Colorado SNOTEL Snow/Precipitation Update Report

Colorado SNOTEL Snow/Precipitation 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 Tuesday, April 15, 2025

Basin Site Name	Elev (ft)	Snow Water Equivalent			Water Year-to-Date Precipitation
Basin Site Name	Elev (ft)	Current (in)	Median (in)	Pct of Median	Current (in)	Median (in)	Pct of Median
GUNNISON RIVER BASIN
Butte	10190	10.9	13.0	84	15.0	15.4	97
Castle Peak	11500	24.1	N/A	*	26.9	N/A	*
Cochetopa Pass	10020	0.3	0.8₍₁₆₎	38	6.2	7.9₍₁₆₎	78
Columbine Pass	9160	0.6	12.5	5	16.4	23.4	70
Idarado	9780	8.6	12.5	69	18.8	20.4	92
Mc Clure Pass	8760	4.5	13.8	33	15.7	20.2	78
Mesa Lakes	10160	10.9	17.4	63	18.2	21.8	83
Overland Res.	9890	1.9	9.4	20	11.0	16.4	67
Park Cone	9600	7.7	9.6	80	12.0	11.2	107
Park Reservoir	9990	14.0	25.6	55	17.0	26.6	64
Porphyry Creek	10790	14.6	15.2	96	19.2	16.1	119
Rat Creek	11680	9.8	N/A	*	13.9	N/A	*
Red Mountain Pass	11050	19.7	23.4	84	24.7	27.2	91
Sargents Mesa	11490	6.3	10.0₍₁₂₎	63	9.7	13.1₍₁₂₎	74
Schofield Pass	10640	24.7	33.0	75	27.1	31.0	87
Slumgullion	11560	8.5	14.3	59	12.4	14.3	87
Upper Taylor	10710	8.1	11.5₍₁₁₎	70	17.3	16.0₍₁₁₎	108
Wager Gulch	11110	8.6	N/A	*	13.9	N/A	*
Basin Index (%)		64			86
UPPER COLORADO RIVER BASIN
Arapaho Ridge	10960	20.6	23.0₍₁₈₎	90	20.9	22.6₍₁₈₎	92
Bear River	9100	8.7	11.2₍₁₆₎	78	12.2	14.2₍₁₆₎	86
Beaver Ck Village	8530	8.4	8.9₍₁₇₎	94	14.8	15.2₍₁₇₎	97
Berthoud Summit	11300	21.2	20.4	104	26.4	24.1	110
Bison Lake	10950	19.0	25.4	75	20.8	26.8	78
Buffalo Park	9240	12.5	13.7₍₂₅₎	91	15.2	16.5₍₂₅₎	92
Castle Peak	11500	24.1	N/A	*	26.9	N/A	*
Chapman Tunnel	10090	10.6	14.2₍₁₃₎	75	14.8	18.4₍₁₃₎	80
Columbine	9170	20.6	20.9	99	27.3	26.0	105
Copper Mountain	10500	15.0	15.4	97	16.9	16.8	101
Elliot Ridge	10550	20.2	19.8₍₁₁₎	102	17.5	N/A	*
Fool Creek	11130	21.3	N/A	*	21.3	N/A	*
Fremont Pass	11310	17.7	17.4	102	17.4	16.4	106
Grizzly Peak	11110	19.3	18.1	107	19.6	18.2	108
High Lonesome	10630	18.4	N/A	*	20.2	N/A	*
Hoosier Pass	11600	13.5	15.9	85	13.2	16.4	80
Independence Pass	10570	14.1	16.2	87	16.5	17.8	93
Ivanhoe	10540	16.8	15.3₍₂₉₎	110	19.7	20.8₍₂₉₎	95
Jones Pass	10420	13.8	15.2₍₂₁₎	91	21.3	20.5₍₂₁₎	104
Kiln	9610	8.0	10.8	74	13.5	14.8	91
Lake Irene	10680	23.4	23.6	99	22.3	21.6	103
