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 TUESDAY: APRIL 8 , 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 17.7 15.8 112 20.8 20.0 104
Blind Bull Sum 8880 26.8 24.0 112 18.8 17.6 107
Cottonwood Creek 7710 25.1 20.8 121 28.5 25.2 113
East Rim Divide 8010 10.2 10.2 100 11.6 11.1 105
Grand Targhee 9260 40.0 43.4 92 30.3 31.4 96
Granite Creek 6770 18.1 14.6 124 18.2 18.6 98
Grassy Lake 7330 32.1 32.8 98 35.0 34.8 101
Gros Ventre Summit 8760 12.7 12.8 99 13.3 12.0 111
Gunsight Pass 9830 13.8 13.0 106 13.7 13.8 99
Lewis Lake Divide 7880 32.6 30.6 107 35.1 32.4 108
Loomis Park 8240 15.1 15.2 99 16.8 16.6 101
Phillips Bench 8160 26.6 26.2 102 27.0 26.4 102
Salt River Summit 7630 15.4 12.6 122 14.1 16.1 88
Snake River Station 6900 18.9 16.0 118 22.0 22.4 98
Somsen Ranch 6830 13.5 10.2 132 16.8 16.6 101
Spring Creek Divide 9020 26.9 25.0 108 25.6 23.4 109
Thumb Divide 7970 -M 16.4 * -M 17.6 *
Togwotee Pass 9590 24.2 23.2 104 25.7 24.5 105
Triple Peak 8520 29.0 22.8 127 27.5 24.8 111
Two Ocean Plateau 9240 29.0 29.2 99 25.0 26.6 94
Willow Creek 8060 35.7 29.3 122 -M 32.8 *
Younts Peak 8340 15.4 14.6 105 14.9 14.7 101
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Basin Index (%) 108 103
MADISON HEADWATERS IN WYOMING
Black Bear 8160 33.7 38.0 89 35.0 37.0 95
Canyon 7870 12.2 -M * 13.3 -M *
Madison Plateau 7710 22.7 22.8 100 24.9 25.0 100
West Yellowstone 6680 10.7 9.3 115 12.7 13.8 92
Whiskey Creek 6790 16.0 14.8 108 20.6 19.9 104
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Basin Index (%) 98 97
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 21.7 21.5 101 20.2 19.8 102
Canyon 7870 12.2 -M * 13.3 -M *
Evening Star 9040 25.5 25.2 101 27.5 28.2 98
Fisher Creek 9110 28.9 32.8 88 30.6 32.9 93
Monument Peak 8740 18.3 20.6 89 21.2 21.6 98
Northeast Entrance 7420 9.2 8.4 110 12.6 13.0 97
Parker Peak 9420 24.8 21.4 116 23.3 20.0 116
Sylvan Lake 8440 18.3 19.3 95 21.7 23.3 93
Thumb Divide 7970 -M 16.4 * -M 17.6 *
Two Ocean Plateau 9240 29.0 29.2 99 25.0 26.6 94
White Mill 8730 23.0 24.2 95 21.4 23.0 93
Wolverine 7650 11.8 9.5 124 14.7 12.6 117
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Basin Index (%) 99 99
WIND RIVER
Burroughs Creek 8760 12.0 -M * 16.6 -M *
Castle Creek 8410 6.3 6.2 102 8.4 8.8 95
Cold Springs 9640 7.2 7.1 101 8.9 9.4 95
Deer Park 9690 17.5 15.0 117 19.8 18.0 110
Hobbs Park 10080 14.6 14.4 101 15.0 13.5 111
Kirwin 9580 12.2 10.4 117 14.1 12.0 118
Little Warm 9370 10.7 10.0 107 13.3 11.8 113
South Pass 9040 14.6 14.6 100 16.9 15.4 110
St. Lawrence Alt 8610 4.9 -M * 9.6 -M *
Togwotee Pass 9590 24.2 23.2 104 25.7 24.5 105
Townsend Creek 8720 10.5 9.4 112 13.4 11.0 122
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Basin Index (%) 107 109
BIGHORN BASIN
Bald Mtn. 9360 20.9 19.3 108 17.3 16.0 108
Bear Trap Meadow 8200 5.1 5.8 88 7.0 8.9 79
Bone Springs Div 9340 16.3 17.5 93 12.1 15.9 76
Grave Springs 8560 8.0 8.2 98 10.2 9.2 111
Kirwin 9580 12.2 10.4 117 14.1 12.0 118
Marquette 8800 10.1 7.5 135 11.7 9.4 124
Middle Powder 7760 10.5 10.9 96 8.8 10.0 88
Owl Creek 8990 5.6 5.3 106 7.4 6.2 119
Powder River Pass 9480 7.5 10.6 71 10.5 12.8 82
