Wyoming Snow Precipitation Update
United States Natural Resources Water and Climate Center
United States Natural Resources Water and Climate Center
Department of Conservation Portland, Oregon
Agriculture Service
S N O W - P R E C I P I T A T I O N U P D A T E
Based on Mountain Data from NRCS SNOTEL Sites
As of WEDNESDAY: DECEMBER 17 , 2025
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Median Med
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WYOMING
SNAKE RIVER
Base Camp 7040 2.8 5.5 51 8.5 8.5 100
Blind Bull Sum 8880 6.7 7.7 87 5.9 6.9 86
Cottonwood Creek 7710 7.0 6.6 106 11.7 8.8 133
East Rim Divide 8010 1.8 3.2 56 4.7 4.3 109
Grand Targhee 9260 11.9 16.2 73 13.1 13.2 99
Granite Creek 6770 2.5 4.6 54 7.5 7.0 107
Grassy Lake 7330 5.5 9.3 59 11.1 11.9 93
Gros Ventre Summit 8760 3.3 4.8 69 5.5 5.2 106
Gunsight Pass 9820 4.7 4.6 102 7.5 5.8 129
Lewis Lake Divide 7880 6.9 9.4 73 13.2 12.0 110
Loomis Park 8240 3.0 4.8 62 5.7 6.1 93
Phillips Bench 8170 5.3 8.2 65 9.5 9.4 101
Salt River Summit 7630 3.4 3.6 94 6.3 5.5 115
Snake River Station 6900 2.9 5.0 58 8.5 8.9 96
Somsen Ranch 6830 1.7 3.4 50 6.6 6.2 106
Spring Creek Divide 9020 6.7 7.6 88 9.8 8.2 120
Thumb Divide 7970 2.9 4.7 62 6.5 7.0 93
Togwotee Pass 9590 7.9 9.0 88 12.0 9.4 128
Triple Peak 8520 7.4 7.0 106 10.6 8.4 126
Two Ocean Plateau 9240 9.6 11.0 87 10.7 10.3 104
Willow Creek 8060 6.5 8.6 76 13.1 12.2 107
Younts Peak 8340 2.7 5.2 52 9.5 5.8 164
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Basin Index (%) 75 109
MADISON HEADWATERS IN WYOMING
Black Bear 8160 7.0 12.8 55 10.9 13.8 79
Canyon 7870 2.3 4.2 55 5.7 5.9 97
Madison Plateau 7710 3.0 7.3 41 7.7 9.6 80
West Yellowstone 6680 1.1 3.4 32 4.7 5.8 81
Whiskey Creek 6790 2.0 4.4 45 6.7 7.5 89
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Basin Index (%) 48 84
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 8.4 8.0 105 9.9 7.7 129
Canyon 7870 2.3 4.2 55 5.7 5.9 97
Evening Star 9030 11.4 9.4 121 16.5 11.8 140
Fisher Creek 9110 11.3 11.8 96 14.8 12.0 123
Monument Peak 8740 8.1 7.2 112 11.2 8.6 130
Northeast Entrance 7420 2.7 2.8 96 7.7 5.4 143
Parker Peak 9420 8.7 8.2 106 10.5 8.2 128
Sylvan Lake 8440 4.7 7.0 67 10.2 9.6 106
Thumb Divide 7970 2.9 4.7 62 6.5 7.0 93
Two Ocean Plateau 9240 9.6 11.0 87 10.7 10.3 104
White Mill 8730 10.1 8.4 120 11.4 8.8 130
Wolverine 7660 2.8 4.0 70 7.2 5.2 138
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Basin Index (%) 96 122
WIND RIVER
Burroughs Creek 8760 2.4 -M * 7.8 -M *
Castle Creek 8410 1.1 2.6 42 3.5 4.0 88
Cold Springs 9640 1.6 3.1 52 5.5 4.0 138
Deer Park 9690 3.1 5.1 61 4.6 6.6 70
Hobbs Park 10080 2.5 5.2 48 4.4 5.0 88
Kirwin 9580 3.5 4.5 78 7.2 5.1 141
Little Warm 9370 3.6 3.6 100 6.5 5.2 125
South Pass 9040 2.6 5.0 52 4.2 6.3 67
St. Lawrence Alt 8610 .3 -M * 2.4 -M *
Togwotee Pass 9590 7.9 9.0 88 12.0 9.4 128
Townsend Creek 8720 .5 3.2 16 3.4 4.9 69
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Basin Index (%) 64 102
BIGHORN BASIN
Bald Mtn. 9360 7.9 7.0 113 9.4 6.4 147
Bear Trap Meadow 8200 .9 2.3 39 5.5 3.8 145
Bone Springs Div 9340 5.6 6.2 90 6.7 6.0 112
Grave Springs 8560 1.5 2.5 60 5.3 3.8 139
Kirwin 9580 3.5 4.5 78 7.2 5.1 141
Marquette 8800 .3 3.2 9 3.4 4.2 81
Middle Powder 7760 1.5 3.3 45 6.0 4.4 136
