Wyoming Snow Precipitation Update
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 FRIDAY: DECEMBER 19 , 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 4.2 5.6 75 9.8 8.8 111
Blind Bull Sum 8880 8.4 7.8 108 6.7 7.3 92
Cottonwood Creek 7710 7.6 7.0 109 12.5 9.0 139
East Rim Divide 8010 2.4 3.4 71 5.4 4.3 126
Grand Targhee 9260 13.6 16.8 81 13.6 13.4 101
Granite Creek 6770 4.0 4.7 85 9.0 7.5 120
Grassy Lake 7330 6.6 9.8 67 12.1 12.6 96
Gros Ventre Summit 8760 4.4 4.8 92 6.4 5.3 121
Gunsight Pass 9820 5.8 4.8 121 8.4 5.8 145
Lewis Lake Divide 7880 9.2 9.9 93 15.4 12.2 126
Loomis Park 8240 4.2 5.0 84 7.0 6.3 111
Phillips Bench 8170 6.8 8.2 83 11.0 9.6 115
Salt River Summit 7630 4.1 3.7 111 7.2 5.7 126
Snake River Station 6900 3.9 5.3 74 9.5 9.2 103
Somsen Ranch 6830 2.3 3.4 68 7.5 6.4 117
Spring Creek Divide 9020 7.8 7.7 101 10.7 8.5 126
Thumb Divide 7970 3.8 4.8 79 7.3 7.2 101
Togwotee Pass 9590 8.9 9.2 97 13.3 9.5 140
Triple Peak 8520 8.8 7.4 119 11.9 9.1 131
Two Ocean Plateau 9240 11.0 11.2 98 11.8 10.6 111
Willow Creek 8060 7.7 8.9 87 14.0 12.5 112
Younts Peak 8340 4.1 5.4 76 10.5 6.0 175
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Basin Index (%) 90 118
MADISON HEADWATERS IN WYOMING
Black Bear 8160 8.6 13.0 66 12.4 14.1 88
Canyon 7870 2.9 4.4 66 6.5 6.1 107
Madison Plateau 7710 4.4 7.4 59 9.3 9.8 95
West Yellowstone 6680 1.9 3.6 53 5.7 5.8 98
Whiskey Creek 6790 3.2 4.7 68 8.1 7.7 105
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Basin Index (%) 63 97
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 9.1 8.4 108 10.8 7.9 137
Canyon 7870 2.9 4.4 66 6.5 6.1 107
Evening Star 9030 12.5 9.8 128 17.5 12.0 146
Fisher Creek 9110 13.2 12.2 108 16.0 12.4 129
Monument Peak 8740 9.0 7.5 120 12.2 8.9 137
Northeast Entrance 7420 3.3 2.8 118 8.3 5.5 151
Parker Peak 9420 9.4 8.2 115 11.1 8.3 134
Sylvan Lake 8440 5.5 7.3 75 11.2 10.0 112
Thumb Divide 7970 3.8 4.8 79 7.3 7.2 101
Two Ocean Plateau 9240 11.0 11.2 98 11.8 10.6 111
White Mill 8730 11.1 9.0 123 12.3 9.0 137
Wolverine 7660 3.3 4.2 79 8.5 5.4 157
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Basin Index (%) 105 129
WIND RIVER
Burroughs Creek 8760 3.3 -M * 9.1 -M *
Castle Creek 8410 1.6 2.7 59 4.0 4.0 100
Cold Springs 9640 2.1 3.1 68 6.3 4.0 158
Deer Park 9690 4.3 5.0 86 5.9 6.6 89
Hobbs Park 10080 3.1 5.4 57 5.0 5.0 100
Kirwin 9580 4.4 4.7 94 8.3 5.2 160
Little Warm 9370 4.2 3.7 114 7.2 5.2 138
South Pass 9040 3.8 5.2 73 5.2 6.4 81
St. Lawrence Alt 8610 .6 -M * 3.0 -M *
Togwotee Pass 9590 8.9 9.2 97 13.3 9.5 140
Townsend Creek 8720 1.0 3.2 31 4.0 5.0 80
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Basin Index (%) 79 116
BIGHORN BASIN
Bald Mtn. 9360 7.9 7.2 110 9.4 6.5 145
Bear Trap Meadow 8200 1.5 2.4 62 5.5 3.8 145
Bone Springs Div 9340 5.7 6.3 90 6.8 6.1 111
Grave Springs 8560 1.5 2.6 58 5.3 3.8 139
Kirwin 9580 4.4 4.7 94 8.3 5.2 160
Marquette 8800 .3 3.2 9 3.4 4.2 81
Middle Powder 7760 1.9 3.4 56 6.0 4.6 130
Owl Creek 8990 .5 2.2 23 3.2 2.9 110
