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 SUNDAY: DECEMBER 7 , 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 1.8 4.4 41 7.4 7.3 101
Blind Bull Sum 8880 5.2 5.6 93 4.9 5.8 84
Cottonwood Creek 7710 5.7 5.4 106 10.2 7.7 132
East Rim Divide 8010 1.4 2.2 64 4.4 3.7 119
Grand Targhee 9260 9.3 14.4 65 11.1 12.2 91
Granite Creek 6770 1.9 3.3 58 6.5 6.0 108
Grassy Lake 7330 4.7 7.2 65 9.6 10.7 90
Gros Ventre Summit 8760 2.9 3.8 76 4.5 4.6 98
Gunsight Pass 9830 4.2 3.8 111 6.9 5.0 138
Lewis Lake Divide 7880 4.0 7.4 54 10.2 11.2 91
Loomis Park 8240 2.5 3.5 71 5.3 5.6 95
Phillips Bench 8160 4.4 6.2 71 8.4 8.5 99
Salt River Summit 7630 1.3 2.4 54 5.8 4.8 121
Snake River Station 6900 2.2 3.8 58 7.2 7.6 95
Somsen Ranch 6830 1.6 2.5 64 6.3 5.5 115
Spring Creek Divide 9020 5.4 5.8 93 8.4 7.1 118
Thumb Divide 7970 2.4 3.7 65 6.0 6.0 100
Togwotee Pass 9590 6.6 7.7 86 10.4 8.5 122
Triple Peak 8520 5.7 5.6 102 8.7 7.6 114
Two Ocean Plateau 9240 7.7 9.4 82 9.1 9.4 97
Willow Creek 8060 4.8 6.6 73 11.4 10.8 106
Younts Peak 8340 1.7 4.6 37 8.2 5.2 158
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Basin Index (%) 73 106
MADISON HEADWATERS IN WYOMING
Black Bear 8160 5.6 9.4 60 9.3 11.4 82
Canyon 7870 1.3 3.2 41 5.0 5.2 96
Madison Plateau 7710 2.1 6.0 35 7.0 8.4 83
West Yellowstone 6680 .7 2.6 27 4.6 4.6 100
Whiskey Creek 6790 1.3 3.7 35 6.3 6.1 103
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Basin Index (%) 44 90
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 6.1 6.9 88 7.2 6.3 114
Canyon 7870 1.3 3.2 41 5.0 5.2 96
Evening Star 9040 7.0 8.1 86 11.9 10.6 112
Fisher Creek 9110 7.8 9.9 79 11.3 10.8 105
Monument Peak 8740 6.4 6.2 103 9.3 7.7 121
Northeast Entrance 7420 1.6 2.0 80 6.3 4.6 137
Parker Peak 9420 6.7 7.1 94 8.5 7.0 121
Sylvan Lake 8440 3.7 5.8 64 9.3 8.4 111
Thumb Divide 7970 2.4 3.7 65 6.0 6.0 100
Two Ocean Plateau 9240 7.7 9.4 82 9.1 9.4 97
White Mill 8730 6.6 7.2 92 8.4 7.8 108
Wolverine 7650 2.2 2.8 79 5.9 4.4 134
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Basin Index (%) 82 111
WIND RIVER
Burroughs Creek 8760 2.1 -M * 7.0 -M *
Castle Creek 8410 .8 2.2 36 3.2 3.2 100
Cold Springs 9640 1.4 2.5 56 5.2 3.6 144
Deer Park 9690 3.2 4.2 76 4.4 5.9 75
Hobbs Park 10080 2.4 4.4 55 4.1 4.6 89
Kirwin 9580 3.0 3.8 79 6.2 4.7 132
Little Warm 9370 3.2 3.1 103 6.0 4.6 130
South Pass 9040 2.6 4.4 59 4.0 5.2 77
St. Lawrence Alt 8610 .3 -M * 2.4 -M *
Togwotee Pass 9590 6.6 7.7 86 10.4 8.5 122
Townsend Creek 8720 .5 2.8 18 3.3 4.4 75
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Basin Index (%) 68 105
BIGHORN BASIN
Bald Mtn. 9360 6.3 6.4 98 7.3 5.8 126
Bear Trap Meadow 8200 .9 1.8 50 5.3 3.2 166
Bone Springs Div 9340 4.0 5.4 74 5.6 5.3 106
Grave Springs 8560 .7 2.0 35 5.1 3.5 146
Kirwin 9580 3.0 3.8 79 6.2 4.7 132
Marquette 8800 .6 2.8 21 3.3 4.0 82
Middle Powder 7760 1.6 2.7 59 5.8 3.9 149
Owl Creek 8990 .3 1.9 16 2.8 2.7 104
Powder River Pass 9480 3.8 3.7 103 7.3 4.9 149