Owl Creek 8990 .2 2.2 9 3.0 2.9 103
Powder River Pass 9480 5.1 4.2 121 8.7 5.3 164
Shell Creek 9570 5.8 6.2 94 8.1 5.6 145
Timber Creek 7910 .0 1.9 0 2.6 3.8 68
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Basin Index (%) 74 128
SHOSHONE RIVER
Blackwater 9830 8.1 9.2 88 10.4 8.8 118
Evening Star 9030 11.4 9.4 121 16.5 11.8 140
Marquette 8800 .3 3.2 9 3.4 4.2 81
Sylvan Lake 8440 4.7 7.0 67 10.2 9.6 106
Sylvan Road 7140 2.6 4.4 59 8.4 7.4 114
Younts Peak 8340 2.7 5.2 52 9.5 5.8 164
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Basin Index (%) 78 123
POWDER RIVER
Bear Trap Meadow 8200 .9 2.3 39 5.5 3.8 145
Cloud Peak Reservoir 9830 4.2 5.2 81 6.2 5.6 111
Grave Springs 8560 1.5 2.5 60 5.3 3.8 139
Hansen Sawmill 8360 1.3 2.4 54 6.0 3.7 162
Middle Powder 7760 1.5 3.3 45 6.0 4.4 136
Powder River Pass 9480 5.1 4.2 121 8.7 5.3 164
Soldier Park 8680 1.0 2.0 50 4.2 3.8 111
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Basin Index (%) 71 138
TONGUE RIVER
Big Goose 8010 1.2 2.8 43 4.6 4.3 107
Bone Springs Div 9340 5.6 6.2 90 6.7 6.0 112
Burgess Junction 7910 2.2 3.5 63 5.3 4.8 110
Dome Lake 8890 1.9 3.8 50 5.8 5.1 114
Little Goose 8560 1.5 3.2 47 5.2 5.1 102
Sucker Creek 8840 2.6 4.4 59 6.2 5.4 115
Tie Creek 7050 .6 1.4 43 4.7 4.6 102
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Basin Index (%) 62 109
BELLE FOURCHE
Blind Park 6900 2.0 2.4 83 7.2 4.4 164
Cole Canyon 5930 1.6 1.6 100 6.6 3.4 194
North Rapid Creek 6150 1.1 2.4 46 5.1 3.3 155
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Basin Index (%) 73 170
CHEYENNE RIVER BASIN
Blind Park 6900 2.0 2.4 83 7.2 4.4 164
North Rapid Creek 6150 1.1 2.4 46 5.1 3.3 155
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Basin Index (%) 65 160
UPPER N. PLATTE
Arapaho Ridge 10960 4.9 7.9 62 6.6 8.6 77
Blackhall Mtn 9830 5.7 9.8 58 8.6 11.6 74
Cinnabar Park 9670 5.1 6.9 74 8.0 8.7 92
Columbine 9170 5.7 6.0 95 7.8 8.6 91
Divide Peak 8700 3.5 5.8 60 6.6 8.0 82
Joe Wright 10140 3.5 7.0 50 7.6 9.7 78
Laprele Creek 8370 1.6 2.7 59 5.3 4.6 115
Med Bow 10500 10.9 -M * 13.2 -M *
Never Summer 10300 4.4 6.8 65 3.4 6.8 50
North French Creek 10150 8.4 9.1 92 11.1 9.4 118
Old Battle 9840 7.3 9.8 74 12.9 12.2 106
Rawah 9100 1.6 3.7 43 3.9 6.6 59
Sage Creek Basin 7830 2.1 4.0 52 4.5 5.4 83
Sand Lake 10080 6.5 9.2 71 8.8 9.2 96
South Brush Creek 8480 2.3 3.6 64 4.6 5.4 85
Tower 10610 9.2 13.5 68 11.3 14.2 80
Webber Springs 9250 5.0 7.4 68 8.4 9.7 87
Whiskey Park 8950 6.4 7.6 84 11.6 10.0 116
Willow Creek Pass 9520 1.8 4.8 38 3.8 5.4 70
Zirkel 9320 7.0 7.6 92 11.0 11.0 100
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Basin Index (%) 69 88
SWEETWATER
Deer Park 9690 3.1 5.1 61 4.6 6.6 70
Larsen Creek 8880 .6 2.6 23 4.3 4.6 93
South Pass 9040 2.6 5.0 52 4.2 6.3 67
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Basin Index (%) 50 75
LOWER N. PLATTE
Casper Mtn. 7940 .9 4.3 21 4.0 5.8 69
Laprele Creek 8370 1.6 2.7 59 5.3 4.6 115
Reno Hill 8410 1.1 4.8 23 4.6 5.4 85
Windy Peak 7890 .8 2.4 33 4.1 4.1 100
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Basin Index (%) 31 90
LARAMIE RIVER
Brooklyn Lake 10250 5.3 6.7 79 8.4 7.0 120
Cinnabar Park 9670 5.1 6.9 74 8.0 8.7 92
Crow Creek 8320 .3 3.2 9 2.8 4.3 65
Deadman Hill 10240 3.1 6.2 50 4.4 6.6 67
Rawah 9100 1.6 3.7 43 3.9 6.6 59
