Wyoming SNOTEL Snow/Precipitation Update Report

Wyoming 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 Wednesday, December 31, 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
SNAKE RIVER
Base Camp	7040	7.8	7.4	105	14.4	9.9	145
Blind Bull Sum	8880	14.7	9.5	155	11.2	8.4	133
Cottonwood Creek	7710	9.9	8.5	116	16.0	10.8	148
East Rim Divide	8010	4.4	4.4	100	7.4	5.3	140
Grand Targhee	9260	-M	19.8₍₁₄₎	*	-M	16.0₍₁₄₎	*
Granite Creek	6770	6.7	6.3	106	13.0	8.9	146
Grassy Lake	7330	8.2	12.2	67	17.2	16.4	105
Gros Ventre Summit	8760	8.3	6.2	134	10.4	6.0	173
Gunsight Pass	9820	8.6	5.9₍₂₂₎	146	10.9	6.8₍₂₂₎	160
Lewis Lake Divide	7880	16.4	12.7	129	22.9	15.8	145
Loomis Park	8240	7.2	6.4	112	10.0	7.6	132
Phillips Bench	8170	11.9	10.2	117	16.5	12.4	133
Salt River Summit	7630	5.5	4.8	115	9.9	7.0	141
Snake River Station	6900	5.7	6.8	84	12.9	10.6	122
Somsen Ranch	6830	3.2	4.8	67	10.7	8.1	132
Spring Creek Divide	9020	12.4	10.0	124	15.3	10.4	147
Thumb Divide	7970	10.0	6.4	156	13.4	8.4	160
Togwotee Pass	9590	13.4	10.6	126	17.7	11.2	158
Triple Peak	8520	14.3	8.6	166	17.9	10.8	166
Two Ocean Plateau	9240	19.7	13.2	149	18.0	12.3	146
Willow Creek	8060	11.7	10.8	108	18.8	15.0	125
Younts Peak	8340	9.9	6.6₍₂₈₎	150	15.0	7.2₍₂₈₎	208
Basin Index (%)		122			143
MADISON HEADWATERS IN WYOMING
Black Bear	8160	14.3	16.0	89	19.2	17.8	108
Canyon	7870	6.2	5.6	111	10.1	7.4	136
Madison Plateau	7710	8.5	9.8	87	14.9	11.8	126
West Yellowstone	6680	3.4	4.6	74	9.8	7.3₍₂₂₎	134
Whiskey Creek	6790	5.2	6.0	87	13.4	9.3	144
Basin Index (%)		90			126
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake	9360	14.2	9.8	145	16.0	9.2	174
Canyon	7870	6.2	5.6	111	10.1	7.4	136
Evening Star	9030	18.6	12.2	152	23.1	14.3	162
Fisher Creek	9110	21.5	15.3	141	23.8	15.4	155
Monument Peak	8740	13.1	9.0	146	16.5	10.7	154
Northeast Entrance	7420	4.6	4.0	115	10.9	6.4	170
Parker Peak	9420	14.6	10.4	140	16.1	9.8	164
Sylvan Lake	8440	9.2	8.6	107	15.7	11.6	135
Thumb Divide	7970	10.0	6.4	156	13.4	8.4	160
Two Ocean Plateau	9240	19.7	13.2	149	18.0	12.3	146
White Mill	8730	16.0	10.2	157	16.8	11.0	153
Wolverine	7660	6.1	5.4	113	11.7	6.1	192
Basin Index (%)		140			157
