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 WEDNESDAY: MARCH 12 , 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 16.2 15.7 103 16.8 17.6 95
Blind Bull Sum 8880 23.1 20.8 111 16.7 15.8 106
Cottonwood Creek 7710 22.4 19.0 118 24.7 21.4 115
East Rim Divide 8010 9.8 9.7 101 9.8 10.0 98
Grand Targhee 9260 34.7 34.8 100 25.4 26.8 95
Granite Creek 6770 16.3 15.2 107 15.7 16.3 96
Grassy Lake 7330 26.6 27.8 96 29.3 30.5 96
Gros Ventre Summit 8760 10.6 10.6 100 10.3 10.2 101
Gunsight Pass 9830 12.4 11.1 112 11.5 11.9 97
Lewis Lake Divide 7880 25.8 26.0 99 28.4 28.0 101
Loomis Park 8240 14.4 13.5 107 14.3 14.6 98
Phillips Bench 8160 21.5 22.2 97 21.8 23.2 94
Salt River Summit 7630 14.3 11.6 123 12.1 13.4 90
Snake River Station 6900 17.5 15.4 114 18.4 19.1 96
Somsen Ranch 6830 12.5 11.5 109 14.0 14.4 97
Spring Creek Divide 9020 23.0 21.0 110 22.2 20.6 108
Thumb Divide 7970 11.5 13.6 85 11.0 14.9 74
Togwotee Pass 9590 19.6 20.8 94 21.1 21.9 96
Triple Peak 8520 -M 21.0 * -M 22.2 *
Two Ocean Plateau 9240 -M 24.4 * -M 23.0 *
Willow Creek 8060 31.2 26.2 119 30.3 28.2 107
Younts Peak 8340 11.9 13.1 91 11.5 12.4 93
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Basin Index (%) 104 98
MADISON HEADWATERS IN WYOMING
Black Bear 8160 26.9 32.6 83 26.8 32.1 83
Canyon 7870 10.2 -M * 10.7 -M *
Madison Plateau 7710 16.5 19.4 85 18.6 21.6 86
West Yellowstone 6680 9.1 9.8 93 10.0 12.6 79
Whiskey Creek 6790 12.3 13.9 88 15.8 17.1 92
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Basin Index (%) 86 85
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 16.6 19.2 86 15.6 17.6 89
Canyon 7870 10.2 -M * 10.7 -M *
Evening Star 9040 20.2 22.6 89 22.2 24.7 90
Fisher Creek 9110 23.0 27.8 83 24.7 27.6 89
Monument Peak 8740 14.8 18.0 82 17.3 18.1 96
Northeast Entrance 7420 9.2 9.3 99 10.1 11.4 89
Parker Peak 9420 18.6 18.4 101 18.4 17.4 106
Sylvan Lake 8440 15.7 17.0 92 17.6 19.4 91
Thumb Divide 7970 11.5 13.6 85 11.0 14.9 74
Two Ocean Plateau 9240 -M 24.4 * -M 23.0 *
White Mill 8730 18.4 20.9 88 17.3 20.2 86
Wolverine 7650 10.8 10.8 100 12.3 11.0 112
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Basin Index (%) 89 91
WIND RIVER
Burroughs Creek 8760 9.8 -M * 13.0 -M *
Castle Creek 8410 5.6 6.9 81 6.2 7.5 83
Cold Springs 9640 6.7 6.3 106 6.9 7.4 93
Deer Park 9690 15.2 11.4 133 16.5 14.4 115
Hobbs Park 10080 12.0 11.3 106 12.0 10.1 119
Kirwin 9580 8.3 9.2 90 10.0 10.0 100
Little Warm 9370 9.3 8.7 107 11.2 10.2 110
South Pass 9040 13.0 12.4 105 14.3 12.6 113
St. Lawrence Alt 8610 4.6 -M * 7.3 -M *
Togwotee Pass 9590 19.6 20.8 94 21.1 21.9 96
Townsend Creek 8720 8.4 7.6 111 10.5 8.6 122
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Basin Index (%) 104 106
BIGHORN BASIN
Bald Mtn. 9360 17.4 16.0 109 14.2 13.4 106
Bear Trap Meadow 8200 5.2 5.7 91 5.1 6.6 77
Bone Springs Div 9340 12.5 13.8 91 9.4 12.8 73
Grave Springs 8560 6.9 7.3 95 8.1 7.6 107
Kirwin 9580 8.3 9.2 90 10.0 10.0 100
Marquette 8800 7.2 5.8 124 8.4 7.2 117
Middle Powder 7760 7.8 8.8 89 6.4 8.4 76
Owl Creek 8990 4.4 4.6 96 5.2 5.0 104
Powder River Pass 9480 6.3 9.2 68 8.0 10.2 78
