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: MARCH 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 16.2 15.3 106 16.8 17.4 97
Blind Bull Sum 8880 22.6 20.2 112 16.6 15.8 105
Cottonwood Creek 7710 22.6 18.6 122 24.6 20.8 118
East Rim Divide 8010 9.7 9.5 102 9.8 9.6 102
Grand Targhee 9260 34.6 33.7 103 25.3 26.4 96
Granite Creek 6770 16.0 15.1 106 15.6 16.2 96
Grassy Lake 7330 26.4 27.1 97 29.2 29.4 99
Gros Ventre Summit 8760 10.6 10.4 102 10.3 10.2 101
Gunsight Pass 9830 12.2 10.8 113 11.4 11.5 99
Lewis Lake Divide 7880 25.4 25.2 101 28.3 27.4 103
Loomis Park 8240 14.3 13.4 107 14.2 14.4 99
Phillips Bench 8160 21.5 21.8 99 21.6 22.8 95
Salt River Summit 7630 14.2 11.2 127 11.9 13.0 92
Snake River Station 6900 17.3 15.0 115 18.3 18.8 97
Somsen Ranch 6830 13.0 11.0 118 14.0 14.1 99
Spring Creek Divide 9020 22.9 20.4 112 22.0 19.9 111
Thumb Divide 7970 11.5 13.3 86 11.0 14.4 76
Togwotee Pass 9590 19.6 20.0 98 21.0 21.4 98
Triple Peak 8520 -M 20.2 * -M 21.3 *
Two Ocean Plateau 9240 -M 23.8 * -M 21.8 *
Willow Creek 8060 30.2 24.8 122 30.2 27.6 109
Younts Peak 8340 11.9 12.9 92 11.3 12.3 92
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Basin Index (%) 107 100
MADISON HEADWATERS IN WYOMING
Black Bear 8160 26.9 31.9 84 26.7 31.5 85
Canyon 7870 10.2 -M * 10.7 -M *
Madison Plateau 7710 16.4 18.6 88 18.6 20.8 89
West Yellowstone 6680 8.8 9.3 95 10.0 11.9 84
Whiskey Creek 6790 12.3 13.1 94 15.8 16.6 95
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Basin Index (%) 88 88
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 16.5 18.5 89 15.4 17.2 90
Canyon 7870 10.2 -M * 10.7 -M *
Evening Star 9040 20.2 22.5 90 22.1 24.5 90
Fisher Creek 9110 23.0 27.2 85 24.4 26.6 92
Monument Peak 8740 14.7 16.9 87 17.1 17.8 96
Northeast Entrance 7420 9.2 9.3 99 10.1 11.2 90
Parker Peak 9420 18.4 18.3 101 18.2 16.9 108
Sylvan Lake 8440 15.3 16.6 92 17.5 19.0 92
Thumb Divide 7970 11.5 13.3 86 11.0 14.4 76
Two Ocean Plateau 9240 -M 23.8 * -M 21.8 *
White Mill 8730 18.4 20.4 90 17.1 19.0 90
Wolverine 7650 10.7 10.6 101 12.2 10.5 116
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Basin Index (%) 91 93
WIND RIVER
Burroughs Creek 8760 9.9 -M * 12.9 -M *
Castle Creek 8410 5.5 6.8 81 6.2 7.4 84
Cold Springs 9640 6.6 6.3 105 7.0 7.2 97
Deer Park 9690 15.2 10.8 141 16.4 13.5 121
Hobbs Park 10080 12.0 11.2 107 11.8 9.8 120
Kirwin 9580 8.2 8.8 93 9.9 9.4 105
Little Warm 9370 9.3 8.4 111 11.0 9.9 111
South Pass 9040 13.0 12.2 107 14.1 12.6 112
St. Lawrence Alt 8610 4.6 -M * 7.3 -M *
Togwotee Pass 9590 19.6 20.0 98 21.0 21.4 98
Townsend Creek 8720 8.4 7.3 115 10.5 8.4 125
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Basin Index (%) 107 108
BIGHORN BASIN
Bald Mtn. 9360 17.2 15.7 110 13.9 13.1 106
Bear Trap Meadow 8200 5.2 5.4 96 4.8 6.6 73
Bone Springs Div 9340 12.1 13.5 90 9.2 12.6 73
Grave Springs 8560 6.8 7.0 97 7.9 7.4 107
Kirwin 9580 8.2 8.8 93 9.9 9.4 105
Marquette 8800 7.3 5.6 130 8.3 7.1 117
Middle Powder 7760 7.7 8.4 92 6.3 7.8 81
Owl Creek 8990 4.4 4.5 98 5.0 4.9 102
Powder River Pass 9480 6.3 9.0 70 8.0 10.0 80
Shell Creek 9570 10.0 12.4 81 9.2 11.0 84