WIND RIVER
Burroughs Creek	8760	6.0	N/A	*	12.2	N/A	*
Castle Creek	8410	3.0	3.3₍₁₀₎	91	5.1	4.4₍₁₀₎	116
Cold Springs	9640	4.6	3.6	128	9.1	4.8	190
Deer Park	9690	8.2	6.2₍₂₂₎	132	9.8	8.4₍₂₃₎	117
Hobbs Park	10080	7.6	6.2	123	9.1	6.1	149
Kirwin	9580	8.5	5.6	152	12.6	6.2	203
Little Warm	9370	6.5	4.4	148	10.0	6.0	167
South Pass	9040	6.8	6.0	113	8.4	7.0	120
St. Lawrence Alt	8610	2.0	N/A	*	5.5	N/A	*
Togwotee Pass	9590	13.4	10.6	126	17.7	11.2	158
Townsend Creek	8720	2.8	4.0	70	6.3	5.6	112
Basin Index (%)		123			148
BIGHORN BASIN
Bald Mtn.	9360	9.3	8.7	107	10.8	7.8	138
Bear Trap Meadow	8200	2.6	2.9	90	6.6	4.2	157
Bone Springs Div	9340	7.2	7.4	97	7.7	7.1	108
Grave Springs	8560	1.8	3.2₍₂₈₎	56	5.6	4.6₍₂₈₎	122
Kirwin	9580	8.5	5.6	152	12.6	6.2	203
Marquette	8800	1.1	3.5	31	4.4	4.8	92
Middle Powder	7760	2.6	4.3	60	6.8	5.0	136
Owl Creek	8990	0.9	2.6	35	3.8	3.2	119
Powder River Pass	9480	7.0	5.0	140	10.7	6.2	173
Shell Creek	9570	7.4	7.2	103	9.6	6.6	145
Timber Creek	7910	0.2	2.2	9	3.0	4.0	75
Basin Index (%)		92			137
SHOSHONE RIVER
Blackwater	9830	14.4	11.0	131	16.3	10.5	155
Evening Star	9030	18.6	12.2	152	23.1	14.3	162
Marquette	8800	1.1	3.5	31	4.4	4.8	92
Sylvan Lake	8440	9.2	8.6	107	15.7	11.6	135
Sylvan Road	7140	4.7	5.7	82	12.5	8.9	140
Younts Peak	8340	9.9	6.6₍₂₈₎	150	15.0	7.2₍₂₈₎	208
Basin Index (%)		122			152
POWDER RIVER
Bear Trap Meadow	8200	2.6	2.9	90	6.6	4.2	157
Cloud Peak Reservoir	9830	6.6	6.4	103	8.3	6.4	130
Grave Springs	8560	1.8	3.2₍₂₈₎	56	5.6	4.6₍₂₈₎	122
Hansen Sawmill	8360	2.7	3.0	90	7.6	4.2	181
Middle Powder	7760	2.6	4.3	60	6.8	5.0	136
Powder River Pass	9480	7.0	5.0	140	10.7	6.2	173
Soldier Park	8680	1.1	2.4₍₁₀₎	46	4.9	4.4₍₁₀₎	111
Basin Index (%)		90			144
TONGUE RIVER
Big Goose	8010	1.8	3.5₍₂₂₎	51	5.8	5.0₍₂₂₎	116
Bone Springs Div	9340	7.2	7.4	97	7.7	7.1	108
Burgess Junction	7910	3.0	4.5	67	6.3	5.6	112
Dome Lake	8890	3.7	4.8	77	7.9	5.8	136
Little Goose	8560	3.1	4.4₍₁₀₎	70	7.0	5.6₍₁₀₎	125
Sucker Creek	8840	3.9	5.2	75	7.7	6.2	124
Tie Creek	7050	0.1	2.0₍₂₆₎	5	5.4	5.0₍₂₆₎	108
Basin Index (%)		72			119
BELLE FOURCHE
Blind Park	6900	2.4	3.2	75	7.9	4.8	165
Cole Canyon	5930	1.0	2.4₍₂₀₎	42	7.4	4.0₍₂₀₎	185
