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: APRIL 11 , 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 16.8 15.2 111 20.9 20.2 103
Blind Bull Sum 8880 26.9 24.6 109 18.7 17.8 105
Cottonwood Creek 7710 23.6 21.2 111 28.5 25.5 112
East Rim Divide 8010 8.9 10.2 87 11.6 11.2 104
Grand Targhee 9260 39.4 44.9 88 30.4 32.4 94
Granite Creek 6770 16.7 14.2 118 18.3 18.6 98
Grassy Lake 7330 31.9 32.3 99 35.1 35.4 99
Gros Ventre Summit 8760 12.2 12.8 95 13.3 12.4 107
Gunsight Pass 9830 14.0 13.0 108 13.8 14.1 98
Lewis Lake Divide 7880 32.5 31.8 102 35.6 33.2 107
Loomis Park 8240 13.8 15.0 92 16.8 16.8 100
Phillips Bench 8160 26.6 26.3 101 27.1 26.6 102
Salt River Summit 7630 14.2 12.6 113 14.2 16.3 87
Snake River Station 6900 17.4 15.4 113 22.1 22.6 98
Somsen Ranch 6830 11.7 9.7 121 16.8 16.6 101
Spring Creek Divide 9020 27.1 25.1 108 25.6 23.6 108
Thumb Divide 7970 -M 16.0 * -M 18.0 *
Togwotee Pass 9590 24.2 23.8 102 25.8 24.8 104
Triple Peak 8520 29.1 23.0 127 27.6 25.4 109
Two Ocean Plateau 9240 29.3 30.4 96 25.2 27.0 93
Willow Creek 8060 35.7 29.4 121 35.3 33.5 105
Younts Peak 8340 15.1 14.6 103 14.9 15.0 99
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Basin Index (%) 105 102
MADISON HEADWATERS IN WYOMING
Black Bear 8160 34.7 38.6 90 35.5 37.6 94
Canyon 7870 12.9 -M * 14.0 -M *
Madison Plateau 7710 23.4 23.2 101 25.7 25.2 102
West Yellowstone 6680 9.8 9.0 109 13.4 14.0 96
Whiskey Creek 6790 16.2 14.8 109 21.3 20.2 105
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Basin Index (%) 98 99
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 22.4 22.0 102 20.9 20.2 103
Canyon 7870 12.9 -M * 14.0 -M *
Evening Star 9040 26.3 25.2 104 28.4 28.4 100
Fisher Creek 9110 29.6 34.0 87 31.2 33.8 92
Monument Peak 8740 18.7 21.0 89 21.6 21.8 99
Northeast Entrance 7420 8.7 8.4 104 13.0 13.1 99
Parker Peak 9420 25.2 21.8 116 23.6 20.4 116
Sylvan Lake 8440 18.2 19.8 92 22.2 23.6 94
Thumb Divide 7970 -M 16.0 * -M 18.0 *
Two Ocean Plateau 9240 29.3 30.4 96 25.2 27.0 93
White Mill 8730 23.7 24.8 96 22.0 23.2 95
Wolverine 7650 11.9 8.9 134 15.0 12.8 117
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Basin Index (%) 99 99
WIND RIVER
Burroughs Creek 8760 11.4 -M * 16.6 -M *
Castle Creek 8410 5.4 5.8 93 8.4 8.8 95
Cold Springs 9640 6.3 7.0 90 8.9 9.7 92
Deer Park 9690 17.0 15.5 110 19.8 18.5 107
Hobbs Park 10080 14.4 14.8 97 15.0 13.9 108
Kirwin 9580 11.6 11.0 105 14.2 12.2 116
Little Warm 9370 10.0 10.0 100 13.3 11.9 112
South Pass 9040 13.9 15.2 91 16.8 16.2 104
St. Lawrence Alt 8610 3.9 -M * 9.6 -M *
Togwotee Pass 9590 24.2 23.8 102 25.8 24.8 104
Townsend Creek 8720 10.2 9.9 103 13.4 11.8 114
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Basin Index (%) 100 106
BIGHORN BASIN
Bald Mtn. 9360 20.8 19.8 105 17.2 16.2 106
Bear Trap Meadow 8200 4.4 5.6 79 7.0 9.4 74
Bone Springs Div 9340 16.4 17.6 93 12.2 16.2 75
Grave Springs 8560 7.8 8.4 93 10.3 9.9 104
Kirwin 9580 11.6 11.0 105 14.2 12.2 116
Marquette 8800 9.5 7.6 125 11.8 9.6 123
Middle Powder 7760 9.8 11.2 88 8.8 10.1 87
Owl Creek 8990 4.7 5.5 85 7.4 6.5 114
Powder River Pass 9480 7.2 10.8 67 10.6 13.1 81