Powder River Pass 9480 5.6 4.3 130 9.3 5.3 175
Shell Creek 9570 6.1 6.3 97 8.4 5.6 150
Timber Creek 7910 .0 1.8 0 2.6 3.8 68
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Basin Index (%) 80 132
SHOSHONE RIVER
Blackwater 9830 9.0 9.4 96 11.1 8.8 126
Evening Star 9030 12.5 9.8 128 17.5 12.0 146
Marquette 8800 .3 3.2 9 3.4 4.2 81
Sylvan Lake 8440 5.5 7.3 75 11.2 10.0 112
Sylvan Road 7140 3.0 4.5 67 9.1 7.6 120
Younts Peak 8340 4.1 5.4 76 10.5 6.0 175
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Basin Index (%) 87 129
POWDER RIVER
Bear Trap Meadow 8200 1.5 2.4 62 5.5 3.8 145
Cloud Peak Reservoir 9830 4.9 5.2 94 6.7 5.6 120
Grave Springs 8560 1.5 2.6 58 5.3 3.8 139
Hansen Sawmill 8360 1.6 2.6 62 6.5 3.8 171
Middle Powder 7760 1.9 3.4 56 6.0 4.6 130
Powder River Pass 9480 5.6 4.3 130 9.3 5.3 175
Soldier Park 8680 1.2 2.0 60 4.4 3.9 113
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Basin Index (%) 81 142
TONGUE RIVER
Big Goose 8010 1.3 2.9 45 4.7 4.4 107
Bone Springs Div 9340 5.7 6.3 90 6.8 6.1 111
Burgess Junction 7910 2.2 3.6 61 5.4 4.9 110
Dome Lake 8890 2.1 3.8 55 6.3 5.3 119
Little Goose 8560 1.7 3.4 50 5.4 5.2 104
Sucker Creek 8840 2.6 4.5 58 6.3 5.6 112
Tie Creek 7050 .4 1.4 29 4.8 4.6 104
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Basin Index (%) 62 110
BELLE FOURCHE
Blind Park 6900 2.1 2.3 91 7.6 4.5 169
Cole Canyon 5930 1.3 1.6 81 6.9 3.5 197
North Rapid Creek 6150 1.2 2.5 48 5.4 3.3 164
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Basin Index (%) 72 176
CHEYENNE RIVER BASIN
Blind Park 6900 2.1 2.3 91 7.6 4.5 169
North Rapid Creek 6150 1.2 2.5 48 5.4 3.3 164
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Basin Index (%) 69 167
UPPER N. PLATTE
Arapaho Ridge 10960 5.2 8.2 63 6.8 8.8 77
Blackhall Mtn 9830 6.1 9.9 62 9.2 11.6 79
Cinnabar Park 9670 5.4 7.0 77 8.4 8.8 95
Columbine 9170 5.9 6.6 89 8.1 8.9 91
Divide Peak 8700 3.5 6.1 57 6.7 8.2 82
Joe Wright 10140 3.5 7.1 49 8.0 9.8 82
Laprele Creek 8370 1.8 2.8 64 5.4 4.7 115
Med Bow 10500 11.9 -M * 13.8 -M *
Never Summer 10300 4.6 6.9 67 3.5 6.8 51
North French Creek 10150 8.9 9.2 97 11.4 9.5 120
Old Battle 9840 8.0 10.2 78 13.3 12.4 107
Rawah 9100 1.7 4.0 42 4.0 6.8 59
Sage Creek Basin 7830 2.2 4.1 54 4.7 5.5 85
Sand Lake 10080 6.9 9.3 74 9.2 9.4 98
South Brush Creek 8480 2.4 3.6 67 4.6 5.4 85
Tower 10610 9.0 13.8 65 11.5 15.2 76
Webber Springs 9250 5.6 7.4 76 8.9 9.8 91
Whiskey Park 8950 6.7 8.0 84 12.0 10.4 115
Willow Creek Pass 9520 2.0 5.0 40 4.0 5.6 71
Zirkel 9320 7.8 7.7 101 11.4 11.0 104
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Basin Index (%) 71 90
SWEETWATER
Deer Park 9690 4.3 5.0 86 5.9 6.6 89
Larsen Creek 8880 1.3 2.5 52 5.1 4.6 111
South Pass 9040 3.8 5.2 73 5.2 6.4 81
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Basin Index (%) 74 92
LOWER N. PLATTE
Casper Mtn. 7940 .9 4.4 20 4.0 5.8 69
Laprele Creek 8370 1.8 2.8 64 5.4 4.7 115
Reno Hill 8410 1.1 5.0 22 4.7 5.6 84
Windy Peak 7890 .8 2.5 32 4.2 4.2 100
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Basin Index (%) 31 90