Lynx Pass	8910	3.2	9.8	33	12.0	12.8	94
Mc Clure Pass	8760	4.5	13.8	33	15.7	20.2	78
Mccoy Park	9500	9.8	11.4₍₁₈₎	86	18.2	17.6₍₁₈₎	103
Mesa Lakes	10160	10.9	17.4	63	18.2	21.8	83
Middle Fork Camp	8960	5.3	9.4₍₁₉₎	56	14.3	15.4₍₁₉₎	93
Nast Lake	8710	0.2	3.4	6	11.1	12.1	92
North Lost Trail	9190	9.7	14.2	68	18.7	22.7	82
Overland Res.	9890	1.9	9.4	20	11.0	16.4	67
Park Reservoir	9990	14.0	25.6	55	17.0	26.6	64
Phantom Valley	9030	7.6	8.0	95	13.3	14.2	94
Schofield Pass	10640	24.7	33.0	75	27.1	31.0	87
Stillwater Creek	8760	1.3	N/A	*	12.4	10.8	115
Summit Ranch	9350	6.8	10.6	64	14.3	13.4	107
Vail Mountain	10290	12.2	19.2	64	19.2	21.2	91
Willow Creek Pass	9520	13.5	14.3	94	13.5	14.4	94
Basin Index (%)		81			92
SOUTH PLATTE RIVER BASIN
Bear Lake	9490	17.2	18.1	95	16.8	19.3	87
Berthoud Summit	11300	21.2	20.4	104	26.4	24.1	110
Black Mountain	8950	9.2	10.6₍₁₀₎	87	12.2	14.3₍₁₀₎	85
Buckskin Joe	11160	8.6	10.7₍₂₁₎	80	11.6	14.0₍₂₁₎	83
Copeland Lake	8570	0.1	0.0	*	12.4	14.0	89
Deadman Hill	10240	18.5	16.6	111	18.5	18.7	99
Echo Lake	10660	7.3	7.7₍₂₂₎	95	10.8	11.6₍₂₂₎	93
Hoosier Pass	11600	13.5	15.9	85	13.2	16.4	80
Hourglass Lake	9380	7.1	12.2₍₁₂₎	58	13.5	14.4₍₁₂₎	94
Jackwhacker Gulch	11030	10.5	12.3₍₂₂₎	85	17.9	17.5₍₂₂₎	102
Joe Wright	10140	22.5	21.8	103	28.7	26.6	108
Lake Eldora	9700	8.0	10.4	77	16.7	17.2	97
Lake Irene	10680	23.4	23.6	99	22.3	21.6	103
Long Draw Resv	9990	16.4	16.3₍₁₁₎	101	18.6	20.3₍₁₁₎	92
Loveland Basin	11410	19.7	20.0₍₂₈₎	98	18.9	19.0₍₂₈₎	99
Michigan Creek	10700	8.9	10.6₍₂₂₎	84	13.2	15.8₍₂₂₎	84
Niwot	9940	11.1	11.6	96	15.5	16.4	95
Rough And Tumble	10420	4.8	6.1₍₂₂₎	79	7.5	8.7₍₂₂₎	86
Sawtooth	9640	24.7	N/A	*	28.6	N/A	*
University Camp	10330	15.7	16.8	93	19.8	20.8	95
Wild Basin	9410	14.3	15.9₍₁₅₎	90	16.6	17.2₍₁₅₎	97
Willow Park	10710	17.9	18.3	98	21.6	22.5	96
Basin Index (%)		93			95
LARAMIE AND NORTH PLATTE RIVER BASINS
Arapaho Ridge	10960	20.6	23.0₍₁₈₎	90	20.9	22.6₍₁₈₎	92
Blackhall Mtn	9830	28.8	31.2₍₁₁₎	92	31.1	30.6₍₁₁₎	102
Columbine	9170	20.6	20.9	99	27.3	26.0	105
Deadman Hill	10240	18.5	16.6	111	18.5	18.7	99
Joe Wright	10140	22.5	21.8	103	28.7	26.6	108
Never Summer	10300	21.0	20.8₍₁₈₎	101	17.3	18.0₍₁₈₎	96
Rawah	9100	8.3	10.2₍₁₈₎	81	14.8	16.4₍₁₈₎	90