Timber Creek 7910 4.6 4.1 112 5.1 5.8 88
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Basin Index (%) 95 92
SHOSHONE RIVER
Blackwater 9840 18.8 18.8 100 17.6 18.0 98
Evening Star 9040 20.2 22.5 90 22.1 24.5 90
Marquette 8800 7.3 5.6 130 8.3 7.1 117
Sylvan Lake 8440 15.3 16.6 92 17.5 19.0 92
Sylvan Road 7140 9.9 10.4 95 11.0 14.4 76
Younts Peak 8340 11.9 12.9 92 11.3 12.3 92
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Basin Index (%) 96 92
POWDER RIVER
Bear Trap Meadow 8200 5.2 5.4 96 4.8 6.6 73
Cloud Peak Reservoir 9830 8.8 12.2 72 9.0 10.6 85
Grave Springs 8560 6.8 7.0 97 7.9 7.4 107
Hansen Sawmill 8360 3.7 5.6 66 5.1 6.6 77
Middle Powder 7760 7.7 8.4 92 6.3 7.8 81
Powder River Pass 9480 6.3 9.0 70 8.0 10.0 80
Soldier Park 8680 2.8 5.7 49 5.1 7.5 68
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Basin Index (%) 77 82
TONGUE RIVER
Big Goose 8010 5.3 6.4 83 6.8 8.0 85
Bone Springs Div 9340 12.1 13.5 90 9.2 12.6 73
Burgess Junction 7900 8.6 8.9 97 9.4 9.5 99
Dome Lake 8890 7.3 9.2 79 6.6 9.7 68
Little Goose 8560 6.8 7.8 87 7.9 9.6 82
Sucker Creek 8840 9.4 10.2 92 11.0 11.2 98
Tie Creek 7050 6.3 4.6 137 8.6 8.8 98
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Basin Index (%) 92 86
BELLE FOURCHE
Blind Park 6900 5.3 6.8 78 7.6 9.0 84
Cole Canyon 5930 5.9 4.8 123 7.1 7.4 96
North Rapid Creek 6150 4.1 6.0 68 6.1 7.4 82
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Basin Index (%) 87 87
CHEYENNE RIVER BASIN
Blind Park 6900 5.3 6.8 78 7.6 9.0 84
North Rapid Creek 6150 4.1 6.0 68 6.1 7.4 82
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Basin Index (%) 73 84
UPPER N. PLATTE
Arapaho Ridge 10960 18.2 17.8 102 17.7 17.8 99
Blackhall Mtn 9830 24.7 23.1 107 25.8 23.1 112
Cinnabar Park 9670 16.2 17.5 93 18.7 20.0 94
Columbine 9170 22.8 20.4 112 23.1 19.8 117
Divide Peak 8700 14.6 16.1 91 16.8 17.6 95
Joe Wright 10140 19.2 17.8 108 23.7 21.5 110
Laprele Creek 8370 7.4 7.8 95 8.2 9.2 89
Med Bow 10500 33.7 -M * 28.5 -M *
Never Summer 10300 16.2 16.4 99 13.5 14.2 95
North French Creek 10150 26.4 22.7 116 25.0 22.0 114
Old Battle 9850 23.8 25.2 94 24.2 27.8 87
Rawah 9100 9.5 9.6 99 12.0 12.8 94
Sage Creek Basin 7830 10.2 11.9 86 10.6 10.8 98
Sand Lake 10080 23.8 21.8 109 23.0 19.6 117
South Brush Creek 8480 9.6 10.2 94 9.6 11.2 86
Tower 10610 36.4 37.4 97 35.5 32.9 108
Webber Springs 9250 16.4 17.9 92 18.8 20.9 90
Whiskey Park 8950 22.9 22.8 100 24.2 23.4 103
Willow Creek Pass 9520 11.2 10.6 106 11.2 11.0 102
Zirkel 9320 21.9 25.0 88 26.3 26.4 100
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Basin Index (%) 100 102
SWEETWATER
Deer Park 9690 15.2 10.8 141 16.4 13.5 121
Larsen Creek 8880 6.8 10.0 68 10.6 11.0 96
South Pass 9040 13.0 12.2 107 14.1 12.6 112
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Basin Index (%) 106 111
LOWER N. PLATTE
Casper Mtn. 7940 7.7 10.6 73 8.8 10.6 83
Laprele Creek 8370 7.4 7.8 95 8.2 9.2 89
Reno Hill 8410 9.3 11.2 83 11.2 11.3 99
Windy Peak 7900 5.9 6.4 92 6.1 7.7 79
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Basin Index (%) 84 88
LARAMIE RIVER