Shell Creek 9570 13.3 15.4 86 12.1 13.8 88
Timber Creek 7910 6.7 5.0 134 8.6 7.8 110
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Basin Index (%) 100 98
SHOSHONE RIVER
Blackwater 9840 24.3 23.1 105 23.0 22.2 104
Evening Star 9040 25.5 25.2 101 27.5 28.2 98
Marquette 8800 10.1 7.5 135 11.7 9.4 124
Sylvan Lake 8440 18.3 19.3 95 21.7 23.3 93
Sylvan Road 7140 6.5 10.6 61 13.5 16.1 84
Younts Peak 8340 15.4 14.6 105 14.9 14.7 101
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Basin Index (%) 100 99
POWDER RIVER
Bear Trap Meadow 8200 5.1 5.8 88 7.0 8.9 79
Cloud Peak Reservoir 9830 11.3 14.8 76 12.3 13.6 90
Grave Springs 8560 8.0 8.2 98 10.2 9.2 111
Hansen Sawmill 8360 5.5 6.0 92 7.6 8.4 90
Middle Powder 7760 10.5 10.9 96 8.8 10.0 88
Powder River Pass 9480 7.5 10.6 71 10.5 12.8 82
Soldier Park 8680 3.8 7.5 51 7.1 9.4 76
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Basin Index (%) 81 88
TONGUE RIVER
Big Goose 8010 8.3 8.8 94 10.1 10.2 99
Bone Springs Div 9340 16.3 17.5 93 12.1 15.9 76
Burgess Junction 7900 11.6 11.2 104 12.5 12.2 102
Dome Lake 8890 11.0 11.6 95 11.2 13.0 86
Little Goose 8560 10.2 9.7 105 12.3 12.2 101
Sucker Creek 8840 12.2 12.4 98 14.8 14.0 106
Tie Creek 7050 7.3 4.6 159 12.1 10.8 112
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Basin Index (%) 101 96
BELLE FOURCHE
Blind Park 6900 3.6 6.6 55 9.6 11.0 87
Cole Canyon 5930 5.4 4.4 123 9.8 9.4 104
North Rapid Creek 6150 2.4 6.0 40 8.0 8.8 91
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Basin Index (%) 67 94
CHEYENNE RIVER BASIN
Blind Park 6900 3.6 6.6 55 9.6 11.0 87
North Rapid Creek 6150 2.4 6.0 40 8.0 8.8 91
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Basin Index (%) 48 89
UPPER N. PLATTE
Arapaho Ridge 10960 20.3 22.5 90 20.8 21.6 96
Blackhall Mtn 9830 29.8 30.4 98 31.1 29.4 106
Cinnabar Park 9670 17.9 20.3 88 21.7 23.6 92
Columbine 9170 25.3 22.6 112 27.3 25.6 107
Divide Peak 8700 17.1 20.0 86 20.3 21.6 94
Joe Wright 10140 23.7 20.9 113 28.5 26.0 110
Laprele Creek 8370 8.2 9.4 87 10.0 11.8 85
Med Bow 10500 40.3 -M * 35.0 -M *
Never Summer 10300 21.1 20.6 102 17.3 17.2 101
North French Creek 10150 32.8 29.9 110 30.8 26.8 115
Old Battle 9850 29.8 31.7 94 29.4 34.8 84
Rawah 9100 11.2 10.8 104 14.8 15.9 93
Sage Creek Basin 7830 9.8 12.2 80 12.6 13.3 95
Sand Lake 10080 29.8 28.0 106 28.5 25.0 114
South Brush Creek 8480 10.8 11.4 95 12.3 13.8 89
Tower 10610 43.2 43.8 99 42.9 39.3 109
Webber Springs 9250 18.8 22.6 83 23.0 25.4 91
Whiskey Park 8950 27.5 27.0 102 29.2 27.6 106
Willow Creek Pass 9520 13.8 13.2 105 13.5 13.6 99
Zirkel 9320 24.7 28.4 87 31.0 30.7 101
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Basin Index (%) 98 100
SWEETWATER
Deer Park 9690 17.5 15.0 117 19.8 18.0 110
Larsen Creek 8880 7.3 9.4 78 12.6 13.5 93
South Pass 9040 14.6 14.6 100 16.9 15.4 110
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Basin Index (%) 101 105
LOWER N. PLATTE
Casper Mtn. 7940 9.7 13.6 71 11.4 13.8 83
Laprele Creek 8370 8.2 9.4 87 10.0 11.8 85
Reno Hill 8410 12.2 14.0 87 14.4 15.2 95
Windy Peak 7900 6.7 7.8 86 8.0 10.2 78
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Basin Index (%) 82 86
