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 TUESDAY: DECEMBER 23 , 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 6.8 6.2 110 12.8 9.0 142
Blind Bull Sum 8880 12.3 8.4 146 9.6 7.8 123
Cottonwood Creek 7710 8.2 7.5 109 13.4 9.3 144
East Rim Divide 8010 3.6 3.6 100 6.4 4.7 136
Grand Targhee 9260 -M 17.4 * -M 14.1 *
Granite Creek 6770 6.0 5.6 107 11.6 8.0 145
Grassy Lake 7330 8.2 10.4 79 15.8 13.4 118
Gros Ventre Summit 8760 6.8 5.2 131 8.7 5.6 155
Gunsight Pass 9820 7.4 4.9 151 9.7 6.3 154
Lewis Lake Divide 7880 14.6 10.9 134 21.0 14.2 148
Loomis Park 8240 6.3 5.5 115 8.9 6.9 129
Phillips Bench 8170 10.0 8.4 119 14.4 10.3 140
Salt River Summit 7630 5.0 4.2 119 8.1 6.0 135
Snake River Station 6900 5.2 5.6 93 11.9 9.6 124
Somsen Ranch 6830 2.4 3.8 63 8.9 6.9 129
Spring Creek Divide 9020 10.3 8.1 127 12.7 8.8 144
Thumb Divide 7970 7.8 5.4 144 11.2 7.5 149
Togwotee Pass 9590 11.4 9.9 115 15.6 9.9 158
Triple Peak 8520 11.9 7.9 151 15.0 9.4 160
Two Ocean Plateau 9240 16.2 11.8 137 16.2 10.8 150
Willow Creek 8060 9.5 9.6 99 16.0 13.5 119
Younts Peak 8340 8.6 5.8 148 13.9 6.4 217
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Basin Index (%) 120 142
MADISON HEADWATERS IN WYOMING
Black Bear 8160 12.0 14.2 85 16.4 15.4 106
Canyon 7870 5.0 4.8 104 8.6 6.3 137
Madison Plateau 7710 6.8 8.3 82 12.0 10.4 115
West Yellowstone 6680 3.0 3.8 79 7.6 5.9 129
Whiskey Creek 6790 4.6 5.1 90 10.9 8.2 133
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Basin Index (%) 87 120
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 13.1 8.9 147 14.5 8.3 175
Canyon 7870 5.0 4.8 104 8.6 6.3 137
Evening Star 9030 16.2 10.4 156 20.4 13.0 157
Fisher Creek 9110 19.2 13.4 143 21.5 13.0 165
Monument Peak 8740 11.0 8.3 133 14.3 9.6 149
Northeast Entrance 7420 4.4 3.1 142 9.9 6.0 165
Parker Peak 9420 12.8 9.0 142 14.1 9.0 157
Sylvan Lake 8440 7.7 7.7 100 13.3 10.2 130
Thumb Divide 7970 7.8 5.4 144 11.2 7.5 149
Two Ocean Plateau 9240 16.2 11.8 137 16.2 10.8 150
White Mill 8730 14.8 9.6 154 15.5 9.6 161
Wolverine 7660 5.2 4.4 118 10.7 5.5 195
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Basin Index (%) 138 156
WIND RIVER
Burroughs Creek 8760 5.5 -M * 11.4 -M *
Castle Creek 8410 2.7 3.0 90 5.0 4.2 119
Cold Springs 9640 3.1 3.3 94 7.4 4.4 168
Deer Park 9690 6.6 5.2 127 8.3 7.0 119
Hobbs Park 10080 5.4 5.6 96 7.0 5.2 135
Kirwin 9580 7.2 4.8 150 11.4 5.4 211
Little Warm 9370 5.1 4.0 128 8.4 5.6 150
South Pass 9040 5.6 5.4 104 7.2 6.6 109
St. Lawrence Alt 8610 1.5 -M * 4.3 -M *
Togwotee Pass 9590 11.4 9.9 115 15.6 9.9 158
Townsend Creek 8720 1.9 3.4 56 5.0 5.2 96
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Basin Index (%) 110 141
BIGHORN BASIN
Bald Mtn. 9360 8.4 7.6 111 10.0 7.0 143
Bear Trap Meadow 8200 1.8 2.6 69 6.1 4.0 152
Bone Springs Div 9340 6.5 6.7 97 7.2 6.6 109
Grave Springs 8560 1.6 3.0 53 5.4 4.0 135
Kirwin 9580 7.2 4.8 150 11.4 5.4 211
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 6.2 4.4 141 10.0 5.6 179
