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 SATURDAY: APRIL 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 16.1 14.7 110 20.9 20.3 103
Blind Bull Sum 8880 27.2 24.6 111 18.7 17.8 105
Cottonwood Creek 7710 23.1 21.2 109 28.5 25.6 111
East Rim Divide 8010 8.2 10.2 80 11.7 11.4 103
Grand Targhee 9260 39.0 45.3 86 30.4 32.4 94
Granite Creek 6770 16.2 14.0 116 18.3 18.6 98
Grassy Lake 7330 31.2 32.2 97 35.1 35.5 99
Gros Ventre Summit 8760 11.9 12.8 93 13.3 12.4 107
Gunsight Pass 9830 13.3 13.0 102 13.8 14.2 97
Lewis Lake Divide 7880 31.6 31.9 99 35.6 33.3 107
Loomis Park 8240 13.3 14.9 89 16.9 16.8 101
Phillips Bench 8160 25.6 26.3 97 27.1 26.8 101
Salt River Summit 7630 13.4 12.3 109 14.1 16.3 87
Snake River Station 6900 16.5 15.2 109 22.2 22.8 97
Somsen Ranch 6830 10.8 9.7 111 16.8 16.7 101
Spring Creek Divide 9020 27.9 25.1 111 25.6 23.6 108
Thumb Divide 7970 -M 15.8 * -M 18.2 *
Togwotee Pass 9590 23.6 23.8 99 25.8 24.8 104
Triple Peak 8520 28.5 22.7 126 27.5 25.4 108
Two Ocean Plateau 9240 30.0 30.6 98 25.2 27.3 92
Willow Creek 8060 34.9 29.0 120 35.3 33.6 105
Younts Peak 8340 14.7 14.6 101 15.0 15.1 99
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Basin Index (%) 103 102
MADISON HEADWATERS IN WYOMING
Black Bear 8160 34.6 38.8 89 35.5 37.6 94
Canyon 7870 12.6 -M * 14.0 -M *
Madison Plateau 7710 23.6 23.2 102 25.7 25.2 102
West Yellowstone 6680 9.3 8.6 108 13.4 14.0 96
Whiskey Creek 6790 16.1 15.0 107 21.4 20.4 105
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Basin Index (%) 98 99
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 23.1 22.0 105 20.9 20.4 102
Canyon 7870 12.6 -M * 14.0 -M *
Evening Star 9040 25.9 25.1 103 28.4 28.4 100
Fisher Creek 9110 29.7 34.1 87 31.3 34.0 92
Monument Peak 8740 18.7 21.2 88 21.6 22.1 98
Northeast Entrance 7420 8.0 8.4 95 12.9 13.2 98
Parker Peak 9420 25.8 21.9 118 23.7 20.4 116
Sylvan Lake 8440 17.3 20.1 86 22.2 23.6 94
Thumb Divide 7970 -M 15.8 * -M 18.2 *
Two Ocean Plateau 9240 30.0 30.6 98 25.2 27.3 92
White Mill 8730 23.9 24.8 96 22.0 23.4 94
Wolverine 7650 11.3 8.7 130 15.0 12.8 117
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Basin Index (%) 99 99
WIND RIVER
Burroughs Creek 8760 10.5 -M * 16.7 -M *
Castle Creek 8410 4.6 5.8 79 8.3 8.9 93
Cold Springs 9640 5.6 7.0 80 8.9 9.7 92
Deer Park 9690 16.6 15.2 109 19.9 18.5 108
Hobbs Park 10080 14.1 15.2 93 15.0 14.2 106
Kirwin 9580 10.8 11.0 98 14.2 12.2 116
Little Warm 9370 9.6 10.0 96 13.3 12.0 111
South Pass 9040 13.5 15.4 88 16.8 16.4 102
St. Lawrence Alt 8610 3.3 -M * 9.7 -M *
Togwotee Pass 9590 23.6 23.8 99 25.8 24.8 104
Townsend Creek 8720 9.8 9.8 100 13.4 12.4 108
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Basin Index (%) 96 105
BIGHORN BASIN
Bald Mtn. 9360 21.4 19.5 110 17.2 16.3 106
Bear Trap Meadow 8200 3.6 5.6 64 7.0 9.4 74
Bone Springs Div 9340 16.4 18.0 91 12.2 16.2 75
Grave Springs 8560 7.6 8.6 88 10.3 10.0 103
Kirwin 9580 10.8 11.0 98 14.2 12.2 116
Marquette 8800 9.0 7.7 117 11.7 9.9 118
Middle Powder 7760 9.3 11.3 82 8.8 10.1 87
Owl Creek 8990 3.9 5.5 71 7.3 6.6 111
Powder River Pass 9480 6.8 10.8 63 10.6 13.2 80
