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 SUNDAY: MARCH 9 , 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 15.4 105 16.8 17.4 97
Blind Bull Sum 8880 22.7 20.6 110 16.7 15.8 106
Cottonwood Creek 7710 22.6 18.9 120 24.6 21.2 116
East Rim Divide 8010 9.8 9.6 102 9.8 9.8 100
Grand Targhee 9260 34.7 34.2 101 25.4 26.5 96
Granite Creek 6770 16.1 15.2 106 15.6 16.3 96
Grassy Lake 7330 26.4 27.4 96 29.2 29.8 98
Gros Ventre Summit 8760 10.4 10.6 98 10.2 10.2 100
Gunsight Pass 9830 12.3 11.0 112 11.4 11.7 97
Lewis Lake Divide 7880 25.6 25.6 100 28.3 28.0 101
Loomis Park 8240 14.4 13.4 107 14.3 14.4 99
Phillips Bench 8160 21.5 22.1 97 21.7 23.0 94
Salt River Summit 7630 14.2 11.4 125 12.0 13.1 92
Snake River Station 6900 17.5 15.2 115 18.4 19.0 97
Somsen Ranch 6830 13.0 11.3 115 13.9 14.1 99
Spring Creek Divide 9020 22.8 20.6 111 22.1 20.0 110
Thumb Divide 7970 11.5 13.5 85 11.0 14.8 74
Togwotee Pass 9590 19.6 20.3 97 21.0 21.4 98
Triple Peak 8520 -M 20.8 * -M 21.9 *
Two Ocean Plateau 9240 -M 24.1 * -M 22.3 *
Willow Creek 8060 30.3 25.4 119 30.2 28.0 108
Younts Peak 8340 11.8 13.0 91 11.3 12.4 91
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Basin Index (%) 105 99
MADISON HEADWATERS IN WYOMING
Black Bear 8160 26.9 32.2 84 26.8 31.9 84
Canyon 7870 10.2 -M * 10.8 -M *
Madison Plateau 7710 16.4 19.2 85 18.6 21.2 88
West Yellowstone 6680 8.9 9.6 93 10.0 12.4 81
Whiskey Creek 6790 12.3 13.8 89 15.9 16.9 94
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Basin Index (%) 86 87
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 16.6 18.8 88 15.5 17.4 89
Canyon 7870 10.2 -M * 10.8 -M *
Evening Star 9040 20.2 22.6 89 22.2 24.6 90
Fisher Creek 9110 23.0 27.7 83 24.6 27.2 90
Monument Peak 8740 14.8 17.4 85 17.2 18.0 96
Northeast Entrance 7420 9.3 9.4 99 10.1 11.4 89
Parker Peak 9420 18.5 18.4 101 18.3 17.2 106
Sylvan Lake 8440 15.5 16.8 92 17.5 19.2 91
Thumb Divide 7970 11.5 13.5 85 11.0 14.8 74
Two Ocean Plateau 9240 -M 24.1 * -M 22.3 *
White Mill 8730 18.4 20.6 89 17.2 19.6 88
Wolverine 7650 10.8 10.5 103 12.3 10.7 115
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Basin Index (%) 90 92
WIND RIVER
Burroughs Creek 8760 9.9 -M * 13.0 -M *
Castle Creek 8410 5.5 6.9 80 6.2 7.4 84
Cold Springs 9640 6.7 6.3 106 7.0 7.4 95
Deer Park 9690 15.3 11.0 139 16.5 14.1 117
Hobbs Park 10080 12.0 11.2 107 11.9 10.0 119
Kirwin 9580 8.3 9.2 90 10.0 9.8 102
Little Warm 9370 9.3 8.4 111 11.1 10.0 111
South Pass 9040 13.0 12.2 107 14.3 12.6 113
St. Lawrence Alt 8610 4.7 -M * 7.3 -M *
Togwotee Pass 9590 19.6 20.3 97 21.0 21.4 98
Townsend Creek 8720 8.4 7.5 112 10.5 8.5 124
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Basin Index (%) 105 107
BIGHORN BASIN
Bald Mtn. 9360 17.4 15.9 109 14.3 13.4 107
Bear Trap Meadow 8200 5.2 5.4 96 5.2 6.6 79
Bone Springs Div 9340 12.5 13.6 92 9.4 12.7 74
Grave Springs 8560 6.9 7.0 99 8.1 7.6 107
Kirwin 9580 8.3 9.2 90 10.0 9.8 102
Marquette 8800 7.4 5.6 132 8.4 7.2 117
Middle Powder 7760 7.9 8.5 93 6.4 8.3 77
Owl Creek 8990 4.5 4.6 98 5.2 4.9 106
Powder River Pass 9480 6.3 9.2 68 8.0 10.2 78