Shell Creek 9570 4.1 5.4 76 6.4 5.0 128
Timber Creek 7910 .1 1.8 6 2.5 3.4 74
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Basin Index (%) 67 124
SHOSHONE RIVER
Blackwater 9840 7.6 8.4 90 8.4 7.6 111
Evening Star 9040 7.0 8.1 86 11.9 10.6 112
Marquette 8800 .6 2.8 21 3.3 4.0 82
Sylvan Lake 8440 3.7 5.8 64 9.3 8.4 111
Sylvan Road 7140 2.1 3.4 62 7.4 6.8 109
Younts Peak 8340 1.7 4.6 37 8.2 5.2 158
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Basin Index (%) 69 114
POWDER RIVER
Bear Trap Meadow 8200 .9 1.8 50 5.3 3.2 166
Cloud Peak Reservoir 9830 3.5 4.6 76 5.6 5.0 112
Grave Springs 8560 .7 2.0 35 5.1 3.5 146
Hansen Sawmill 8360 .9 2.0 45 5.7 3.2 178
Middle Powder 7760 1.6 2.7 59 5.8 3.9 149
Powder River Pass 9480 3.8 3.7 103 7.3 4.9 149
Soldier Park 8680 .6 1.6 38 3.8 3.5 109
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Basin Index (%) 65 142
TONGUE RIVER
Big Goose 8010 1.2 2.4 50 4.5 4.0 112
Bone Springs Div 9340 4.0 5.4 74 5.6 5.3 106
Burgess Junction 7900 1.6 3.2 50 4.7 4.4 107
Dome Lake 8890 1.6 3.5 46 5.2 4.7 111
Little Goose 8560 1.3 2.5 52 4.8 4.3 112
Sucker Creek 8840 2.1 3.6 58 5.6 5.1 110
Tie Creek 7050 .9 1.4 64 4.0 4.2 95
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Basin Index (%) 58 108
BELLE FOURCHE
Blind Park 6900 1.2 2.0 60 6.2 4.0 155
Cole Canyon 5930 1.2 1.3 92 6.0 3.3 182
North Rapid Creek 6150 .9 2.0 45 4.6 3.0 153
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Basin Index (%) 62 163
CHEYENNE RIVER BASIN
Blind Park 6900 1.2 2.0 60 6.2 4.0 155
North Rapid Creek 6150 .9 2.0 45 4.6 3.0 153
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Basin Index (%) 52 154
UPPER N. PLATTE
Arapaho Ridge 10960 4.2 6.2 68 5.9 7.0 84
Blackhall Mtn 9830 4.9 8.1 60 7.8 9.8 80
Cinnabar Park 9670 4.0 5.7 70 6.8 7.4 92
Columbine 9170 5.2 5.0 104 7.1 7.0 101
Divide Peak 8700 3.4 5.1 67 6.3 6.9 91
Joe Wright 10140 3.6 6.0 60 7.2 8.3 87
Laprele Creek 8370 1.5 2.0 75 5.2 4.2 124
Med Bow 10500 9.1 -M * 11.6 -M *
Never Summer 10300 4.2 5.8 72 3.3 6.0 55
North French Creek 10150 7.5 7.6 99 9.8 8.2 120
Old Battle 9850 6.6 8.4 79 11.8 10.2 116
Rawah 9100 1.5 3.2 47 3.7 5.9 63
Sage Creek Basin 7830 2.0 3.0 67 4.5 4.5 100
Sand Lake 10080 5.7 7.8 73 7.9 7.6 104
South Brush Creek 8480 2.2 3.0 73 4.4 4.9 90
Tower 10610 7.8 11.6 67 9.5 12.0 79
Webber Springs 9250 4.5 6.0 75 7.4 8.1 91
Whiskey Park 8950 6.0 5.8 103 10.9 8.4 130
Willow Creek Pass 9520 1.7 4.2 40 3.6 4.8 75
Zirkel 9320 5.5 5.8 95 9.3 9.6 97
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Basin Index (%) 74 94
SWEETWATER
Deer Park 9690 3.2 4.2 76 4.4 5.9 75
Larsen Creek 8880 1.2 1.8 67 4.2 4.4 95
South Pass 9040 2.6 4.4 59 4.0 5.2 77
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Basin Index (%) 67 81
LOWER N. PLATTE
Casper Mtn. 7940 .9 3.6 25 3.7 5.0 74
Laprele Creek 8370 1.5 2.0 75 5.2 4.2 124
Reno Hill 8410 .9 3.9 23 4.4 5.0 88
Windy Peak 7900 .7 1.8 39 4.0 3.7 108