Shell Creek 9570 10.0 12.6 79 9.2 11.3 81
Timber Creek 7910 4.5 4.1 110 5.2 6.0 87
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Basin Index (%) 93 91
SHOSHONE RIVER
Blackwater 9840 19.0 19.4 98 18.2 18.4 99
Evening Star 9040 20.2 22.6 89 22.2 24.7 90
Marquette 8800 7.2 5.8 124 8.4 7.2 117
Sylvan Lake 8440 15.7 17.0 92 17.6 19.4 91
Sylvan Road 7140 9.6 10.4 92 10.9 14.6 75
Younts Peak 8340 11.9 13.1 91 11.5 12.4 93
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Basin Index (%) 95 92
POWDER RIVER
Bear Trap Meadow 8200 5.2 5.7 91 5.1 6.6 77
Cloud Peak Reservoir 9830 8.8 12.3 72 9.1 11.0 83
Grave Springs 8560 6.9 7.3 95 8.1 7.6 107
Hansen Sawmill 8360 3.8 5.8 66 5.2 6.6 79
Middle Powder 7760 7.8 8.8 89 6.4 8.4 76
Powder River Pass 9480 6.3 9.2 68 8.0 10.2 78
Soldier Park 8680 2.9 5.8 50 5.2 7.7 68
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Basin Index (%) 76 81
TONGUE RIVER
Big Goose 8010 5.3 6.7 79 6.8 8.2 83
Bone Springs Div 9340 12.5 13.8 91 9.4 12.8 73
Burgess Junction 7900 8.7 9.1 96 9.6 9.9 97
Dome Lake 8890 7.4 9.6 77 6.7 10.0 67
Little Goose 8560 6.7 7.8 86 8.1 9.7 84
Sucker Creek 8840 9.4 10.2 92 11.5 11.6 99
Tie Creek 7050 6.2 4.8 129 8.8 8.8 100
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Basin Index (%) 91 86
BELLE FOURCHE
Blind Park 6900 5.3 6.8 78 7.7 9.2 84
Cole Canyon 5930 5.6 5.1 110 7.1 7.4 96
North Rapid Creek 6150 4.2 6.2 68 6.2 7.4 84
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Basin Index (%) 83 88
CHEYENNE RIVER BASIN
Blind Park 6900 5.3 6.8 78 7.7 9.2 84
North Rapid Creek 6150 4.2 6.2 68 6.2 7.4 84
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Basin Index (%) 73 84
UPPER N. PLATTE
Arapaho Ridge 10960 18.4 18.3 101 17.8 18.4 97
Blackhall Mtn 9830 25.2 24.0 105 26.1 23.6 111
Cinnabar Park 9670 16.1 18.2 88 18.8 20.6 91
Columbine 9170 23.5 20.7 114 23.4 20.7 113
Divide Peak 8700 14.8 16.9 88 17.1 18.2 94
Joe Wright 10140 19.5 18.0 108 23.9 22.0 109
Laprele Creek 8370 7.5 8.2 91 8.3 9.6 86
Med Bow 10500 34.0 -M * 29.2 -M *
Never Summer 10300 16.5 17.1 96 13.7 14.4 95
North French Creek 10150 26.6 23.9 111 25.2 22.1 114
Old Battle 9850 24.3 25.8 94 24.5 28.4 86
Rawah 9100 9.6 9.6 100 12.1 13.1 92
Sage Creek Basin 7830 10.4 12.4 84 10.7 11.1 96
Sand Lake 10080 24.1 22.4 108 23.4 20.5 114
South Brush Creek 8480 9.7 10.3 94 9.6 11.4 84
Tower 10610 37.1 37.8 98 35.7 34.3 104
Webber Springs 9250 16.7 18.8 89 19.2 21.2 91
Whiskey Park 8950 23.4 23.4 100 24.5 23.6 104
Willow Creek Pass 9520 11.4 11.0 104 11.4 11.5 99
Zirkel 9320 22.7 24.9 91 26.8 26.5 101
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Basin Index (%) 99 100
SWEETWATER
Deer Park 9690 15.2 11.4 133 16.5 14.4 115
Larsen Creek 8880 6.9 10.1 68 10.7 11.1 96
South Pass 9040 13.0 12.4 105 14.3 12.6 113
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Basin Index (%) 104 109
LOWER N. PLATTE
Casper Mtn. 7940 7.7 10.8 71 9.0 11.0 82
Laprele Creek 8370 7.5 8.2 91 8.3 9.6 86
Reno Hill 8410 9.6 11.4 84 11.3 11.9 95
Windy Peak 7900 6.1 6.7 91 6.3 8.0 79
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Basin Index (%) 83 86
LARAMIE RIVER