Brooklyn Lake 10250 20.7 17.4 119 20.9 17.6 119
Cinnabar Park 9670 16.2 17.5 93 18.7 20.0 94
Crow Creek 8320 3.1 6.0 52 6.6 8.1 81
Deadman Hill 10240 15.0 13.6 110 15.5 13.9 112
Rawah 9100 9.5 9.6 99 12.0 12.8 94
Roach 9710 12.1 12.6 96 14.6 15.2 96
Windy Peak 7900 5.9 6.4 92 6.1 7.7 79
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Basin Index (%) 99 99
S. PLATTE
Crow Creek 8320 3.1 6.0 52 6.6 8.1 81
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Basin Index (%) 52 81
LITTLE SNAKE RIVER
Battle Mountain 7460 9.5 10.6 90 12.9 12.6 102
Divide Peak 8700 14.6 16.1 91 16.8 17.6 95
Elk River 8710 14.4 16.2 89 16.8 15.9 106
Elkhead Divide 8780 14.3 -M * 15.8 -M *
Little Snake River 8930 21.5 23.0 93 26.7 27.2 98
Old Battle 9850 23.8 25.2 94 24.2 27.8 87
Sage Creek Basin 7830 10.2 11.9 86 10.6 10.8 98
Sandstone RS 8150 12.3 11.2 110 12.5 15.5 81
Whiskey Park 8950 22.9 22.8 100 24.2 23.4 103
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Basin Index (%) 94 96
UPPER GREEN RIVER
Big Sandy Opening 9100 9.2 10.8 85 9.4 10.5 90
Blind Bull Sum 8880 22.6 20.2 112 16.6 15.8 105
East Rim Divide 8010 9.7 9.5 102 9.8 9.6 102
Elkhart Park G.S. 9410 10.5 10.2 103 10.4 10.6 98
Gros Ventre Summit 8760 10.6 10.4 102 10.3 10.2 101
Gunsight Pass 9830 12.2 10.8 113 11.4 11.5 99
Indian Creek 9400 22.4 19.2 117 19.5 16.4 119
Kendall R.S. 7790 12.7 10.5 121 12.3 11.4 108
Larsen Creek 8880 6.8 10.0 68 10.6 11.0 96
Loomis Park 8240 14.3 13.4 107 14.2 14.4 99
New Fork Lake 8380 9.5 9.2 103 -M 9.0 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 13.1 11.4 115 14.3 11.8 121
Spring Creek Divide 9020 22.9 20.4 112 22.0 19.9 111
Triple Peak 8520 -M 20.2 * -M 21.3 *
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Basin Index (%) 106 105
LOWER GREEN RIVER
Blacks Fork Jct 8880 9.9 7.0 141 11.6 9.8 118
Buck Pasture 9620 12.2 -M * 15.9 -M *
EF Blacks Fork GS 9360 8.9 9.8 91 10.7 9.1 118
Hams Fork 7870 11.6 9.8 118 11.4 9.1 125
Henrys Fork 10180 -M -M * 11.1 -M *
Hewinta 9510 9.0 8.6 105 12.6 10.8 117
Hickerson Park 9130 6.1 6.5 94 8.0 8.5 94
Hole-in-Rock 9170 4.7 5.9 80 8.3 8.0 104
Indian Creek 9400 22.4 19.2 117 19.5 16.4 119
Kelley R.S. 8240 15.4 12.4 124 15.7 14.0 112
Spirit Lk 10240 10.2 9.9 103 11.5 13.1 88
Steel Creek Park 10140 13.7 12.4 110 15.0 13.0 115
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Basin Index (%) 110 111
UPPER BEAR RIVER
Bear River RS 8510 8.6 7.8 110 11.2 9.4 119
Bug Lake 7980 16.7 15.5 108 16.3 15.0 109
Burts Miller Ranch 7900 5.5 5.7 96 10.2 6.0 170
Chalk Creek #1 9160 16.7 18.8 89 19.4 18.7 104
Giveout 6940 8.7 8.4 104 10.7 10.0 107
Hayden Fork 9160 12.4 12.4 100 18.3 16.6 110
Kelley R.S. 8240 15.4 12.4 124 15.7 14.0 112
Lily Lake 9130 10.7 10.5 102 12.9 12.8 101
Monte Cristo 8930 21.9 22.6 97 20.6 21.0 98
Salt River Summit 7630 14.2 11.2 127 11.9 13.0 92
Spring Creek Divide 9020 22.9 20.4 112 22.0 19.9 111
Trial Lake 9970 21.6 18.4 117 21.2 18.4 115
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Basin Index (%) 107 109
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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.
