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 MONDAY: DECEMBER 22 , 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 6.6 6.0 110 12.2 9.0 136
Blind Bull Sum 8880 11.4 8.2 139 8.8 7.6 116
Cottonwood Creek 7710 8.2 7.4 111 13.4 9.2 146
East Rim Divide 8010 3.6 3.6 100 6.5 4.6 141
Grand Targhee 9260 -M 17.4 * -M 13.9 *
Granite Creek 6770 -M 5.2 * -M 7.8 *
Grassy Lake 7330 7.9 10.2 77 14.3 13.4 107
Gros Ventre Summit 8760 6.4 5.0 128 8.2 5.6 146
Gunsight Pass 9820 7.2 4.8 150 9.6 6.2 155
Lewis Lake Divide 7880 12.9 10.4 124 19.3 13.4 144
Loomis Park 8240 6.2 5.2 119 8.9 6.7 133
Phillips Bench 8170 9.5 8.4 113 13.8 10.0 138
Salt River Summit 7630 5.1 4.0 128 8.1 5.8 140
Snake River Station 6900 5.2 5.4 96 11.2 9.4 119
Somsen Ranch 6830 2.6 3.6 72 8.5 6.8 125
Spring Creek Divide 9020 9.9 7.8 127 12.5 8.7 144
Thumb Divide 7970 6.4 5.4 119 9.6 7.4 130
Togwotee Pass 9590 10.9 9.8 111 15.2 9.8 155
Triple Peak 8520 11.4 7.7 148 14.5 9.4 154
Two Ocean Plateau 9240 14.7 11.8 125 14.8 10.8 137
Willow Creek 8060 9.3 9.4 99 15.6 13.1 119
Younts Peak 8340 8.0 5.7 140 13.2 6.4 206
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Basin Index (%) 117 137
MADISON HEADWATERS IN WYOMING
Black Bear 8160 10.7 14.0 76 14.6 15.2 96
Canyon 7870 4.2 4.8 88 7.7 6.2 124
Madison Plateau 7710 5.6 8.0 70 10.4 10.4 100
West Yellowstone 6680 2.7 3.8 71 6.4 5.9 108
Whiskey Creek 6790 4.1 5.0 82 9.1 8.2 111
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Basin Index (%) 77 105
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 11.7 8.8 133 13.3 8.2 162
Canyon 7870 4.2 4.8 88 7.7 6.2 124
Evening Star 9030 15.0 10.4 144 19.4 12.6 154
Fisher Creek 9110 16.7 13.2 127 19.3 13.0 148
Monument Peak 8740 10.2 8.0 128 13.5 9.2 147
Northeast Entrance 7420 4.1 3.0 137 9.0 5.8 155
Parker Peak 9420 11.8 8.8 134 13.2 9.0 147
Sylvan Lake 8440 6.8 7.6 89 12.5 10.2 123
Thumb Divide 7970 6.4 5.4 119 9.6 7.4 130
Two Ocean Plateau 9240 14.7 11.8 125 14.8 10.8 137
White Mill 8730 13.5 9.4 144 14.6 9.4 155
Wolverine 7660 4.7 4.2 112 10.0 5.4 185
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Basin Index (%) 126 146
WIND RIVER
Burroughs Creek 8760 5.2 -M * 11.2 -M *
Castle Creek 8410 2.7 3.0 90 5.0 4.2 119
Cold Springs 9640 3.0 3.3 91 7.2 4.3 167
Deer Park 9690 6.6 5.2 127 8.3 6.9 120
Hobbs Park 10080 5.1 5.6 91 6.6 5.2 127
Kirwin 9580 6.7 4.8 140 10.8 5.2 208
Little Warm 9370 4.9 3.9 126 8.1 5.6 145
South Pass 9040 5.6 5.4 104 7.1 6.6 108
St. Lawrence Alt 8610 -M -M * -M -M *
Togwotee Pass 9590 10.9 9.8 111 15.2 9.8 155
Townsend Creek 8720 1.9 3.2 59 5.0 5.1 98
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Basin Index (%) 107 139
BIGHORN BASIN
Bald Mtn. 9360 8.4 7.4 114 10.0 7.0 143
Bear Trap Meadow 8200 1.9 2.5 76 6.1 4.0 152
Bone Springs Div 9340 6.5 6.4 102 7.2 6.4 112
Grave Springs 8560 1.6 2.8 57 5.5 4.0 138
Kirwin 9580 6.7 4.8 140 10.8 5.2 208
Marquette 8800 .6 3.3 18 3.9 4.4 89
Middle Powder 7760 2.2 3.8 58 6.3 4.6 137
Owl Creek 8990 .8 2.3 35 3.7 3.0 123
