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 THURSDAY: APRIL 10 , 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 17.1 15.6 110 20.9 20.2 103
Blind Bull Sum 8880 26.4 24.6 107 18.7 17.7 106
Cottonwood Creek 7710 24.2 21.0 115 28.5 25.4 112
East Rim Divide 8010 9.4 10.2 92 11.6 11.2 104
Grand Targhee 9260 39.9 44.6 89 30.4 32.0 95
Granite Creek 6770 16.9 14.4 117 18.3 18.6 98
Grassy Lake 7330 32.2 32.5 99 35.1 35.3 99
Gros Ventre Summit 8760 12.3 12.8 96 13.3 12.2 109
Gunsight Pass 9830 14.1 13.1 108 13.7 14.1 97
Lewis Lake Divide 7880 32.9 31.2 105 35.6 33.2 107
Loomis Park 8240 14.3 15.0 95 16.8 16.8 100
Phillips Bench 8160 26.8 26.3 102 27.1 26.6 102
Salt River Summit 7630 14.6 12.6 116 14.1 16.3 87
Snake River Station 6900 18.4 15.6 118 22.1 22.5 98
Somsen Ranch 6830 12.4 9.8 127 16.7 16.6 101
Spring Creek Divide 9020 27.0 25.1 108 25.6 23.6 108
Thumb Divide 7970 15.6 16.4 95 15.0 17.8 84
Togwotee Pass 9590 24.4 23.7 103 25.8 24.7 104
Triple Peak 8520 29.1 23.2 125 27.6 25.2 110
Two Ocean Plateau 9240 29.3 30.4 96 25.1 27.0 93
Willow Creek 8060 35.4 29.6 120 35.3 33.3 106
Younts Peak 8340 14.9 14.6 102 14.9 14.9 100
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Basin Index (%) 105 101
MADISON HEADWATERS IN WYOMING
Black Bear 8160 34.5 38.2 90 35.4 37.3 95
Canyon 7870 13.0 -M * 14.1 -M *
Madison Plateau 7710 23.4 23.0 102 25.7 25.0 103
West Yellowstone 6680 10.5 9.0 117 13.4 14.0 96
Whiskey Creek 6790 16.5 14.8 111 21.4 20.2 106
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Basin Index (%) 100 99
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 22.3 22.0 101 20.8 20.2 103
Canyon 7870 13.0 -M * 14.1 -M *
Evening Star 9040 26.3 25.2 104 28.3 28.3 100
Fisher Creek 9110 29.6 33.6 88 31.1 33.5 93
Monument Peak 8740 18.6 21.2 88 21.5 21.6 100
Northeast Entrance 7420 9.3 8.4 111 13.0 13.0 100
Parker Peak 9420 25.2 21.4 118 23.6 20.2 117
Sylvan Lake 8440 18.7 19.5 96 22.1 23.6 94
Thumb Divide 7970 15.6 16.4 95 15.0 17.8 84
Two Ocean Plateau 9240 29.3 30.4 96 25.1 27.0 93
White Mill 8730 23.7 24.8 96 22.0 23.0 96
Wolverine 7650 12.0 9.0 133 15.0 12.8 117
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Basin Index (%) 99 99
WIND RIVER
Burroughs Creek 8760 11.9 -M * 16.6 -M *
Castle Creek 8410 5.8 6.0 97 8.4 8.8 95
Cold Springs 9640 6.8 6.8 100 8.9 9.6 93
Deer Park 9690 17.3 15.6 111 19.8 18.5 107
Hobbs Park 10080 14.6 14.4 101 15.0 13.8 109
Kirwin 9580 12.0 10.8 111 14.1 12.2 116
Little Warm 9370 10.6 10.0 106 13.3 11.8 113
South Pass 9040 14.4 15.0 96 16.8 16.2 104
St. Lawrence Alt 8610 4.5 -M * 9.6 -M *
Togwotee Pass 9590 24.4 23.7 103 25.8 24.7 104
Townsend Creek 8720 10.4 9.7 107 13.3 11.3 118
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Basin Index (%) 104 107
BIGHORN BASIN
Bald Mtn. 9360 20.8 19.8 105 17.1 16.2 106
Bear Trap Meadow 8200 4.9 5.6 88 6.9 9.1 76
Bone Springs Div 9340 16.4 17.7 93 12.0 16.0 75
Grave Springs 8560 7.9 8.4 94 10.2 9.8 104
Kirwin 9580 12.0 10.8 111 14.1 12.2 116
Marquette 8800 9.9 7.5 132 11.7 9.5 123
Middle Powder 7760 10.0 11.2 89 8.7 10.0 87
Owl Creek 8990 5.4 5.6 96 7.3 6.4 114
Powder River Pass 9480 7.4 10.7 69 10.6 13.0 82