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Basin Index (%) 35 97
LARAMIE RIVER
Brooklyn Lake 10250 4.0 5.0 80 7.0 6.3 111
Cinnabar Park 9670 4.0 5.7 70 6.8 7.4 92
Crow Creek 8320 .6 2.3 26 2.7 3.7 73
Deadman Hill 10240 -M 5.1 * 4.1 5.6 73
Rawah 9100 1.5 3.2 47 3.7 5.9 63
Roach 9710 2.8 4.6 61 5.0 6.0 83
Windy Peak 7900 .7 1.8 39 4.0 3.7 108
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Basin Index (%) 60 86
S. PLATTE
Crow Creek 8320 .6 2.3 26 2.7 3.7 73
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Basin Index (%) 26 73
LITTLE SNAKE RIVER
Battle Mountain 7460 1.7 2.2 77 6.0 4.8 125
Divide Peak 8700 3.4 5.1 67 6.3 6.9 91
Elk River 8710 3.6 3.8 95 7.4 5.8 128
Elkhead Divide 8780 3.0 -M * 7.1 -M *
Little Snake River 8930 5.4 5.9 92 10.9 10.2 107
Old Battle 9850 6.6 8.4 79 11.8 10.2 116
Sage Creek Basin 7830 2.0 3.0 67 4.5 4.5 100
Sandstone RS 8150 2.9 2.5 116 5.8 5.4 107
Whiskey Park 8950 6.0 5.8 103 10.9 8.4 130
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Basin Index (%) 86 113
UPPER GREEN RIVER
Big Sandy Opening 9100 3.1 3.8 82 3.8 4.0 95
Blind Bull Sum 8880 5.2 5.6 93 4.9 5.8 84
East Rim Divide 8010 1.4 2.2 64 4.4 3.7 119
Elkhart Park G.S. 9410 2.8 3.5 80 4.7 4.4 107
Gros Ventre Summit 8760 2.9 3.8 76 4.5 4.6 98
Gunsight Pass 9830 4.2 3.8 111 6.9 5.0 138
Indian Creek 9400 5.3 5.8 91 7.6 6.0 127
Kendall R.S. 7790 1.5 2.9 52 5.3 4.4 120
Larsen Creek 8880 1.2 1.8 67 4.2 4.4 95
Loomis Park 8240 2.5 3.5 71 5.3 5.6 95
New Fork Lake 8380 2.4 2.8 86 4.8 3.7 130
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 1.4 2.7 52 4.7 4.3 109
Spring Creek Divide 9020 5.4 5.8 93 8.4 7.1 118
Triple Peak 8520 5.7 5.6 102 8.7 7.6 114
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Basin Index (%) 84 111
LOWER GREEN RIVER
Blacks Fork Jct 8880 2.0 2.0 100 4.1 3.8 108
Buck Pasture 9620 3.6 -M * 5.7 -M *
EF Blacks Fork GS 9360 1.8 2.2 82 4.5 4.0 112
Hams Fork 7870 2.8 2.4 117 5.0 3.7 135
Henrys Fork 10180 -M -M * 5.1 -M *
Hewinta 9510 1.0 2.0 50 4.7 4.8 98
Hickerson Park 9130 1.3 1.8 72 4.0 4.0 100
Hole-in-Rock 9170 .9 1.8 50 4.4 3.8 116
Indian Creek 9400 5.3 5.8 91 7.6 6.0 127
Kelley R.S. 8240 3.3 3.4 97 7.2 5.1 141
Spirit Lk 10240 3.5 3.5 100 7.5 6.1 123
Steel Creek Park 10140 3.9 4.0 98 5.8 5.6 104
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Basin Index (%) 89 117
UPPER BEAR RIVER
Bear River RS 8510 .5 2.0 25 3.7 4.0 92
Bug Lake 7980 3.0 3.7 81 7.2 5.8 124
Burts Miller Ranch 7900 .5 1.6 31 3.9 2.6 150
Chalk Creek #1 9160 2.6 5.4 48 6.8 7.4 92
Giveout 6940 1.1 1.4 79 5.2 4.0 130
Hayden Fork 9160 1.4 3.0 47 5.9 6.0 98
Kelley R.S. 8240 3.3 3.4 97 7.2 5.1 141
Lily Lake 9130 1.4 2.8 50 4.2 5.5 76
Monte Cristo 8930 3.9 5.8 67 8.8 7.0 126
Salt River Summit 7630 1.3 2.4 54 5.8 4.8 121
Spring Creek Divide 9020 5.4 5.8 93 8.4 7.1 118
Trial Lake 9970 4.7 5.2 90 5.7 6.0 95
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Basin Index (%) 68 111
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.
