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: JANUARY 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 7.9 9.8 81 8.8 12.2 72
Blind Bull Sum 8890 11.0 12.6 87 8.3 10.6 78
Cottonwood Creek 7710 12.6 10.8 117 14.3 13.0 110
East Rim Divide 8010 5.0 5.6 89 5.2 6.6 79
Grand Targhee 9260 21.5 23.0 93 16.0 18.0 89
Granite Creek 6770 8.3 8.6 97 8.6 11.2 77
Grassy Lake 7330 13.7 16.2 85 16.7 19.4 86
Gros Ventre Summit 8760 5.1 7.2 71 5.1 6.9 74
Gunsight Pass 9830 6.9 7.2 96 6.6 7.7 86
Lewis Lake Divide 7880 13.3 15.9 84 15.3 19.2 80
Loomis Park 8240 7.2 8.1 89 7.4 9.4 79
Phillips Bench 8160 11.2 13.2 85 11.7 14.9 79
Salt River Summit 7630 6.3 6.4 98 5.9 8.5 69
Snake River Station 6900 8.2 9.0 91 9.1 13.5 67
Somsen Ranch 6830 6.7 6.8 99 8.2 9.4 87
Spring Creek Divide 9020 11.2 12.6 89 12.1 12.6 96
Thumb Divide 7970 5.8 7.8 74 5.9 9.5 62
Togwotee Pass 9590 10.6 12.9 82 11.9 13.4 89
Triple Peak 8520 12.7 11.6 109 13.0 13.2 98
Two Ocean Plateau 9240 11.9 16.6 72 10.5 15.3 69
Willow Creek 8060 16.4 14.6 112 17.8 17.6 101
Younts Peak 8340 4.3 8.2 52 5.4 8.2 66
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Basin Index (%) 89 83
MADISON HEADWATERS IN WYOMING
Black Bear 8160 16.1 20.8 77 17.6 21.0 84
Canyon 7870 6.1 -M * 6.5 -M *
Madison Plateau 7710 9.6 12.0 80 12.0 13.7 88
West Yellowstone 6680 5.3 6.0 88 6.4 8.2 78
Whiskey Creek 6790 7.1 8.0 89 10.2 11.2 91
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Basin Index (%) 81 85
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 9.2 12.8 72 8.4 11.8 71
Canyon 7870 6.1 -M * 6.5 -M *
Evening Star 9040 10.2 15.0 68 12.3 16.5 75
Fisher Creek 9110 13.9 18.4 76 15.6 18.4 85
Monument Peak 8740 8.6 11.7 74 10.6 12.8 83
Northeast Entrance 7420 5.6 5.2 108 6.4 7.4 86
Parker Peak 9420 10.8 11.8 92 11.1 11.8 94
Sylvan Lake 8440 8.6 10.8 80 11.0 13.3 83
Thumb Divide 7970 5.8 7.8 74 5.9 9.5 62
Two Ocean Plateau 9240 11.9 16.6 72 10.5 15.3 69
White Mill 8730 10.8 14.0 77 10.4 13.4 78
Wolverine 7650 5.9 6.6 89 7.0 7.5 93
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Basin Index (%) 78 79
WIND RIVER
Burroughs Creek 8760 4.4 -M * 6.5 -M *
Castle Creek 8410 2.2 3.9 56 2.9 5.1 57
Cold Springs 9640 3.5 4.2 83 3.5 5.5 64
Deer Park 9690 6.7 7.0 96 8.0 8.9 90
Hobbs Park 10080 4.9 7.1 69 5.5 6.7 82
Kirwin 9580 3.3 6.2 53 4.3 7.1 61
Little Warm 9370 4.4 5.6 79 5.6 7.3 77
South Pass 9040 5.4 6.8 79 6.7 8.2 82
St. Lawrence Alt 8610 1.4 -M * 3.3 -M *
Togwotee Pass 9590 10.6 12.9 82 11.9 13.4 89
Townsend Creek 8720 3.6 4.4 82 5.4 6.2 87
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Basin Index (%) 77 79
BIGHORN BASIN
Bald Mtn. 9360 11.8 10.2 116 9.5 8.9 107
Bear Trap Meadow 8200 3.4 3.4 100 3.7 4.8 77
Bone Springs Div 9340 7.1 9.0 79 5.8 8.4 69
Grave Springs 8560 4.6 4.0 115 5.6 5.0 112
Kirwin 9580 3.3 6.2 53 4.3 7.1 61
Marquette 8800 3.1 3.8 82 4.1 5.4 76
Middle Powder 7760 5.5 5.1 108 4.7 5.5 85
Owl Creek 8990 1.9 3.0 63 2.5 3.5 71
Powder River Pass 9480 4.0 6.2 65 5.6 7.4 76
Shell Creek 9570 7.4 8.4 88 6.7 7.8 86
Timber Creek 7910 2.0 2.6 77 2.4 4.4 55
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Basin Index (%) 87 80
SHOSHONE RIVER
Blackwater 9840 10.0 13.4 75 9.6 12.6 76
Evening Star 9040 10.2 15.0 68 12.3 16.5 75
Marquette 8800 3.1 3.8 82 4.1 5.4 76