Shell Creek 9570 13.3 16.0 83 12.2 14.0 87
Timber Creek 7910 6.4 5.2 123 8.6 8.1 106
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Basin Index (%) 94 96
SHOSHONE RIVER
Blackwater 9840 25.1 23.6 106 23.7 22.6 105
Evening Star 9040 26.3 25.2 104 28.4 28.4 100
Marquette 8800 9.5 7.6 125 11.8 9.6 123
Sylvan Lake 8440 18.2 19.8 92 22.2 23.6 94
Sylvan Road 7140 5.9 10.3 57 14.0 16.5 85
Younts Peak 8340 15.1 14.6 103 14.9 15.0 99
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Basin Index (%) 99 99
POWDER RIVER
Bear Trap Meadow 8200 4.4 5.6 79 7.0 9.4 74
Cloud Peak Reservoir 9830 11.3 14.9 76 12.4 13.8 90
Grave Springs 8560 7.8 8.4 93 10.3 9.9 104
Hansen Sawmill 8360 5.3 6.1 87 7.6 8.8 86
Middle Powder 7760 9.8 11.2 88 8.8 10.1 87
Powder River Pass 9480 7.2 10.8 67 10.6 13.1 81
Soldier Park 8680 3.5 6.6 53 7.2 9.5 76
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Basin Index (%) 78 86
TONGUE RIVER
Big Goose 8010 8.2 8.9 92 10.1 10.5 96
Bone Springs Div 9340 16.4 17.6 93 12.2 16.2 75
Burgess Junction 7900 11.4 11.4 100 12.6 12.6 100
Dome Lake 8890 10.8 11.9 91 11.3 13.4 84
Little Goose 8560 9.6 10.0 96 12.4 12.6 98
Sucker Creek 8840 11.8 12.8 92 14.8 14.6 101
Tie Creek 7050 6.7 4.6 146 12.1 11.2 108
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Basin Index (%) 97 94
BELLE FOURCHE
Blind Park 6900 2.4 6.1 39 9.7 11.7 83
Cole Canyon 5930 4.3 3.8 113 9.9 9.5 104
North Rapid Creek 6150 1.1 5.4 20 8.0 9.2 87
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Basin Index (%) 51 91
CHEYENNE RIVER BASIN
Blind Park 6900 2.4 6.1 39 9.7 11.7 83
North Rapid Creek 6150 1.1 5.4 20 8.0 9.2 87
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Basin Index (%) 30 85
UPPER N. PLATTE
Arapaho Ridge 10960 20.6 22.6 91 20.8 22.2 94
Blackhall Mtn 9830 29.4 30.3 97 31.1 30.3 103
Cinnabar Park 9670 17.1 20.5 83 21.7 23.8 91
Columbine 9170 23.6 22.4 105 27.2 25.8 105
Divide Peak 8700 16.7 19.9 84 20.2 21.8 93
Joe Wright 10140 23.7 21.2 112 28.6 26.2 109
Laprele Creek 8370 7.7 9.4 82 10.0 11.9 84
Med Bow 10500 38.4 -M * 35.0 -M *
Never Summer 10300 21.1 20.8 101 17.3 17.8 97
North French Creek 10150 32.9 30.6 108 30.8 27.6 112
Old Battle 9850 29.7 32.0 93 29.4 35.2 84
Rawah 9100 10.1 10.2 99 14.8 16.0 92
Sage Creek Basin 7830 7.8 11.0 71 12.6 13.3 95
Sand Lake 10080 29.7 28.6 104 28.4 25.8 110
South Brush Creek 8480 9.8 10.4 94 12.4 13.8 90
Tower 10610 42.8 44.4 96 43.0 40.1 107
Webber Springs 9250 18.0 22.4 80 23.1 25.8 90
Whiskey Park 8950 27.1 26.9 101 29.2 28.0 104
Willow Creek Pass 9520 13.6 13.4 101 13.5 13.7 99
Zirkel 9320 22.9 26.9 85 30.9 30.8 100
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Basin Index (%) 95 99
SWEETWATER
Deer Park 9690 17.0 15.5 110 19.8 18.5 107
Larsen Creek 8880 6.5 8.8 74 12.5 13.7 91
South Pass 9040 13.9 15.2 91 16.8 16.2 104
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Basin Index (%) 95 101
LOWER N. PLATTE
Casper Mtn. 7940 8.6 13.7 63 11.5 13.8 83
Laprele Creek 8370 7.7 9.4 82 10.0 11.9 84
Reno Hill 8410 12.0 14.0 86 14.3 15.8 91
Windy Peak 7900 6.2 7.6 82 7.9 10.4 76
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Basin Index (%) 77 84