Brooklyn Lake 10250 20.7 17.2 120 21.0 18.2 115
Cinnabar Park 9670 16.1 18.2 88 18.8 20.6 91
Crow Creek 8320 3.1 6.4 48 6.6 8.3 80
Deadman Hill 10240 15.2 14.3 106 15.6 14.4 108
Rawah 9100 9.6 9.6 100 12.1 13.1 92
Roach 9710 12.2 13.1 93 14.9 15.6 96
Windy Peak 7900 6.1 6.7 91 6.3 8.0 79
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Basin Index (%) 97 97
S. PLATTE
Crow Creek 8320 3.1 6.4 48 6.6 8.3 80
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Basin Index (%) 48 80
LITTLE SNAKE RIVER
Battle Mountain 7460 9.6 10.6 91 13.0 13.0 100
Divide Peak 8700 14.8 16.9 88 17.1 18.2 94
Elk River 8710 14.8 16.6 89 17.0 16.2 105
Elkhead Divide 8780 14.6 -M * 16.2 -M *
Little Snake River 8930 21.8 23.2 94 27.0 27.6 98
Old Battle 9850 24.3 25.8 94 24.5 28.4 86
Sage Creek Basin 7830 10.4 12.4 84 10.7 11.1 96
Sandstone RS 8150 12.6 11.6 109 12.6 15.8 80
Whiskey Park 8950 23.4 23.4 100 24.5 23.6 104
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Basin Index (%) 94 95
UPPER GREEN RIVER
Big Sandy Opening 9100 9.2 11.0 84 9.4 10.6 89
Blind Bull Sum 8880 23.1 20.8 111 16.7 15.8 106
East Rim Divide 8010 9.8 9.7 101 9.8 10.0 98
Elkhart Park G.S. 9410 10.7 10.4 103 10.5 10.8 97
Gros Ventre Summit 8760 10.6 10.6 100 10.3 10.2 101
Gunsight Pass 9830 12.4 11.1 112 11.5 11.9 97
Indian Creek 9400 22.6 20.2 112 19.6 17.1 115
Kendall R.S. 7790 12.8 10.8 119 12.5 11.6 108
Larsen Creek 8880 6.9 10.1 68 10.7 11.1 96
Loomis Park 8240 14.4 13.5 107 14.3 14.6 98
New Fork Lake 8380 9.5 9.3 102 -M 9.2 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 13.1 11.5 114 14.2 12.2 116
Spring Creek Divide 9020 23.0 21.0 110 22.2 20.6 108
Triple Peak 8520 -M 21.0 * -M 22.2 *
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Basin Index (%) 105 103
LOWER GREEN RIVER
Blacks Fork Jct 8880 9.9 7.4 134 11.6 10.1 115
Buck Pasture 9620 12.2 -M * 16.0 -M *
EF Blacks Fork GS 9360 9.0 10.0 90 10.7 9.4 114
Hams Fork 7870 11.6 10.0 116 11.4 9.4 121
Henrys Fork 10180 -M -M * 11.1 -M *
Hewinta 9510 9.3 8.7 107 12.6 11.0 115
Hickerson Park 9130 6.1 6.6 92 8.1 8.6 94
Hole-in-Rock 9170 5.1 6.2 82 8.3 8.3 100
Indian Creek 9400 22.6 20.2 112 19.6 17.1 115
Kelley R.S. 8240 15.5 12.8 121 15.8 14.2 111
Spirit Lk 10240 10.4 9.9 105 11.6 13.8 84
Steel Creek Park 10140 13.8 12.5 110 15.1 13.0 116
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Basin Index (%) 109 109
UPPER BEAR RIVER
Bear River RS 8510 8.6 8.0 108 11.2 9.7 115
Bug Lake 7980 16.8 16.4 102 16.4 15.2 108
Burts Miller Ranch 7900 5.7 5.7 100 10.2 6.2 165
Chalk Creek #1 9160 16.8 19.6 86 19.6 19.5 101
Giveout 6940 8.4 8.2 102 10.8 10.2 106
Hayden Fork 9160 12.4 13.0 95 18.3 17.4 105
Kelley R.S. 8240 15.5 12.8 121 15.8 14.2 111
Lily Lake 9130 11.0 11.0 100 13.0 13.4 97
Monte Cristo 8930 22.1 22.8 97 20.9 21.7 96
Salt River Summit 7630 14.3 11.6 123 12.1 13.4 90
Spring Creek Divide 9020 23.0 21.0 110 22.2 20.6 108
Trial Lake 9970 21.7 19.2 113 21.3 18.8 113
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Basin Index (%) 104 106
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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.