Sylvan Lake 8440 8.6 10.8 80 11.0 13.3 83
Sylvan Road 7140 4.8 6.9 70 6.2 10.6 58
Younts Peak 8340 4.3 8.2 52 5.4 8.2 66
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Basin Index (%) 71 73
POWDER RIVER
Bear Trap Meadow 8200 3.4 3.4 100 3.7 4.8 77
Cloud Peak Reservoir 9830 5.9 7.3 81 6.1 7.4 82
Grave Springs 8560 4.6 4.0 115 5.6 5.0 112
Hansen Sawmill 8360 2.4 3.8 63 3.3 4.8 69
Middle Powder 7760 5.5 5.1 108 4.7 5.5 85
Powder River Pass 9480 4.0 6.2 65 5.6 7.4 76
Soldier Park 8680 2.0 3.2 62 3.6 5.0 72
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Basin Index (%) 84 82
TONGUE RIVER
Big Goose 8010 3.6 4.0 90 4.9 5.5 89
Bone Springs Div 9340 7.1 9.0 79 5.8 8.4 69
Burgess Junction 7900 6.0 5.4 111 7.0 6.7 104
Dome Lake 8890 4.7 5.9 80 4.6 6.8 68
Little Goose 8560 4.6 4.8 96 5.8 6.4 91
Sucker Creek 8840 6.4 6.4 100 8.1 7.4 109
Tie Creek 7050 3.9 2.8 139 6.1 5.9 103
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Basin Index (%) 95 90
BELLE FOURCHE
Blind Park 6900 3.9 4.0 98 6.1 5.6 109
Cole Canyon 5930 4.1 2.8 146 5.3 5.0 106
North Rapid Creek 6150 3.4 3.7 92 4.6 4.4 105
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Basin Index (%) 109 107
CHEYENNE RIVER BASIN
Blind Park 6900 3.9 4.0 98 6.1 5.6 109
North Rapid Creek 6150 3.4 3.7 92 4.6 4.4 105
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Basin Index (%) 95 107
UPPER N. PLATTE
Arapaho Ridge 10960 11.1 11.6 96 11.3 12.4 91
Blackhall Mtn 9830 14.0 14.2 99 15.5 15.9 97
Cinnabar Park 9670 9.2 11.6 79 11.0 13.3 83
Columbine 9170 -M 12.1 * -M 13.0 *
Divide Peak 8700 9.0 9.8 92 11.3 12.1 93
Joe Wright 10140 10.5 10.0 105 14.6 13.4 109
Laprele Creek 8370 5.0 4.6 109 5.4 6.2 87
Med Bow 10500 18.6 -M * 17.3 -M *
Never Summer 10300 9.0 10.3 87 7.9 9.6 82
North French Creek 10150 16.5 14.7 112 15.7 14.9 105
Old Battle 9850 13.9 15.8 88 14.1 18.6 76
Rawah 9100 5.8 6.2 94 8.2 9.2 89
Sage Creek Basin 7830 5.9 6.8 87 7.2 7.7 94
Sand Lake 10080 13.1 14.0 94 13.1 12.6 104
South Brush Creek 8480 6.2 6.2 100 6.8 7.8 87
Tower 10610 22.2 21.0 106 22.6 21.6 105
Webber Springs 9250 9.1 11.2 81 10.9 14.3 76
Whiskey Park 8950 13.6 13.4 101 15.5 16.4 95
Willow Creek Pass 9520 6.1 6.8 90 6.3 7.1 89
Zirkel 9320 10.9 15.0 73 14.6 17.0 86
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Basin Index (%) 94 92
SWEETWATER
Deer Park 9690 6.7 7.0 96 8.0 8.9 90
Larsen Creek 8880 2.6 4.0 65 6.1 6.7 91
South Pass 9040 5.4 6.8 79 6.7 8.2 82
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Basin Index (%) 83 87
LOWER N. PLATTE
Casper Mtn. 7940 4.6 6.2 74 5.9 7.4 80
Laprele Creek 8370 5.0 4.6 109 5.4 6.2 87
Reno Hill 8410 6.4 6.7 96 8.2 7.7 106
Windy Peak 7900 3.5 3.8 92 3.8 5.5 69
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Basin Index (%) 92 87
LARAMIE RIVER
Brooklyn Lake 10250 10.9 11.1 98 11.5 11.3 102
Cinnabar Park 9670 9.2 11.6 79 11.0 13.3 83
Crow Creek 8320 1.4 4.4 32 3.6 5.9 61
Deadman Hill 10240 8.9 9.2 97 9.6 9.3 103
Rawah 9100 5.8 6.2 94 8.2 9.2 89
Roach 9710 6.7 8.7 77 8.7 10.5 83
Windy Peak 7900 3.5 3.8 92 3.8 5.5 69
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Basin Index (%) 84 87
S. PLATTE
Crow Creek 8320 1.4 4.4 32 3.6 5.9 61
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Basin Index (%) 32 61
LITTLE SNAKE RIVER
Battle Mountain 7460 6.4 6.2 103 9.4 8.4 112