Shell Creek 9570 10.0 12.4 81 9.2 11.2 82
Timber Creek 7910 4.6 4.2 110 5.3 6.0 88
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Basin Index (%) 95 91
SHOSHONE RIVER
Blackwater 9840 18.9 19.2 98 18.2 18.3 99
Evening Star 9040 20.2 22.6 89 22.2 24.6 90
Marquette 8800 7.4 5.6 132 8.4 7.2 117
Sylvan Lake 8440 15.5 16.8 92 17.5 19.2 91
Sylvan Road 7140 9.8 10.4 94 11.0 14.4 76
Younts Peak 8340 11.8 13.0 91 11.3 12.4 91
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Basin Index (%) 95 92
POWDER RIVER
Bear Trap Meadow 8200 5.2 5.4 96 5.2 6.6 79
Cloud Peak Reservoir 9830 8.9 12.2 73 9.2 10.8 85
Grave Springs 8560 6.9 7.0 99 8.1 7.6 107
Hansen Sawmill 8360 3.9 5.8 67 5.1 6.6 77
Middle Powder 7760 7.9 8.5 93 6.4 8.3 77
Powder River Pass 9480 6.3 9.2 68 8.0 10.2 78
Soldier Park 8680 3.0 5.7 53 5.2 7.5 69
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Basin Index (%) 78 82
TONGUE RIVER
Big Goose 8010 5.4 6.6 82 6.8 8.2 83
Bone Springs Div 9340 12.5 13.6 92 9.4 12.7 74
Burgess Junction 7900 8.7 9.0 97 9.6 9.6 100
Dome Lake 8890 7.4 9.4 79 6.7 9.8 68
Little Goose 8560 6.8 7.9 86 8.1 9.6 84
Sucker Creek 8840 9.4 10.4 90 11.4 11.5 99
Tie Creek 7050 6.2 4.8 129 8.9 8.8 101
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Basin Index (%) 91 87
BELLE FOURCHE
Blind Park 6900 5.5 6.8 81 7.7 9.0 86
Cole Canyon 5930 5.8 4.8 121 7.2 7.4 97
North Rapid Creek 6150 4.2 6.1 69 6.2 7.4 84
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Basin Index (%) 88 89
CHEYENNE RIVER BASIN
Blind Park 6900 5.5 6.8 81 7.7 9.0 86
North Rapid Creek 6150 4.2 6.1 69 6.2 7.4 84
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Basin Index (%) 75 85
UPPER N. PLATTE
Arapaho Ridge 10960 18.3 17.9 102 17.8 18.0 99
Blackhall Mtn 9830 25.0 23.5 106 26.1 23.2 112
Cinnabar Park 9670 16.2 17.8 91 18.8 20.5 92
Columbine 9170 22.9 20.4 112 23.2 20.2 115
Divide Peak 8700 14.8 16.5 90 17.0 18.0 94
Joe Wright 10140 19.4 18.0 108 23.9 21.7 110
Laprele Creek 8370 7.5 7.8 96 8.3 9.4 88
Med Bow 10500 33.9 -M * 28.6 -M *
Never Summer 10300 16.6 16.7 99 13.6 14.3 95
North French Creek 10150 26.3 22.8 115 25.2 22.0 115
Old Battle 9850 24.2 25.4 95 24.4 28.4 86
Rawah 9100 9.4 9.6 98 12.1 12.9 94
Sage Creek Basin 7830 10.3 11.9 87 10.7 10.9 98
Sand Lake 10080 24.0 22.0 109 23.1 19.7 117
South Brush Creek 8480 9.6 10.3 93 9.6 11.2 86
Tower 10610 37.0 37.5 99 35.6 33.4 107
Webber Springs 9250 16.8 18.2 92 19.0 21.0 90
Whiskey Park 8950 23.1 23.0 100 24.4 23.4 104
Willow Creek Pass 9520 11.4 10.8 106 11.3 11.1 102
Zirkel 9320 22.3 25.2 88 26.7 26.4 101
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Basin Index (%) 100 101
SWEETWATER
Deer Park 9690 15.3 11.0 139 16.5 14.1 117
Larsen Creek 8880 6.9 10.0 69 10.6 11.1 95
South Pass 9040 13.0 12.2 107 14.3 12.6 113
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Basin Index (%) 106 110
LOWER N. PLATTE
Casper Mtn. 7940 7.9 10.7 74 8.9 10.8 82
Laprele Creek 8370 7.5 7.8 96 8.3 9.4 88
Reno Hill 8410 9.4 11.2 84 11.2 11.6 97
Windy Peak 7900 5.9 6.6 89 6.2 7.8 79
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Basin Index (%) 85 87
LARAMIE RIVER