Shell Creek 9570 13.3 16.0 83 12.2 14.2 86
Timber Creek 7910 6.0 5.2 115 8.7 8.1 107
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Basin Index (%) 91 95
SHOSHONE RIVER
Blackwater 9840 25.0 24.0 104 23.7 22.6 105
Evening Star 9040 25.9 25.1 103 28.4 28.4 100
Marquette 8800 9.0 7.7 117 11.7 9.9 118
Sylvan Lake 8440 17.3 20.1 86 22.2 23.6 94
Sylvan Road 7140 4.4 10.2 43 14.0 16.5 85
Younts Peak 8340 14.7 14.6 101 15.0 15.1 99
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Basin Index (%) 95 99
POWDER RIVER
Bear Trap Meadow 8200 3.6 5.6 64 7.0 9.4 74
Cloud Peak Reservoir 9830 11.0 15.1 73 12.4 14.1 88
Grave Springs 8560 7.6 8.6 88 10.3 10.0 103
Hansen Sawmill 8360 4.8 6.2 77 7.6 8.8 86
Middle Powder 7760 9.3 11.3 82 8.8 10.1 87
Powder River Pass 9480 6.8 10.8 63 10.6 13.2 80
Soldier Park 8680 2.8 6.0 47 7.2 9.7 74
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Basin Index (%) 72 85
TONGUE RIVER
Big Goose 8010 8.0 9.0 89 9.9 10.6 93
Bone Springs Div 9340 16.4 18.0 91 12.2 16.2 75
Burgess Junction 7900 11.0 11.4 96 12.5 12.6 99
Dome Lake 8890 10.5 11.8 89 11.3 13.6 83
Little Goose 8560 9.3 10.3 90 12.4 12.6 98
Sucker Creek 8840 11.3 12.6 90 14.8 14.7 101
Tie Creek 7050 5.9 4.5 131 12.1 11.3 107
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Basin Index (%) 93 93
BELLE FOURCHE
Blind Park 6900 1.6 5.9 27 9.7 11.8 82
Cole Canyon 5930 3.6 3.8 95 9.6 9.6 100
North Rapid Creek 6150 .3 5.8 5 8.0 9.5 84
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Basin Index (%) 35 88
CHEYENNE RIVER BASIN
Blind Park 6900 1.6 5.9 27 9.7 11.8 82
North Rapid Creek 6150 .3 5.8 5 8.0 9.5 84
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Basin Index (%) 16 83
UPPER N. PLATTE
Arapaho Ridge 10960 20.0 22.7 88 20.7 22.4 92
Blackhall Mtn 9830 29.1 30.4 96 31.1 30.3 103
Cinnabar Park 9670 16.4 20.7 79 21.7 23.9 91
Columbine 9170 22.8 22.0 104 27.4 25.8 106
Divide Peak 8700 16.2 20.1 81 20.2 21.8 93
Joe Wright 10140 23.4 21.4 109 28.5 26.2 109
Laprele Creek 8370 7.0 9.2 76 10.0 12.0 83
Med Bow 10500 38.0 -M * 35.0 -M *
Never Summer 10300 20.8 20.7 100 17.3 17.8 97
North French Creek 10150 32.5 30.9 105 30.8 27.8 111
Old Battle 9850 29.8 32.2 93 29.4 35.2 84
Rawah 9100 9.4 10.0 94 14.8 16.0 92
Sage Creek Basin 7830 6.7 11.3 59 12.6 13.3 95
Sand Lake 10080 29.6 29.2 101 28.5 25.8 110
South Brush Creek 8480 9.0 10.1 89 12.4 14.0 89
Tower 10610 42.8 44.5 96 43.2 40.5 107
Webber Springs 9250 17.3 21.8 79 23.1 25.9 89
Whiskey Park 8950 27.0 26.8 101 29.2 28.0 104
Willow Creek Pass 9520 13.5 13.6 99 13.5 13.9 97
Zirkel 9320 21.8 26.1 84 -M 31.0 *
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Basin Index (%) 93 99
SWEETWATER
Deer Park 9690 16.6 15.2 109 19.9 18.5 108
Larsen Creek 8880 6.0 8.6 70 12.6 13.8 91
South Pass 9040 13.5 15.4 88 16.8 16.4 102
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Basin Index (%) 92 101
LOWER N. PLATTE
Casper Mtn. 7940 7.9 13.8 57 11.4 14.2 80
Laprele Creek 8370 7.0 9.2 76 10.0 12.0 83
Reno Hill 8410 11.6 14.2 82 14.4 15.8 91
Windy Peak 7900 5.7 7.6 75 8.0 10.5 76
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Basin Index (%) 72 83