Divide Peak 8700 9.0 9.8 92 11.3 12.1 93
Elk River 8710 8.3 9.0 92 11.0 10.4 106
Elkhead Divide 8780 8.2 -M * 10.2 -M *
Little Snake River 8930 11.6 13.4 87 16.6 18.8 88
Old Battle 9850 13.9 15.8 88 14.1 18.6 76
Sage Creek Basin 7830 5.9 6.8 87 7.2 7.7 94
Sandstone RS 8150 7.9 7.0 113 8.3 9.9 84
Whiskey Park 8950 13.6 13.4 101 15.5 16.4 95
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Basin Index (%) 94 91
UPPER GREEN RIVER
Big Sandy Opening 9100 4.8 7.0 69 5.1 7.1 72
Blind Bull Sum 8890 11.0 12.6 87 8.3 10.6 78
East Rim Divide 8010 5.0 5.6 89 5.2 6.6 79
Elkhart Park G.S. 9410 6.0 6.6 91 6.1 6.9 88
Gros Ventre Summit 8760 5.1 7.2 71 5.1 6.9 74
Gunsight Pass 9830 6.9 7.2 96 6.6 7.7 86
Indian Creek 9400 10.9 11.8 92 10.1 10.6 95
Kendall R.S. 7790 5.8 6.6 88 5.9 7.6 78
Larsen Creek 8880 2.6 4.0 65 6.1 6.7 91
Loomis Park 8240 7.2 8.1 89 7.4 9.4 79
New Fork Lake 8380 5.0 5.7 88 -M 6.2 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 6.0 6.6 91 7.3 7.6 96
Spring Creek Divide 9020 11.2 12.6 89 12.1 12.6 96
Triple Peak 8520 12.7 11.6 109 13.0 13.2 98
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Basin Index (%) 89 87
LOWER GREEN RIVER
Blacks Fork Jct 8880 6.3 3.8 166 7.9 6.6 120
Buck Pasture 9620 7.2 -M * 10.7 -M *
EF Blacks Fork GS 9360 5.4 4.4 123 7.9 5.7 139
Hams Fork 7870 5.5 5.6 98 6.0 6.0 100
Henrys Fork 10180 -M -M * 7.8 -M *
Hewinta 9510 5.4 4.8 112 8.9 7.6 117
Hickerson Park 9130 3.8 3.4 112 6.1 5.6 109
Hole-in-Rock 9170 3.4 3.6 94 6.2 5.6 111
Indian Creek 9400 10.9 11.8 92 10.1 10.6 95
Kelley R.S. 8240 7.1 7.2 99 8.2 9.3 88
Spirit Lk 10240 6.0 5.9 102 7.7 8.7 89
Steel Creek Park 10140 9.1 7.0 130 10.5 8.7 121
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Basin Index (%) 109 107
UPPER BEAR RIVER
Bear River RS 8510 4.9 4.2 117 7.8 6.6 118
Bug Lake 7980 8.0 8.0 100 8.4 9.5 88
Burts Miller Ranch 7900 -M 3.2 * 7.1 4.6 154
Chalk Creek #1 9160 8.6 10.9 79 11.9 12.4 96
Giveout 6940 3.8 4.5 84 5.2 6.6 79
Hayden Fork 9160 6.6 6.8 97 11.9 10.5 113
Kelley R.S. 8240 7.1 7.2 99 8.2 9.3 88
Lily Lake 9130 6.2 6.4 97 8.7 8.5 102
Monte Cristo 8930 10.5 12.6 83 11.3 13.2 86
Salt River Summit 7630 6.3 6.4 98 5.9 8.5 69
Spring Creek Divide 9020 11.2 12.6 89 12.1 12.6 96
Trial Lake 9970 9.7 10.2 95 11.4 11.6 98
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Basin Index (%) 92 96
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Median (or Average) 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 (or Average) represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median (or Average) value for those sites on this day.
The TOTAL PRECIPITATION Percent of Median (or Average) represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Median (or Average) value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1991-2020.
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 or average for the day is less than 10% of the maximum
median or average value for the year.
* Basin - More than half of the stations for a basin with medians (or averages) report missing or invalid data
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians or averages and the resulting fraction
multiplied by 100.
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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.