Powder River Pass 9480 6.3 4.4 143 10.0 5.6 179
Shell Creek 9570 6.4 6.6 97 8.7 5.8 150
Timber Creek 7910 .2 1.9 11 2.8 3.8 74
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Basin Index (%) 90 139
SHOSHONE RIVER
Blackwater 9830 11.3 9.9 114 13.3 9.4 141
Evening Star 9030 15.0 10.4 144 19.4 12.6 154
Marquette 8800 .6 3.3 18 3.9 4.4 89
Sylvan Lake 8440 6.8 7.6 89 12.5 10.2 123
Sylvan Road 7140 4.0 4.8 83 10.5 7.9 133
Younts Peak 8340 8.0 5.7 140 13.2 6.4 206
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Basin Index (%) 110 143
POWDER RIVER
Bear Trap Meadow 8200 1.9 2.5 76 6.1 4.0 152
Cloud Peak Reservoir 9830 5.4 5.5 98 7.3 5.8 126
Grave Springs 8560 1.6 2.8 57 5.5 4.0 138
Hansen Sawmill 8360 2.0 2.6 77 6.7 3.8 176
Middle Powder 7760 2.2 3.8 58 6.3 4.6 137
Powder River Pass 9480 6.3 4.4 143 10.0 5.6 179
Soldier Park 8680 1.4 2.0 70 4.6 3.9 118
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Basin Index (%) 88 147
TONGUE RIVER
Big Goose 8010 1.7 2.9 59 5.2 4.4 118
Bone Springs Div 9340 6.5 6.4 102 7.2 6.4 112
Burgess Junction 7910 2.6 3.7 70 5.8 5.0 116
Dome Lake 8890 2.8 4.2 67 6.8 5.4 126
Little Goose 8560 2.4 3.4 71 6.3 5.2 121
Sucker Creek 8840 3.2 4.6 70 6.9 5.6 123
Tie Creek 7050 .7 1.6 44 5.0 4.8 104
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Basin Index (%) 74 117
BELLE FOURCHE
Blind Park 6900 2.3 2.6 88 7.8 4.5 173
Cole Canyon 5930 1.8 1.6 112 7.1 3.6 197
North Rapid Creek 6150 1.4 2.6 54 5.6 3.4 165
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Basin Index (%) 81 178
CHEYENNE RIVER BASIN
Blind Park 6900 2.3 2.6 88 7.8 4.5 173
North Rapid Creek 6150 1.4 2.6 54 5.6 3.4 165
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Basin Index (%) 71 170
UPPER N. PLATTE
Arapaho Ridge 10960 5.5 8.8 62 7.0 9.0 78
Blackhall Mtn 9830 6.7 11.0 61 9.7 12.1 80
Cinnabar Park 9670 5.7 7.2 79 8.6 9.2 93
Columbine 9170 6.5 7.5 87 8.8 9.4 94
Divide Peak 8700 3.6 6.5 55 6.8 8.9 76
Joe Wright 10140 3.8 7.4 51 8.8 10.4 85
Laprele Creek 8370 1.9 3.2 59 5.6 4.8 117
Med Bow 10500 12.2 -M * 13.9 -M *
Never Summer 10300 5.0 7.5 67 3.7 7.6 49
North French Creek 10150 9.2 9.8 94 11.5 10.2 113
Old Battle 9840 8.4 10.7 79 13.8 13.0 106
Rawah 9100 2.7 4.2 64 4.9 7.0 70
Sage Creek Basin 7830 2.1 4.3 49 4.7 5.6 84
Sand Lake 10080 7.2 9.8 73 9.3 9.8 95
South Brush Creek 8480 2.5 4.1 61 4.7 5.5 85
Tower 10610 10.5 14.4 73 13.1 15.8 83
Webber Springs 9250 5.8 8.0 72 9.3 10.3 90
Whiskey Park 8950 7.4 8.4 88 12.6 10.8 117
Willow Creek Pass 9520 2.0 5.2 38 4.0 5.9 68
Zirkel 9320 8.9 8.4 106 12.6 12.0 105
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Basin Index (%) 72 90
SWEETWATER
Deer Park 9690 6.6 5.2 127 8.3 6.9 120
Larsen Creek 8880 1.9 2.7 70 5.7 5.4 106
South Pass 9040 5.6 5.4 104 7.1 6.6 108
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Basin Index (%) 106 112
LOWER N. PLATTE
Casper Mtn. 7940 1.0 4.8 21 4.1 5.8 71
Laprele Creek 8370 1.9 3.2 59 5.6 4.8 117
Reno Hill 8410 1.4 5.3 26 5.0 5.8 86
Windy Peak 7890 1.0 2.8 36 4.4 4.4 100