LARAMIE RIVER
Brooklyn Lake 10250 23.5 22.4 105 24.7 22.4 110
Cinnabar Park 9670 17.1 20.5 83 21.7 23.8 91
Crow Creek 8320 1.2 4.8 25 8.7 10.7 81
Deadman Hill 10240 18.1 16.7 108 18.4 18.1 102
Rawah 9100 10.1 10.2 99 14.8 16.0 92
Roach 9710 13.1 15.4 85 17.4 19.4 90
Windy Peak 7900 6.2 7.6 82 7.9 10.4 76
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Basin Index (%) 91 94
S. PLATTE
Crow Creek 8320 1.2 4.8 25 8.7 10.7 81
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Basin Index (%) 25 81
LITTLE SNAKE RIVER
Battle Mountain 7460 6.4 8.6 74 16.1 15.4 105
Divide Peak 8700 16.7 19.9 84 20.2 21.8 93
Elk River 8710 14.2 17.3 82 19.8 19.8 100
Elkhead Divide 8780 15.4 -M * 19.0 -M *
Little Snake River 8930 23.3 26.3 89 31.3 32.8 95
Old Battle 9850 29.7 32.0 93 29.4 35.2 84
Sage Creek Basin 7830 7.8 11.0 71 12.6 13.3 95
Sandstone RS 8150 10.5 12.8 82 15.1 18.2 83
Whiskey Park 8950 27.1 26.9 101 29.2 28.0 104
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Basin Index (%) 88 94
UPPER GREEN RIVER
Big Sandy Opening 9100 11.5 13.3 86 12.0 13.5 89
Blind Bull Sum 8880 26.9 24.6 109 18.7 17.8 105
East Rim Divide 8010 8.9 10.2 87 11.6 11.2 104
Elkhart Park G.S. 9410 12.4 13.0 95 12.6 12.9 98
Gros Ventre Summit 8760 12.2 12.8 95 13.3 12.4 107
Gunsight Pass 9830 14.0 13.0 108 13.8 14.1 98
Indian Creek 9400 25.9 23.6 110 22.6 19.7 115
Kendall R.S. 7790 12.0 10.2 118 14.4 13.3 108
Larsen Creek 8880 6.5 8.8 74 12.5 13.7 91
Loomis Park 8240 13.8 15.0 92 16.8 16.8 100
New Fork Lake 8380 8.6 10.4 83 -M 10.8 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 12.9 12.4 104 16.3 13.9 117
Spring Creek Divide 9020 27.1 25.1 108 25.6 23.6 108
Triple Peak 8520 29.1 23.0 127 27.6 25.4 109
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Basin Index (%) 103 105
LOWER GREEN RIVER
Blacks Fork Jct 8880 9.8 7.9 124 13.6 12.2 111
Buck Pasture 9620 13.3 -M * 19.2 -M *
EF Blacks Fork GS 9360 9.1 11.8 77 12.9 11.4 113
Hams Fork 7870 8.9 10.1 88 12.9 11.1 116
Henrys Fork 10180 -M -M * 13.6 -M *
Hewinta 9510 7.9 10.0 79 14.7 13.6 108
Hickerson Park 9130 5.1 7.2 71 10.0 10.6 94
Hole-in-Rock 9170 5.4 7.4 73 10.3 10.4 99
Indian Creek 9400 25.9 23.6 110 22.6 19.7 115
Kelley R.S. 8240 16.7 14.6 114 18.1 16.4 110
Spirit Lk 10240 12.8 13.8 93 14.8 17.9 83
Steel Creek Park 10140 16.4 15.3 107 17.8 16.8 106
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Basin Index (%) 97 105
UPPER BEAR RIVER
Bear River RS 8510 4.6 7.8 59 13.3 12.1 110
Bug Lake 7980 16.7 18.4 91 19.6 18.4 107
Burts Miller Ranch 7900 2.1 3.0 70 12.2 8.0 152
Chalk Creek #1 9160 19.4 23.4 83 23.3 23.2 100
Giveout 6940 6.9 6.2 111 12.6 12.4 102
Hayden Fork 9160 11.4 14.4 79 21.5 20.9 103
Kelley R.S. 8240 16.7 14.6 114 18.1 16.4 110
Lily Lake 9130 11.2 12.8 88 15.2 15.4 99
Monte Cristo 8930 25.0 27.2 92 24.9 26.4 94
Salt River Summit 7630 14.2 12.6 113 14.2 16.3 87
Spring Creek Divide 9020 27.1 25.1 108 25.6 23.6 108
Trial Lake 9970 24.8 22.2 112 25.1 22.4 112
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Basin Index (%) 96 105
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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.