North Rapid Creek	6150	1.3	3.2₍₂₄₎	41	5.7	3.8₍₂₄₎	150
Basin Index (%)		53			167
CHEYENNE RIVER BASIN
Blind Park	6900	2.4	3.2	75	7.9	4.8	165
North Rapid Creek	6150	1.3	3.2₍₂₄₎	41	5.7	3.8₍₂₄₎	150
Basin Index (%)		58			158
UPPER N. PLATTE
Arapaho Ridge	10960	6.0	9.8₍₁₈₎	61	7.6	10.2₍₁₈₎	75
Blackhall Mtn	9830	8.5	12.2₍₁₁₎	70	11.5	13.6₍₁₁₎	85
Cinnabar Park	9670	6.7	8.6₍₁₇₎	78	9.8	10.8₍₁₇₎	91
Columbine	9170	7.3	8.6	85	9.3	10.4	89
Divide Peak	8700	4.0	7.6	53	7.8	9.9	79
Joe Wright	10140	4.5	8.2	55	9.7	11.3	86
Laprele Creek	8370	1.8	3.6	50	5.8	5.4	107
Med Bow	10500	14.0	N/A	*	15.5	N/A	*
Never Summer	10300	5.5	8.4₍₁₈₎	65	3.9	8.2₍₁₈₎	48
North French Creek	10150	10.9	11.5	95	12.8	11.9	108
Old Battle	9840	10.4	12.2	85	15.6	14.2	110
Rawah	9100	2.6	4.8₍₁₈₎	54	5.1	7.6₍₁₈₎	67
Sage Creek Basin	7830	2.4	5.3₍₁₉₎	45	5.3	6.3₍₁₉₎	84
Sand Lake	10080	8.9	11.4	78	11.0	10.6	104
South Brush Creek	8480	3.3	4.6	72	5.6	6.0	93
Tower	10610	12.8	16.6	77	15.1	16.8	90
Webber Springs	9250	7.4	9.0	82	10.8	11.1	97
Whiskey Park	8950	9.3	9.8	95	14.3	12.4	115
Willow Creek Pass	9520	2.4	5.8	41	4.4	6.6	67
Zirkel	9320	10.0	10.6₍₁₈₎	94	14.2	13.1₍₁₈₎	108
Basin Index (%)		74			91
SWEETWATER
Deer Park	9690	8.2	6.2₍₂₂₎	132	9.8	8.4₍₂₃₎	117
Larsen Creek	8880	2.7	2.9₍₁₀₎	93	6.5	5.8₍₁₀₎	112
South Pass	9040	6.8	6.0	113	8.4	7.0	120
Basin Index (%)		117			117
LOWER N. PLATTE
Casper Mtn.	7940	0.9	5.4	17	4.6	6.6	70
Laprele Creek	8370	1.8	3.6	50	5.8	5.4	107
Reno Hill	8410	1.6	5.8	28	5.3	6.6	80
Windy Peak	7890	0.5	3.0	17	4.6	4.7	98
Basin Index (%)		27			87
LARAMIE RIVER
Brooklyn Lake	10250	7.6	8.4	90	10.4	8.9	117
Cinnabar Park	9670	6.7	8.6₍₁₇₎	78	9.8	10.8₍₁₇₎	91
Crow Creek	8320	0.2	3.8₍₁₇₎	5	3.2	5.2₍₁₇₎	62
Deadman Hill	10240	6.1	7.7	79	6.1	8.0	76
Rawah	9100	2.6	4.8₍₁₈₎	54	5.1	7.6₍₁₈₎	67
Roach	9710	4.2	6.6	64	6.8	8.9	76
Windy Peak	7890	0.5	3.0	17	4.6	4.7	98
Basin Index (%)		65			85
S. PLATTE
Crow Creek	8320	0.2	3.8₍₁₇₎	5	3.2	5.2₍₁₇₎	62
Basin Index (%)		5			62
LITTLE SNAKE RIVER
Battle Mountain	7460	1.4	4.2	33	7.2	6.6	109
Divide Peak	8700	4.0	7.6	53	7.8	9.9	79
Elk River	8710	5.4	6.5	83	9.4	8.6	109
Elkhead Divide	8780	4.1	N/A	*	8.7	N/A	*
Little Snake River	8930	8.5	10.0₍₁₆₎	85	14.0	15.0₍₁₆₎	93