Brooklyn Lake 10250 20.7 17.3 120 20.9 17.9 117
Cinnabar Park 9670 16.2 17.8 91 18.8 20.5 92
Crow Creek 8320 3.1 6.4 48 6.6 8.2 80
Deadman Hill 10240 15.1 13.9 109 15.5 14.0 111
Rawah 9100 9.4 9.6 98 12.1 12.9 94
Roach 9710 12.2 12.8 95 14.8 15.4 96
Windy Peak 7900 5.9 6.6 89 6.2 7.8 79
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Basin Index (%) 98 98
S. PLATTE
Crow Creek 8320 3.1 6.4 48 6.6 8.2 80
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Basin Index (%) 48 80
LITTLE SNAKE RIVER
Battle Mountain 7460 9.4 10.6 89 12.9 12.7 102
Divide Peak 8700 14.8 16.5 90 17.0 18.0 94
Elk River 8710 14.6 16.6 88 16.9 16.0 106
Elkhead Divide 8780 14.6 -M * 16.2 -M *
Little Snake River 8930 21.8 22.9 95 26.8 27.4 98
Old Battle 9850 24.2 25.4 95 24.4 28.4 86
Sage Creek Basin 7830 10.3 11.9 87 10.7 10.9 98
Sandstone RS 8150 12.4 11.4 109 12.5 15.5 81
Whiskey Park 8950 23.1 23.0 100 24.4 23.4 104
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Basin Index (%) 94 96
UPPER GREEN RIVER
Big Sandy Opening 9100 9.2 11.0 84 9.4 10.6 89
Blind Bull Sum 8880 22.7 20.6 110 16.7 15.8 106
East Rim Divide 8010 9.8 9.6 102 9.8 9.8 100
Elkhart Park G.S. 9410 10.6 10.4 102 10.5 10.8 97
Gros Ventre Summit 8760 10.4 10.6 98 10.2 10.2 100
Gunsight Pass 9830 12.3 11.0 112 11.4 11.7 97
Indian Creek 9400 22.6 19.6 115 19.6 17.0 115
Kendall R.S. 7790 12.7 10.8 118 12.4 11.6 107
Larsen Creek 8880 6.9 10.0 69 10.6 11.1 95
Loomis Park 8240 14.4 13.4 107 14.3 14.4 99
New Fork Lake 8380 9.6 9.2 104 -M 9.2 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 13.1 11.4 115 14.2 12.0 118
Spring Creek Divide 9020 22.8 20.6 111 22.1 20.0 110
Triple Peak 8520 -M 20.8 * -M 21.9 *
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Basin Index (%) 105 104
LOWER GREEN RIVER
Blacks Fork Jct 8880 9.9 7.3 136 11.6 10.0 116
Buck Pasture 9620 12.3 -M * 15.9 -M *
EF Blacks Fork GS 9360 9.0 9.9 91 10.7 9.3 115
Hams Fork 7870 11.5 9.8 117 11.4 9.2 124
Henrys Fork 10180 -M -M * 11.3 -M *
Hewinta 9510 9.0 8.6 105 12.6 11.0 115
Hickerson Park 9130 6.1 6.6 92 8.1 8.6 94
Hole-in-Rock 9170 4.9 6.1 80 8.2 8.1 101
Indian Creek 9400 22.6 19.6 115 19.6 17.0 115
Kelley R.S. 8240 15.5 12.6 123 15.8 14.0 113
Spirit Lk 10240 10.2 9.9 103 11.4 13.6 84
Steel Creek Park 10140 13.8 12.4 111 15.1 13.0 116
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Basin Index (%) 109 109
UPPER BEAR RIVER
Bear River RS 8510 9.0 8.0 112 11.3 9.6 118
Bug Lake 7980 16.8 15.9 106 16.4 15.0 109
Burts Miller Ranch 7900 5.6 5.7 98 10.2 6.1 167
Chalk Creek #1 9160 16.8 19.0 88 19.5 18.8 104
Giveout 6940 8.7 8.5 102 10.7 10.2 105
Hayden Fork 9160 12.4 12.8 97 18.3 16.9 108
Kelley R.S. 8240 15.5 12.6 123 15.8 14.0 113
Lily Lake 9130 10.8 10.8 100 13.0 12.9 101
Monte Cristo 8930 22.1 22.7 97 20.8 21.2 98
Salt River Summit 7630 14.2 11.4 125 12.0 13.1 92
Spring Creek Divide 9020 22.8 20.6 111 22.1 20.0 110
Trial Lake 9970 21.6 18.6 116 21.2 18.4 115
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Basin Index (%) 106 109
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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.