Shell Creek 9570 13.2 15.8 84 12.1 13.9 87
Timber Creek 7910 6.6 5.2 127 8.6 7.8 110
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Basin Index (%) 97 96
SHOSHONE RIVER
Blackwater 9840 24.9 23.6 106 23.4 22.6 104
Evening Star 9040 26.3 25.2 104 28.3 28.3 100
Marquette 8800 9.9 7.5 132 11.7 9.5 123
Sylvan Lake 8440 18.7 19.5 96 22.1 23.6 94
Sylvan Road 7140 6.7 10.4 64 13.9 16.2 86
Younts Peak 8340 14.9 14.6 102 14.9 14.9 100
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Basin Index (%) 101 99
POWDER RIVER
Bear Trap Meadow 8200 4.9 5.6 88 6.9 9.1 76
Cloud Peak Reservoir 9830 11.5 14.8 78 12.3 13.8 89
Grave Springs 8560 7.9 8.4 94 10.2 9.8 104
Hansen Sawmill 8360 5.3 6.1 87 7.7 8.6 90
Middle Powder 7760 10.0 11.2 89 8.7 10.0 87
Powder River Pass 9480 7.4 10.7 69 10.6 13.0 82
Soldier Park 8680 3.7 7.1 52 7.1 9.4 76
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Basin Index (%) 79 86
TONGUE RIVER
Big Goose 8010 8.2 8.9 92 10.1 10.4 97
Bone Springs Div 9340 16.4 17.7 93 12.0 16.0 75
Burgess Junction 7900 11.5 11.4 101 12.4 12.6 98
Dome Lake 8890 11.1 12.0 92 11.3 13.2 86
Little Goose 8560 9.8 9.8 100 12.2 12.4 98
Sucker Creek 8840 12.2 12.6 97 14.7 14.4 102
Tie Creek 7050 7.0 4.6 152 12.0 11.0 109
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Basin Index (%) 99 94
BELLE FOURCHE
Blind Park 6900 2.9 6.1 48 9.7 11.4 85
Cole Canyon 5930 4.6 4.2 110 9.6 9.5 101
North Rapid Creek 6150 1.6 5.8 28 8.0 9.2 87
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Basin Index (%) 57 91
CHEYENNE RIVER BASIN
Blind Park 6900 2.9 6.1 48 9.7 11.4 85
North Rapid Creek 6150 1.6 5.8 28 8.0 9.2 87
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Basin Index (%) 38 86
UPPER N. PLATTE
Arapaho Ridge 10960 20.6 22.5 92 20.8 22.2 94
Blackhall Mtn 9830 29.6 30.3 98 31.1 29.7 105
Cinnabar Park 9670 17.3 20.3 85 21.7 23.6 92
Columbine 9170 24.1 22.6 107 27.3 25.8 106
Divide Peak 8700 16.6 19.8 84 20.2 21.8 93
Joe Wright 10140 23.4 21.4 109 28.6 26.1 110
Laprele Creek 8370 8.0 9.2 87 10.0 11.8 85
Med Bow 10500 40.9 -M * 35.0 -M *
Never Summer 10300 21.1 20.6 102 17.3 17.8 97
North French Creek 10150 32.3 30.2 107 30.8 27.6 112
Old Battle 9850 29.7 31.7 94 29.4 35.2 84
Rawah 9100 10.6 10.4 102 14.8 16.0 92
Sage Creek Basin 7830 8.7 11.2 78 12.6 13.3 95
Sand Lake 10080 29.7 28.5 104 28.4 25.6 111
South Brush Creek 8480 10.3 10.8 95 12.4 13.8 90
Tower 10610 42.8 44.2 97 42.9 40.0 107
Webber Springs 9250 18.4 22.5 82 23.0 25.6 90
Whiskey Park 8950 26.9 27.0 100 29.2 27.8 105
Willow Creek Pass 9520 13.5 13.4 101 13.5 13.7 99
Zirkel 9320 23.4 27.4 85 31.0 30.8 101
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Basin Index (%) 96 99
SWEETWATER
Deer Park 9690 17.3 15.6 111 19.8 18.5 107
Larsen Creek 8880 6.9 8.9 78 12.5 13.5 93
South Pass 9040 14.4 15.0 96 16.8 16.2 104
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Basin Index (%) 98 102
LOWER N. PLATTE
Casper Mtn. 7940 9.0 13.7 66 11.4 13.8 83
Laprele Creek 8370 8.0 9.2 87 10.0 11.8 85
Reno Hill 8410 12.0 14.2 85 14.3 15.5 92
Windy Peak 7900 6.4 7.6 84 7.9 10.4 76
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Basin Index (%) 79 85