Roach	9710	12.5	15.8	79	17.4	20.0	87
Tower	10610	42.8	44.4	96	43.0	41.0	105
Whiskey Park	8950	26.2	26.6	98	29.1	28.4	102
Willow Creek Pass	9520	13.5	14.3	94	13.5	14.4	94
Zirkel	9320	20.0	25.4₍₁₈₎	79	30.8	31.6₍₁₈₎	97
Basin Index (%)		94			99
YAMPA AND WHITE RIVER BASINS
Battle Mountain	7460	3.6	7.5	48	16.0	16.0	100
Bear River	9100	8.7	11.2₍₁₆₎	78	12.2	14.2₍₁₆₎	86
Bison Lake	10950	19.0	25.4	75	20.8	26.8	78
Buffalo Park	9240	12.5	13.7₍₂₅₎	91	15.2	16.5₍₂₅₎	92
Burro Mountain	9290	10.3	14.9	69	20.6	19.8	104
Columbine	9170	20.6	20.9	99	27.3	26.0	105
Crosho	8960	7.9	10.0	79	17.8	15.6	114
Divide Peak	8700	14.4	19.8	73	20.1	22.0	91
Dry Lake	8240	17.7	18.5	96	26.1	25.0	104
Elk River	8710	12.2	16.4	74	19.7	20.0	98
Elkhead Divide	8780	13.1	N/A	*	19.0	N/A	*
Little Snake River	8930	21.5	25.6₍₁₆₎	84	31.1	33.1₍₁₆₎	94
Lost Dog	9340	18.3	22.4₍₂₂₎	82	23.2	23.8₍₂₂₎	97
Lynx Pass	8910	3.2	9.8	33	12.0	12.8	94
Old Battle	9850	30.0	32.6	92	29.4	35.4	83
Rabbit Ears	9390	23.8	24.3	98	33.5	30.8	109
Ripple Creek	10340	22.8	26.3	87	24.8	26.6	93
Sage Creek Basin	7830	5.3	10.0₍₁₉₎	53	12.5	13.5₍₁₉₎	93
Sandstone RS	8150	9.0	11.9	76	15.0	18.4	82
Tower	10610	42.8	44.4	96	43.0	41.0	105
Trapper Lake	9750	6.1	N/A	*	17.7	19.9	89
Whiskey Park	8950	26.2	26.6	98	29.1	28.4	102
Basin Index (%)		84			96
ARKANSAS RIVER BASIN
Apishapa	10000	0.4	2.9	14	12.6	14.2	89
Brumley	10570	8.5	11.0	77	12.2	13.8	88
Fremont Pass	11310	17.7	17.4	102	17.4	16.4	106
Glen Cove	11410	-M	4.5₍₁₆₎	*	-M	11.5₍₁₆₎	*
Hayden Pass	10700	1.9	12.5₍₁₃₎	15	10.0	13.4₍₁₃₎	75
Medano Pass	9650	0.1	0.2₍₂₅₎	50*	10.5	12.6₍₂₅₎	83
Porphyry Creek	10790	14.6	15.2	96	19.2	16.1	119
Saint Elmo	10420	5.4	10.1₍₁₃₎	53	12.0	13.2₍₁₃₎	91
South Colony	10790	9.0	19.6₍₂₉₎	46	14.8	22.7₍₂₉₎	65
Ute Creek	10730	0.0	11.3₍₂₀₎	0	11.8	16.3₍₂₀₎	72
Whiskey Ck	10260	0.0	9.6	0	12.2	16.2	75
Basin Index (%)		52			86
UPPER RIO GRANDE BASIN
Beartown	11600	14.1	21.0	67	20.9	24.2	86
Cochetopa Pass	10020	0.3	0.8₍₁₆₎	38	6.2	7.9₍₁₆₎	78
Culebra #2	10570	4.6	13.0	35	10.4	13.9	75
Cumbres Trestle	10030	11.1	23.1	48	16.0	25.2	63
Elwood Pass	11680	13.2	N/A	*	20.5	N/A	*
Grayback	11620	0.1	N/A	*	13.4	17.8₍₁₆₎	75
Hayden Pass	10700	1.9	12.5₍₁₃₎	15	10.0	13.4₍₁₃₎	75
Lily Pond	11060	0.0	11.8	0	14.1	19.4	73
