍₁₀₎	6.0₍₁₀₎	Mar 08₍₁₀₎	0	0
Slumgullion	11560	2.8	12.5	15.0	Apr 21	22	19
Trinchera	10860	1.7	9.7	11.2	Apr 05	18	15
Upper Rio Grande	9370	0.2	5.2	6.6	Mar 18	4	3
Ute Creek	10720	0.2	11.7₍₂₀₎	12.4₍₂₀₎	Apr 04₍₂₀₎	2	2
Wager Gulch	11110	0.5	N/A	N/A	N/A	*	*
Wolf Creek Summit	10930	12.9	26.8	35.5	Apr 29	48	36
Basin Index (%)		29
SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASINS
Beartown	11580	6.8	19.2	23.2	Apr 17	35	29
Black Mesa	11580	12.5	N/A	N/A	N/A	*	*
Cascade	8900	-M	9.6	12.7	Mar 10	*	*
Cascade #2	8990	0.1	6.7	10.4	Mar 06	1	1
Columbine Pass	9160	3.8	15.4	18.0	Mar 26	25	21
Columbus Basin	10780	10.9	22.6₍₂₆₎	25.8₍₂₆₎	Apr 17₍₂₆₎	48	42
El Diente Peak	10210	0.0	11.8	14.6	Apr 04	0	0
Elwood Pass	11680	10.0	N/A	N/A	N/A	*	*
Lizard Head Pass	10190	2.7	13.6	15.2	Apr 05	20	18
Lone Cone	9730	5.2	14.4	15.2	Apr 01	36	34
Mancos	10020	0.0	13.6₍₂₆₎	16.3₍₂₆₎	Mar 23₍₂₆₎	0	0
Mineral Creek	10030	1.8	13.3	15.6	Apr 09	14	12
Molas Lake	10610	4.6	17.3	22.0	Apr 11	27	21
Red Mountain Pass	11060	8.5	20.3	25.0	Apr 25	42	34
Scotch Creek	9160	0.0	10.2	12.0	Mar 18	0	0
Sharkstooth	10730	4.3	17.4₍₁₆₎	18.8₍₁₆₎	Apr 12₍₁₆₎	25	23
Spud Mountain	10660	4.8	21.9	25.6	Apr 04	22	19
Stump Lakes	11230	7.0	15.2	18.8	Apr 22	46	37
Upper San Juan	10140	8.4	26.2	29.7	Apr 09	32	28
Vallecito	10740	2.2	13.7	14.8	Apr 05	16	15
Weminuche Creek	10730	1.4	15.2₍₁₀₎	16.4₍₁₀₎	Mar 28₍₁₀₎	9	9
Wolf Creek Summit	10930	12.9	26.8	35.5	Apr 29	48	36
Basin Index (%)		27

-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.