LARAMIE RIVER
Brooklyn Lake 10250 23.6 22.4 105 24.7 22.2 111
Cinnabar Park 9670 17.3 20.3 85 21.7 23.6 92
Crow Creek 8320 1.7 4.8 35 8.7 10.7 81
Deadman Hill 10240 17.8 16.4 109 18.4 18.1 102
Rawah 9100 10.6 10.4 102 14.8 16.0 92
Roach 9710 13.3 15.4 86 17.4 19.2 91
Windy Peak 7900 6.4 7.6 84 7.9 10.4 76
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Basin Index (%) 93 95
S. PLATTE
Crow Creek 8320 1.7 4.8 35 8.7 10.7 81
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Basin Index (%) 35 81
LITTLE SNAKE RIVER
Battle Mountain 7460 7.1 9.1 78 16.1 15.2 106
Divide Peak 8700 16.6 19.8 84 20.2 21.8 93
Elk River 8710 14.7 17.2 85 19.8 19.6 101
Elkhead Divide 8780 15.7 -M * 19.0 -M *
Little Snake River 8930 23.9 26.5 90 31.3 32.8 95
Old Battle 9850 29.7 31.7 94 29.4 35.2 84
Sage Creek Basin 7830 8.7 11.2 78 12.6 13.3 95
Sandstone RS 8150 11.2 12.9 87 15.1 18.2 83
Whiskey Park 8950 26.9 27.0 100 29.2 27.8 105
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Basin Index (%) 89 94
UPPER GREEN RIVER
Big Sandy Opening 9100 11.6 13.4 87 12.0 13.5 89
Blind Bull Sum 8880 26.4 24.6 107 18.7 17.7 106
East Rim Divide 8010 9.4 10.2 92 11.6 11.2 104
Elkhart Park G.S. 9410 12.5 13.0 96 12.6 12.8 98
Gros Ventre Summit 8760 12.3 12.8 96 13.3 12.2 109
Gunsight Pass 9830 14.1 13.1 108 13.7 14.1 97
Indian Creek 9400 26.1 23.6 111 22.6 19.7 115
Kendall R.S. 7790 12.6 10.4 121 14.4 13.2 109
Larsen Creek 8880 6.9 8.9 78 12.5 13.5 93
Loomis Park 8240 14.3 15.0 95 16.8 16.8 100
New Fork Lake 8380 8.9 10.4 86 -M 10.7 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 13.4 12.6 106 16.3 13.9 117
Spring Creek Divide 9020 27.0 25.1 108 25.6 23.6 108
Triple Peak 8520 29.1 23.2 125 27.6 25.2 110
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Basin Index (%) 104 105
LOWER GREEN RIVER
Blacks Fork Jct 8880 10.9 8.2 133 13.6 12.2 111
Buck Pasture 9620 14.2 -M * 19.2 -M *
EF Blacks Fork GS 9360 9.5 11.0 86 12.9 11.0 117
Hams Fork 7870 9.6 10.2 94 12.9 11.1 116
Henrys Fork 10180 -M -M * 13.5 -M *
Hewinta 9510 8.9 10.4 86 14.7 13.4 110
Hickerson Park 9130 5.8 7.4 78 9.9 10.6 93
Hole-in-Rock 9170 5.8 7.1 82 10.3 10.4 99
Indian Creek 9400 26.1 23.6 111 22.6 19.7 115
Kelley R.S. 8240 17.1 14.4 119 18.1 16.3 111
Spirit Lk 10240 13.3 14.1 94 14.8 17.0 87
Steel Creek Park 10140 16.5 15.1 109 17.8 16.8 106
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Basin Index (%) 102 107
UPPER BEAR RIVER
Bear River RS 8510 5.6 7.8 72 13.3 12.0 111
Bug Lake 7980 17.4 18.4 95 19.7 18.4 107
Burts Miller Ranch 7900 2.9 3.8 76 12.2 8.0 152
Chalk Creek #1 9160 19.6 22.6 87 23.3 23.0 101
Giveout 6940 7.4 6.9 107 12.6 12.4 102
Hayden Fork 9160 12.6 14.4 88 21.6 20.8 104
Kelley R.S. 8240 17.1 14.4 119 18.1 16.3 111
Lily Lake 9130 12.8 12.7 101 15.2 15.3 99
Monte Cristo 8930 25.6 27.4 93 25.0 26.4 95
Salt River Summit 7630 14.6 12.6 116 14.1 16.3 87
Spring Creek Divide 9020 27.0 25.1 108 25.6 23.6 108
Trial Lake 9970 24.8 22.3 111 25.1 22.4 112
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Basin Index (%) 99 105
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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.