LARAMIE RIVER
Brooklyn Lake 10250 6.0 6.8 88 9.0 7.2 125
Cinnabar Park 9670 5.4 7.0 77 8.4 8.8 95
Crow Creek 8320 .3 3.2 9 2.9 4.3 67
Deadman Hill 10240 3.0 6.4 47 4.6 6.6 70
Rawah 9100 1.7 4.0 42 4.0 6.8 59
Roach 9710 3.2 5.4 59 5.6 7.4 76
Windy Peak 7890 .8 2.5 32 4.2 4.2 100
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Basin Index (%) 58 85
S. PLATTE
Crow Creek 8320 .3 3.2 9 2.9 4.3 67
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Basin Index (%) 9 67
LITTLE SNAKE RIVER
Battle Mountain 7460 1.6 3.2 50 6.3 5.8 109
Divide Peak 8700 3.5 6.1 57 6.7 8.2 82
Elk River 8710 3.9 5.0 78 8.1 6.9 117
Elkhead Divide 8780 3.3 -M * 7.5 -M *
Little Snake River 8930 6.6 7.5 88 12.0 12.2 98
Old Battle 9840 8.0 10.2 78 13.3 12.4 107
Sage Creek Basin 7830 2.2 4.1 54 4.7 5.5 85
Sandstone RS 8150 3.1 3.8 82 6.2 6.8 91
Whiskey Park 8950 6.7 8.0 84 12.0 10.4 115
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Basin Index (%) 74 102
UPPER GREEN RIVER
Big Sandy Opening 9100 3.9 4.5 87 4.5 4.8 94
Blind Bull Sum 8880 8.4 7.8 108 6.7 7.3 92
East Rim Divide 8010 2.4 3.4 71 5.4 4.3 126
Elkhart Park G.S. 9410 4.0 4.3 93 5.7 5.4 106
Gros Ventre Summit 8760 4.4 4.8 92 6.4 5.3 121
Gunsight Pass 9820 5.8 4.8 121 8.4 5.8 145
Indian Creek 9400 7.3 7.7 95 9.0 7.5 120
Kendall R.S. 7790 3.5 4.2 83 7.3 5.4 135
Larsen Creek 8880 1.3 2.5 52 5.1 4.6 111
Loomis Park 8240 4.2 5.0 84 7.0 6.3 111
New Fork Lake 8380 3.7 3.7 100 6.4 4.3 149
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 3.1 4.0 78 6.3 5.2 121
Spring Creek Divide 9020 7.8 7.7 101 10.7 8.5 126
Triple Peak 8520 8.8 7.4 119 11.9 9.1 131
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Basin Index (%) 96 120
LOWER GREEN RIVER
Blacks Fork Jct 8880 2.4 2.6 92 4.5 5.0 90
Buck Pasture 9630 4.1 -M * 6.2 -M *
EF Blacks Fork GS 9360 2.0 3.1 65 4.6 4.7 98
Hams Fork 7860 3.6 3.6 100 5.8 4.5 129
Henrys Fork 10180 -M -M * 5.1 -M *
Hewinta 9510 1.1 2.9 38 5.1 5.8 88
Hickerson Park 9120 1.1 2.2 50 4.0 4.6 87
Hole-in-Rock 9170 1.0 2.2 45 4.7 4.2 112
Indian Creek 9400 7.3 7.7 95 9.0 7.5 120
Kelley R.S. 8240 3.9 4.6 85 8.0 6.2 129
Spirit Lk 10240 3.8 4.2 90 7.8 6.8 115
Steel Creek Park 10140 4.1 5.2 79 6.2 6.4 97
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Basin Index (%) 79 107
UPPER BEAR RIVER
Bear River RS 8510 .8 2.6 31 3.9 4.8 81
Bug Lake 7980 2.9 5.2 56 7.9 6.7 118
Burts Miller Ranch 7900 .7 2.1 33 4.1 3.3 124
Chalk Creek #1 9160 3.1 7.6 41 7.5 9.0 83
Giveout 6940 1.6 2.6 62 6.1 5.0 122
Hayden Fork 9170 1.9 4.2 45 6.4 7.6 84
Kelley R.S. 8240 3.9 4.6 85 8.0 6.2 129
Lily Lake 9130 2.0 4.4 45 4.4 6.4 69
Monte Cristo 8930 4.4 7.6 58 9.4 9.1 103
Salt River Summit 7630 4.1 3.7 111 7.2 5.7 126
Spring Creek Divide 9020 7.8 7.7 101 10.7 8.5 126
Trial Lake 9970 5.4 6.0 90 6.6 7.8 85
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Basin Index (%) 66 103
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and
Total Precipitation values
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.