Shell Creek 9570 6.4 6.8 94 8.7 6.0 145
Timber Creek 7910 .1 1.9 5 2.8 3.8 74
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Basin Index (%) 89 139
SHOSHONE RIVER
Blackwater 9830 12.4 10.1 123 14.2 9.4 151
Evening Star 9030 16.2 10.4 156 20.4 13.0 157
Marquette 8800 .6 3.3 18 3.9 4.4 89
Sylvan Lake 8440 7.7 7.7 100 13.3 10.2 130
Sylvan Road 7140 4.0 4.8 83 11.4 8.0 142
Younts Peak 8340 8.6 5.8 148 13.9 6.4 217
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Basin Index (%) 118 150
POWDER RIVER
Bear Trap Meadow 8200 1.8 2.6 69 6.1 4.0 152
Cloud Peak Reservoir 9830 5.4 5.5 98 7.3 6.0 122
Grave Springs 8560 1.6 3.0 53 5.4 4.0 135
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 6.2 4.4 141 10.0 5.6 179
Soldier Park 8680 1.4 2.0 70 4.6 3.9 118
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Basin Index (%) 86 145
TONGUE RIVER
Big Goose 8010 1.7 3.0 57 5.2 4.4 118
Bone Springs Div 9340 6.5 6.7 97 7.2 6.6 109
Burgess Junction 7910 2.6 4.0 65 5.8 5.0 116
Dome Lake 8890 2.7 4.2 64 6.8 5.4 126
Little Goose 8560 2.3 3.5 66 6.2 5.2 119
Sucker Creek 8840 3.2 4.6 70 6.8 5.8 117
Tie Creek 7050 .7 1.7 41 5.0 4.8 104
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Basin Index (%) 71 116
BELLE FOURCHE
Blind Park 6900 2.3 2.6 88 7.8 4.6 170
Cole Canyon 5930 1.8 1.7 106 7.0 3.8 184
North Rapid Creek 6150 1.5 2.8 54 5.6 3.4 165
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Basin Index (%) 79 173
CHEYENNE RIVER BASIN
Blind Park 6900 2.3 2.6 88 7.8 4.6 170
North Rapid Creek 6150 1.5 2.8 54 5.6 3.4 165
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Basin Index (%) 70 168
UPPER N. PLATTE
Arapaho Ridge 10960 5.5 8.8 62 7.1 9.2 77
Blackhall Mtn 9830 6.7 11.2 60 9.7 12.6 77
Cinnabar Park 9670 5.8 7.6 76 8.7 9.4 93
Columbine 9170 6.5 7.9 82 8.8 9.4 94
Divide Peak 8700 3.6 6.6 55 6.8 9.0 76
Joe Wright 10140 3.8 7.5 51 8.9 10.5 85
Laprele Creek 8370 1.8 3.4 53 5.6 4.8 117
Med Bow 10500 12.3 -M * 13.9 -M *
Never Summer 10300 5.0 7.9 63 3.7 7.8 47
North French Creek 10150 9.5 10.0 95 11.5 10.6 108
Old Battle 9840 8.4 11.0 76 13.8 13.4 103
Rawah 9100 2.7 4.2 64 4.9 7.0 70
Sage Creek Basin 7830 2.2 4.4 50 4.7 5.7 82
Sand Lake 10080 7.2 10.1 71 9.3 9.8 95
South Brush Creek 8480 2.5 4.1 61 4.7 5.7 82
Tower 10610 10.5 15.2 69 13.0 15.9 82
Webber Springs 9250 5.9 8.2 72 9.3 10.4 89
Whiskey Park 8950 7.5 8.6 87 12.6 11.0 115
Willow Creek Pass 9520 2.0 5.2 38 4.0 6.0 67
Zirkel 9320 8.9 9.1 98 12.6 12.4 102
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Basin Index (%) 70 88
SWEETWATER
Deer Park 9690 6.6 5.2 127 8.3 7.0 119
Larsen Creek 8880 1.9 2.6 73 5.7 5.4 106
South Pass 9040 5.6 5.4 104 7.2 6.6 109
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Basin Index (%) 107 112
LOWER N. PLATTE
Casper Mtn. 7940 1.0 4.8 21 4.2 6.0 70
Laprele Creek 8370 1.8 3.4 53 5.6 4.8 117
Reno Hill 8410 1.4 5.4 26 5.0 6.0 83
Windy Peak 7890 .9 2.8 32 4.4 4.5 98