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Basin Index (%) 33 92
LARAMIE RIVER
Brooklyn Lake 10250 6.4 7.2 89 9.3 7.4 126
Cinnabar Park 9670 5.7 7.2 79 8.6 9.2 93
Crow Creek 8320 .3 3.4 9 3.0 4.6 65
Deadman Hill 10240 5.0 7.0 71 5.4 7.2 75
Rawah 9100 2.7 4.2 64 4.9 7.0 70
Roach 9710 3.8 5.6 68 6.1 7.7 79
Windy Peak 7890 1.0 2.8 36 4.4 4.4 100
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Basin Index (%) 67 88
S. PLATTE
Crow Creek 8320 .3 3.4 9 3.0 4.6 65
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Basin Index (%) 9 65
LITTLE SNAKE RIVER
Battle Mountain 7460 1.8 3.6 50 6.3 6.0 105
Divide Peak 8700 3.6 6.5 55 6.8 8.9 76
Elk River 8710 4.4 5.8 76 8.6 7.4 116
Elkhead Divide 8780 3.7 -M * 7.7 -M *
Little Snake River 8930 7.1 8.0 89 12.5 13.3 94
Old Battle 9840 8.4 10.7 79 13.8 13.0 106
Sage Creek Basin 7830 2.1 4.3 49 4.7 5.6 84
Sandstone RS 8150 3.3 4.1 80 6.4 7.1 90
Whiskey Park 8950 7.4 8.4 88 12.6 10.8 117
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Basin Index (%) 74 99
UPPER GREEN RIVER
Big Sandy Opening 9100 4.5 4.7 96 5.1 5.0 102
Blind Bull Sum 8880 11.4 8.2 139 8.8 7.6 116
East Rim Divide 8010 3.6 3.6 100 6.5 4.6 141
Elkhart Park G.S. 9410 5.2 4.6 113 6.8 5.7 119
Gros Ventre Summit 8760 6.4 5.0 128 8.2 5.6 146
Gunsight Pass 9820 7.2 4.8 150 9.6 6.2 155
Indian Creek 9400 9.0 8.1 111 10.2 7.8 131
Kendall R.S. 7790 5.8 4.3 135 9.6 5.5 175
Larsen Creek 8880 1.9 2.7 70 5.7 5.4 106
Loomis Park 8240 6.2 5.2 119 8.9 6.7 133
New Fork Lake 8380 5.1 3.9 131 7.7 4.4 175
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 4.1 4.2 98 7.6 5.4 141
Spring Creek Divide 9020 9.9 7.8 127 12.5 8.7 144
Triple Peak 8520 11.4 7.7 148 14.5 9.4 154
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Basin Index (%) 123 138
LOWER GREEN RIVER
Blacks Fork Jct 8880 3.4 2.8 121 5.5 5.2 106
Buck Pasture 9630 5.3 -M * 7.4 -M *
EF Blacks Fork GS 9360 2.6 3.4 76 5.4 4.8 112
Hams Fork 7860 4.5 3.8 118 6.4 4.6 139
Henrys Fork 10180 -M -M * 5.6 -M *
Hewinta 9510 2.2 3.0 73 6.3 5.8 109
Hickerson Park 9120 1.3 2.4 54 4.3 4.7 91
Hole-in-Rock 9170 1.5 2.6 58 5.3 4.5 118
Indian Creek 9400 9.0 8.1 111 10.2 7.8 131
Kelley R.S. 8240 5.1 5.0 102 9.0 6.7 134
Spirit Lk 10240 4.0 4.6 87 7.9 7.2 110
Steel Creek Park 10140 5.3 5.4 98 7.4 6.6 112
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Basin Index (%) 95 117
UPPER BEAR RIVER
Bear River RS 8510 1.7 3.2 53 4.7 5.1 92
Bug Lake 7980 3.8 5.6 68 8.7 7.0 124
Burts Miller Ranch 7900 1.3 2.2 59 5.1 3.4 150
Chalk Creek #1 9160 4.4 7.8 56 8.7 9.4 93
Giveout 6940 2.4 2.8 86 7.0 5.2 135
Hayden Fork 9170 3.2 4.4 73 7.7 7.8 99
Kelley R.S. 8240 5.1 5.0 102 9.0 6.7 134
Lily Lake 9130 2.8 4.5 62 5.3 6.8 78
Monte Cristo 8930 5.3 8.4 63 10.4 9.6 108
Salt River Summit 7630 5.1 4.0 128 8.1 5.8 140
Spring Creek Divide 9020 9.9 7.8 127 12.5 8.7 144
Trial Lake 9970 6.8 7.0 97 7.9 8.2 96
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Basin Index (%) 83 114
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.