LARAMIE RIVER
Brooklyn Lake 10250 23.7 22.2 107 24.6 21.8 113
Cinnabar Park 9670 17.9 20.3 88 21.7 23.6 92
Crow Creek 8320 2.4 5.6 43 8.7 10.7 81
Deadman Hill 10240 18.1 16.0 113 18.4 18.0 102
Rawah 9100 11.2 10.8 104 14.8 15.9 93
Roach 9710 13.6 15.3 89 17.4 19.1 91
Windy Peak 7900 6.7 7.8 86 8.0 10.2 78
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Basin Index (%) 96 95
S. PLATTE
Crow Creek 8320 2.4 5.6 43 8.7 10.7 81
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Basin Index (%) 43 81
LITTLE SNAKE RIVER
Battle Mountain 7460 8.4 9.8 86 16.1 15.1 107
Divide Peak 8700 17.1 20.0 86 20.3 21.6 94
Elk River 8710 16.0 17.0 94 19.8 19.2 103
Elkhead Divide 8780 16.6 -M * 19.0 -M *
Little Snake River 8930 24.7 27.1 91 31.4 32.8 96
Old Battle 9850 29.8 31.7 94 29.4 34.8 84
Sage Creek Basin 7830 9.8 12.2 80 12.6 13.3 95
Sandstone RS 8150 12.5 12.9 97 15.2 17.8 85
Whiskey Park 8950 27.5 27.0 102 29.2 27.6 106
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Basin Index (%) 92 95
UPPER GREEN RIVER
Big Sandy Opening 9100 11.6 13.0 89 12.0 13.0 92
Blind Bull Sum 8880 26.8 24.0 112 18.8 17.6 107
East Rim Divide 8010 10.2 10.2 100 11.6 11.1 105
Elkhart Park G.S. 9410 12.7 12.6 101 12.7 12.6 101
Gros Ventre Summit 8760 12.7 12.8 99 13.3 12.0 111
Gunsight Pass 9830 13.8 13.0 106 13.7 13.8 99
Indian Creek 9400 26.6 23.6 113 22.6 19.6 115
Kendall R.S. 7790 13.7 11.0 125 14.4 13.1 110
Larsen Creek 8880 7.3 9.4 78 12.6 13.5 93
Loomis Park 8240 15.1 15.2 99 16.8 16.6 101
New Fork Lake 8380 9.4 10.6 89 -M 10.6 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 14.0 12.9 109 16.3 13.8 118
Spring Creek Divide 9020 26.9 25.0 108 25.6 23.4 109
Triple Peak 8520 29.0 22.8 127 27.5 24.8 111
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Basin Index (%) 106 106
LOWER GREEN RIVER
Blacks Fork Jct 8880 11.0 8.4 131 13.6 12.2 111
Buck Pasture 9620 14.0 -M * 19.2 -M *
EF Blacks Fork GS 9360 9.8 11.2 88 12.9 10.8 119
Hams Fork 7870 10.6 10.8 98 12.9 11.0 117
Henrys Fork 10180 -M -M * 13.4 -M *
Hewinta 9510 9.9 10.7 93 14.8 13.4 110
Hickerson Park 9130 6.6 7.0 94 10.0 10.4 96
Hole-in-Rock 9170 6.5 7.2 90 10.4 10.2 102
Indian Creek 9400 26.6 23.6 113 22.6 19.6 115
Kelley R.S. 8240 17.5 14.6 120 18.1 16.0 113
Spirit Lk 10240 13.0 14.1 92 14.8 16.9 88
Steel Creek Park 10140 16.4 14.7 112 17.8 16.4 109
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Basin Index (%) 105 108
UPPER BEAR RIVER
Bear River RS 8510 7.0 8.2 85 13.2 11.8 112
Bug Lake 7980 18.3 18.2 101 19.6 18.2 108
Burts Miller Ranch 7900 4.2 4.6 91 12.2 7.8 156
Chalk Creek #1 9160 20.1 22.5 89 23.3 22.6 103
Giveout 6940 8.6 7.7 112 12.5 12.0 104
Hayden Fork 9160 14.0 14.8 95 21.5 20.6 104
Kelley R.S. 8240 17.5 14.6 120 18.1 16.0 113
Lily Lake 9130 14.2 12.4 115 15.2 15.2 100
Monte Cristo 8930 25.6 27.4 93 24.9 26.4 94
Salt River Summit 7630 15.4 12.6 122 14.1 16.1 88
Spring Creek Divide 9020 26.9 25.0 108 25.6 23.4 109
Trial Lake 9970 24.8 22.0 113 25.1 22.4 112
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Basin Index (%) 103 106
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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.