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Basin Index (%) 31 90
LARAMIE RIVER
Brooklyn Lake 10250 6.4 7.2 89 9.3 7.6 122
Cinnabar Park 9670 5.8 7.6 76 8.7 9.4 93
Crow Creek 8320 .2 3.4 6 3.0 4.6 65
Deadman Hill 10240 5.2 7.0 74 5.5 7.2 76
Rawah 9100 2.7 4.2 64 4.9 7.0 70
Roach 9710 3.7 5.8 64 6.1 7.8 78
Windy Peak 7890 .9 2.8 32 4.4 4.5 98
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Basin Index (%) 66 87
S. PLATTE
Crow Creek 8320 .2 3.4 6 3.0 4.6 65
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Basin Index (%) 6 65
LITTLE SNAKE RIVER
Battle Mountain 7460 1.7 3.4 50 6.3 6.1 103
Divide Peak 8700 3.6 6.6 55 6.8 9.0 76
Elk River 8710 4.5 5.8 78 8.5 7.8 109
Elkhead Divide 8780 3.7 -M * 7.7 -M *
Little Snake River 8930 7.2 8.6 84 12.4 13.6 91
Old Battle 9840 8.4 11.0 76 13.8 13.4 103
Sage Creek Basin 7830 2.2 4.4 50 4.7 5.7 82
Sandstone RS 8150 3.3 4.2 79 6.3 7.2 88
Whiskey Park 8950 7.5 8.6 87 12.6 11.0 115
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Basin Index (%) 73 97
UPPER GREEN RIVER
Big Sandy Opening 9100 4.5 4.8 94 5.1 5.2 98
Blind Bull Sum 8880 12.3 8.4 146 9.6 7.8 123
East Rim Divide 8010 3.6 3.6 100 6.4 4.7 136
Elkhart Park G.S. 9410 5.2 4.6 113 6.8 5.8 117
Gros Ventre Summit 8760 6.8 5.2 131 8.7 5.6 155
Gunsight Pass 9820 7.4 4.9 151 9.7 6.3 154
Indian Creek 9400 9.0 8.1 111 10.3 7.8 132
Kendall R.S. 7790 5.8 4.3 135 9.8 5.8 169
Larsen Creek 8880 1.9 2.6 73 5.7 5.4 106
Loomis Park 8240 6.3 5.5 115 8.9 6.9 129
New Fork Lake 8380 5.1 4.0 128 7.8 4.4 177
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 4.0 4.4 91 7.7 5.6 138
Spring Creek Divide 9020 10.3 8.1 127 12.7 8.8 144
Triple Peak 8520 11.9 7.9 151 15.0 9.4 160
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Basin Index (%) 123 139
LOWER GREEN RIVER
Blacks Fork Jct 8880 3.4 2.8 121 5.6 5.2 108
Buck Pasture 9630 5.2 -M * 7.3 -M *
EF Blacks Fork GS 9360 2.5 3.7 68 5.4 5.0 108
Hams Fork 7860 4.4 3.8 116 6.4 4.7 136
Henrys Fork 10180 -M -M * 5.7 -M *
Hewinta 9510 2.2 3.2 69 6.3 6.1 103
Hickerson Park 9120 1.6 2.4 67 4.3 4.7 91
Hole-in-Rock 9170 1.5 2.8 54 5.3 4.6 115
Indian Creek 9400 9.0 8.1 111 10.3 7.8 132
Kelley R.S. 8240 5.1 5.2 98 9.0 6.8 132
Spirit Lk 10240 4.1 4.7 87 7.9 7.3 108
Steel Creek Park 10140 5.3 5.4 98 7.4 6.8 109
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Basin Index (%) 93 115
UPPER BEAR RIVER
Bear River RS 8510 1.7 3.2 53 4.7 5.2 90
Bug Lake 7980 3.8 5.7 67 8.7 7.2 121
Burts Miller Ranch 7900 1.0 2.4 42 5.1 3.4 150
Chalk Creek #1 9160 4.4 8.0 55 8.6 9.4 91
Giveout 6940 2.2 2.8 79 7.0 5.2 135
Hayden Fork 9170 3.2 4.6 70 7.7 8.2 94
Kelley R.S. 8240 5.1 5.2 98 9.0 6.8 132
Lily Lake 9130 2.8 4.5 62 5.3 6.8 78
Monte Cristo 8930 5.3 8.8 60 10.4 9.9 105
Salt River Summit 7630 5.0 4.2 119 8.1 6.0 135
Spring Creek Divide 9020 10.3 8.1 127 12.7 8.8 144
Trial Lake 9970 6.7 7.4 91 7.9 8.5 93
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Basin Index (%) 79 111
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.