Old Battle	9840	10.4	12.2	85	15.6	14.2	110
Sage Creek Basin	7830	2.4	5.3₍₁₉₎	45	5.3	6.3₍₁₉₎	84
Sandstone RS	8150	3.6	4.9	73	7.3	7.8	94
Whiskey Park	8950	9.3	9.8	95	14.3	12.4	115
Basin Index (%)		74			100
UPPER GREEN RIVER
Big Sandy Opening	9100	5.6	5.9	95	6.1	5.9	103
Blind Bull Sum	8880	14.7	9.5	155	11.2	8.4	133
East Rim Divide	8010	4.4	4.4	100	7.4	5.3	140
Elkhart Park G.S.	9410	6.4	5.8	110	7.9	6.3	125
Gros Ventre Summit	8760	8.3	6.2	134	10.4	6.0	173
Gunsight Pass	9820	8.6	5.9₍₂₂₎	146	10.9	6.8₍₂₂₎	160
Indian Creek	9400	11.3	9.9	114	12.2	9.2	133
Kendall R.S.	7790	6.8	5.2	131	10.7	6.7	160
Larsen Creek	8880	2.7	2.9₍₁₀₎	93	6.5	5.8₍₁₀₎	112
Loomis Park	8240	7.2	6.4	112	10.0	7.6	132
New Fork Lake	8380	5.4	4.6	117	8.4	5.2	162
Pocket Creek	9370	-M	N/A	*	-M	N/A	*
Snider Basin	8080	5.0	5.0	100	9.2	6.4	144
Spring Creek Divide	9020	12.4	10.0	124	15.3	10.4	147
Triple Peak	8520	14.3	8.6	166	17.9	10.8	166
Basin Index (%)		125			143
LOWER GREEN RIVER
Blacks Fork Jct	8880	3.9	3.3₍₁₀₎	118	6.1	5.8₍₁₀₎	105
Buck Pasture	9630	6.4	N/A	*	8.6	N/A	*
EF Blacks Fork GS	9360	2.4	4.0₍₁₀₎	60	6.0	5.2₍₁₀₎	115
Hams Fork	7860	5.1	4.6	111	7.4	5.2	142
Henrys Fork	10180	-M	N/A	*	6.8	N/A	*
Hewinta	9510	2.5	3.8	66	6.6	6.6	100
Hickerson Park	9120	2.4	3.0	80	5.0	4.9	102
Hole-in-Rock	9170	1.6	2.9	55	5.7	4.9	116
Indian Creek	9400	11.3	9.9	114	12.2	9.2	133
Kelley R.S.	8240	5.9	6.0	98	10.4	7.8	133
Spirit Lk	10240	6.0	5.2₍₁₁₎	115	9.4	7.8₍₁₁₎	121
Steel Creek Park	10140	6.1	6.0	102	8.2	7.3	112
Basin Index (%)		97			119
UPPER BEAR RIVER
Bear River RS	8510	2.1	3.6₍₁₀₎	58	5.6	5.3₍₁₀₎	106
Bug Lake	7980	5.6	6.4	88	11.3	8.0	141
Burts Miller Ranch	7900	0.8	2.3₍₁₁₎	35	5.4	3.7₍₁₁₎	146
Chalk Creek #1	9160	5.2	8.8	59	9.5	10.2	93
Giveout	6940	2.7	3.2	84	8.7	5.8	150
Hayden Fork	9170	4.3	5.6	77	9.6	8.8	109
Kelley R.S.	8240	5.9	6.0	98	10.4	7.8	133
Lily Lake	9130	3.3	4.8	69	6.5	7.2	90
Monte Cristo	8930	6.7	9.8	68	12.7	11.0	115
Salt River Summit	7630	5.5	4.8	115	9.9	7.0	141
Spring Creek Divide	9020	12.4	10.0	124	15.3	10.4	147
Trial Lake	9970	8.1	8.4	96	9.5	9.6	99
Basin Index (%)		85			121

-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.