Medano Pass	9650	0.1	0.2₍₂₅₎	50*	10.5	12.6₍₂₅₎	83
Middle Creek	11260	12.0	18.1	66	15.5	23.5	66
Moon Pass	11110	1.5	5.7₍₁₂₎	26	8.4	8.6₍₁₂₎	98
North Costilla	10570	0.0	3.4	0	12.4	13.8	90
Rat Creek	11680	9.8	N/A	*	13.9	N/A	*
San Antonio Sink	9120	0.1	N/A	*	10.8	N/A	*
Sargents Mesa	11490	6.3	10.0₍₁₂₎	63	9.7	13.1₍₁₂₎	74
Shuree	10080	0.0	0.0₍₁₀₎	*	9.7	9.7₍₁₀₎	100
Slumgullion	11560	8.5	14.3	59	12.4	14.3	87
Trinchera	10850	3.8	9.7	39	10.5	12.3	85
Upper Rio Grande	9370	0.0	1.6	0	9.6	10.0	96
Ute Creek	10730	0.0	11.3₍₂₀₎	0	11.8	16.3₍₂₀₎	72
Wager Gulch	11110	8.6	N/A	*	13.9	N/A	*
Wolf Creek Summit	10930	15.7	31.6	50	18.7	33.4	56
Basin Index (%)		42			76
SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASINS
Beartown	11600	14.1	21.0	67	20.9	24.2	86
Black Mesa	11580	17.0	N/A	*	21.0	N/A	*
Cascade	8900	-M	2.8	*	-M	20.0	*
Cascade #2	8990	0.1	0.0	*	14.2	19.0	75
Columbine Pass	9160	0.6	12.5	5	16.4	23.4	70
Columbus Basin	10780	15.2	23.9₍₂₆₎	64	21.0	27.7₍₂₆₎	76
El Diente Peak	10210	-M	12.2	*	18.4	19.8	93
Elwood Pass	11680	13.2	N/A	*	20.5	N/A	*
Lizard Head Pass	10190	9.8	14.1	70	14.9	16.2	92
Lone Cone	9730	1.2	11.0	11	16.8	19.7	85
Mancos	10020	2.2	10.3₍₂₆₎	21	12.8	17.6₍₂₆₎	73
Mineral Creek	10030	8.0	14.2	56	17.2	18.2	95
Molas Lake	10610	10.1	20.7	49	17.4	20.5	85
Red Mountain Pass	11050	19.7	23.4	84	24.7	27.2	91
Scotch Creek	9160	0.1	5.8	2	15.9	17.4	91
Sharkstooth	10730	6.2	16.8₍₁₆₎	37	16.5	21.6₍₁₆₎	76
Spud Mountain	10660	7.7	21.8	35	21.3	30.0	71
Stump Lakes	11230	11.0	17.6	62	16.2	19.6	83
Upper San Juan	10140	7.5	28.6	26	18.8	34.8	54
Vallecito	10740	4.2	13.2	32	13.4	18.4	73
Weminuche Creek	10730	2.6	11.8₍₁₀₎	22	16.1	22.0₍₁₀₎	73
Wolf Creek Summit	10930	15.7	31.6	50	18.7	33.4	56
Basin Index (%)		46			77

-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.

If the Basin Index (%) percent value is flagged as potentially invalid,
care should be taken to evaluate if the value is representative
of conditions in the basin.

The SNOW WATER EQUIVALENT represents the depth of water in the snowpack, if the
snowpack were melted, expressed in inches.

The WATER YEAR-TO-DATE-PRECIPITATION represents total precipitation since October 1st, 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.