Roach 9710 3.1 5.3 58 5.4 7.1 76
Windy Peak 7890 .8 2.4 33 4.1 4.1 100
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Basin Index (%) 56 83
S. PLATTE
Crow Creek 8320 .3 3.2 9 2.8 4.3 65
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Basin Index (%) 9 65
LITTLE SNAKE RIVER
Battle Mountain 7460 1.6 3.2 50 6.2 5.6 111
Divide Peak 8700 3.5 5.8 60 6.6 8.0 82
Elk River 8710 3.8 4.8 79 7.9 6.6 120
Elkhead Divide 8780 3.1 -M * 7.3 -M *
Little Snake River 8930 6.1 7.2 85 11.5 12.0 96
Old Battle 9840 7.3 9.8 74 12.9 12.2 106
Sage Creek Basin 7830 2.1 4.0 52 4.5 5.4 83
Sandstone RS 8150 3.0 3.6 83 6.1 6.6 92
Whiskey Park 8950 6.4 7.6 84 11.6 10.0 116
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Basin Index (%) 73 101
UPPER GREEN RIVER
Big Sandy Opening 9100 3.2 4.5 71 3.9 4.6 85
Blind Bull Sum 8880 6.7 7.7 87 5.9 6.9 86
East Rim Divide 8010 1.8 3.2 56 4.7 4.3 109
Elkhart Park G.S. 9410 3.3 4.2 79 5.0 5.2 96
Gros Ventre Summit 8760 3.3 4.8 69 5.5 5.2 106
Gunsight Pass 9820 4.7 4.6 102 7.5 5.8 129
Indian Creek 9400 6.0 7.4 81 8.1 7.2 112
Kendall R.S. 7790 2.0 3.8 53 5.9 5.2 113
Larsen Creek 8880 .6 2.6 23 4.3 4.6 93
Loomis Park 8240 3.0 4.8 62 5.7 6.1 93
New Fork Lake 8380 2.8 3.7 76 5.5 4.2 131
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 2.3 3.6 64 5.3 4.9 108
Spring Creek Divide 9020 6.7 7.6 88 9.8 8.2 120
Triple Peak 8520 7.4 7.0 106 10.6 8.4 126
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Basin Index (%) 77 109
LOWER GREEN RIVER
Blacks Fork Jct 8880 2.1 2.4 88 4.2 4.8 88
Buck Pasture 9630 3.7 -M * 5.9 -M *
EF Blacks Fork GS 9360 1.8 3.1 58 4.5 4.6 98
Hams Fork 7860 2.9 3.4 85 5.2 4.4 118
Henrys Fork 10180 -M -M * 4.9 -M *
Hewinta 9510 .8 2.8 29 4.7 5.5 85
Hickerson Park 9120 1.5 2.0 75 3.9 4.5 87
Hole-in-Rock 9170 1.0 2.2 45 4.5 4.2 107
Indian Creek 9400 6.0 7.4 81 8.1 7.2 112
Kelley R.S. 8240 3.4 4.5 76 7.4 6.0 123
Spirit Lk 10240 3.7 4.2 88 7.6 6.8 112
Steel Creek Park 10140 4.0 5.0 80 5.8 6.4 91
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Basin Index (%) 74 103
UPPER BEAR RIVER
Bear River RS 8510 -M 2.6 * 3.6 4.8 75
Bug Lake 7980 2.2 5.0 44 7.2 6.6 109
Burts Miller Ranch 7900 .7 2.1 33 4.0 3.3 121
Chalk Creek #1 9160 2.6 7.1 37 6.9 8.5 81
Giveout 6940 1.4 2.6 54 5.6 4.7 119
Hayden Fork 9170 1.4 4.0 35 5.8 7.4 78
Kelley R.S. 8240 3.4 4.5 76 7.4 6.0 123
Lily Lake 9130 1.5 4.3 35 4.1 6.4 64
Monte Cristo 8930 3.8 7.2 53 8.9 8.7 102
Salt River Summit 7630 3.4 3.6 94 6.3 5.5 115
Spring Creek Divide 9020 6.7 7.6 88 9.8 8.2 120
Trial Lake 9970 4.6 6.0 77 5.8 7.3 79
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Basin Index (%) 59 97
If the Basin Index (%) 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 Percent of Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Average value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1981-2010.
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 for the day is less than 10% of the maximum
median value for the year.
* Basin - More than half of the sites within the basin are flagged with *,
preventing the calculation of a meaningful basin index.
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians (for snow water equivalent)
or averages (for precipitation) and the resulting fraction multiplied by 100.