LARAMIE RIVER
Brooklyn Lake 10250 23.0 22.6 102 24.7 22.4 110
Cinnabar Park 9670 16.4 20.7 79 21.7 23.9 91
Crow Creek 8320 .4 4.9 8 8.7 10.9 80
Deadman Hill 10240 18.1 16.9 107 18.4 18.2 101
Rawah 9100 9.4 10.0 94 14.8 16.0 92
Roach 9710 12.7 15.2 84 17.4 19.5 89
Windy Peak 7900 5.7 7.6 75 8.0 10.5 76
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Basin Index (%) 88 94
S. PLATTE
Crow Creek 8320 .4 4.9 8 8.7 10.9 80
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Basin Index (%) 8 80
LITTLE SNAKE RIVER
Battle Mountain 7460 5.3 8.4 63 16.1 15.4 105
Divide Peak 8700 16.2 20.1 81 20.2 21.8 93
Elk River 8710 13.1 16.6 79 19.8 19.9 99
Elkhead Divide 8780 14.6 -M * 19.0 -M *
Little Snake River 8930 22.5 26.2 86 31.3 32.8 95
Old Battle 9850 29.8 32.2 93 29.4 35.2 84
Sage Creek Basin 7830 6.7 11.3 59 12.6 13.3 95
Sandstone RS 8150 9.4 12.4 76 15.1 18.2 83
Whiskey Park 8950 27.0 26.8 101 29.2 28.0 104
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Basin Index (%) 84 94
UPPER GREEN RIVER
Big Sandy Opening 9100 10.7 13.4 80 12.1 13.5 90
Blind Bull Sum 8880 27.2 24.6 111 18.7 17.8 105
East Rim Divide 8010 8.2 10.2 80 11.7 11.4 103
Elkhart Park G.S. 9410 11.8 12.9 91 12.6 12.9 98
Gros Ventre Summit 8760 11.9 12.8 93 13.3 12.4 107
Gunsight Pass 9830 13.3 13.0 102 13.8 14.2 97
Indian Creek 9400 25.2 23.6 107 22.6 19.8 114
Kendall R.S. 7790 11.3 10.2 111 14.4 13.3 108
Larsen Creek 8880 6.0 8.6 70 12.6 13.8 91
Loomis Park 8240 13.3 14.9 89 16.9 16.8 101
New Fork Lake 8380 8.0 10.2 78 -M 10.8 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 12.5 12.2 102 16.4 14.0 117
Spring Creek Divide 9020 27.9 25.1 111 25.6 23.6 108
Triple Peak 8520 28.5 22.7 126 27.5 25.4 108
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Basin Index (%) 101 104
LOWER GREEN RIVER
Blacks Fork Jct 8880 9.6 7.6 126 13.6 12.3 111
Buck Pasture 9620 12.4 -M * 19.2 -M *
EF Blacks Fork GS 9360 8.3 11.6 72 12.9 11.4 113
Hams Fork 7870 8.1 9.5 85 12.9 11.1 116
Henrys Fork 10180 -M -M * 13.2 -M *
Hewinta 9510 6.8 9.9 69 14.8 13.6 109
Hickerson Park 9130 4.3 7.0 61 9.8 10.7 92
Hole-in-Rock 9170 4.7 7.4 64 10.4 10.4 100
Indian Creek 9400 25.2 23.6 107 22.6 19.8 114
Kelley R.S. 8240 16.1 14.6 110 18.1 16.4 110
Spirit Lk 10240 12.1 13.6 89 14.8 18.1 82
Steel Creek Park 10140 16.1 15.4 105 17.8 16.8 106
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Basin Index (%) 93 105
UPPER BEAR RIVER
Bear River RS 8510 3.6 7.4 49 13.2 12.2 108
Bug Lake 7980 15.8 18.5 85 19.7 18.4 107
Burts Miller Ranch 7900 .9 2.5 36 12.2 8.1 151
Chalk Creek #1 9160 18.8 23.1 81 23.4 23.3 100
Giveout 6940 6.2 5.7 109 12.8 12.5 102
Hayden Fork 9160 10.2 14.2 72 21.5 21.0 102
Kelley R.S. 8240 16.1 14.6 110 18.1 16.4 110
Lily Lake 9130 9.9 12.7 78 15.2 15.4 99
Monte Cristo 8930 24.1 27.3 88 25.0 26.4 95
Salt River Summit 7630 13.4 12.3 109 14.1 16.3 87
Spring Creek Divide 9020 27.9 25.1 111 25.6 23.6 108
Trial Lake 9970 24.7 22.2 111 25.1 22.5 112
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Basin Index (%) 92 105
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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.
