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 MONDAY: APRIL 7 , 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 18.0 15.8 114 20.9 20.0 104
Blind Bull Sum 8880 26.7 23.8 112 18.8 17.6 107
Cottonwood Creek 7710 25.3 20.8 122 28.5 25.2 113
East Rim Divide 8010 10.5 10.2 103 11.6 11.0 105
Grand Targhee 9260 39.7 43.4 91 30.3 31.2 97
Granite Creek 6770 18.3 14.7 124 18.2 18.0 101
Grassy Lake 7330 32.0 32.7 98 35.0 34.7 101
Gros Ventre Summit 8760 12.9 12.9 100 13.2 12.0 110
Gunsight Pass 9830 14.0 13.0 108 13.7 13.8 99
Lewis Lake Divide 7880 32.9 30.6 108 35.1 32.4 108
Loomis Park 8240 15.5 15.1 103 16.7 16.6 101
Phillips Bench 8160 26.6 26.2 102 27.0 26.4 102
Salt River Summit 7630 15.6 12.8 122 14.1 16.0 88
Snake River Station 6900 19.6 16.4 120 21.9 22.4 98
Somsen Ranch 6830 13.7 10.3 133 16.7 16.4 102
Spring Creek Divide 9020 26.8 24.8 108 25.5 23.4 109
Thumb Divide 7970 15.1 16.4 92 14.5 17.5 83
Togwotee Pass 9590 24.6 23.2 106 25.7 24.5 105
Triple Peak 8520 29.0 22.8 127 27.5 24.8 111
Two Ocean Plateau 9240 28.9 29.0 100 24.9 26.4 94
Willow Creek 8060 36.1 29.5 122 35.2 32.8 107
Younts Peak 8340 15.2 14.6 104 14.7 14.7 100
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Basin Index (%) 108 102
MADISON HEADWATERS IN WYOMING
Black Bear 8160 33.2 38.1 87 34.7 37.0 94
Canyon 7870 12.3 -M * 13.4 -M *
Madison Plateau 7710 22.5 22.8 99 24.7 24.6 100
West Yellowstone 6680 11.0 9.4 117 12.6 13.8 91
Whiskey Creek 6790 15.8 15.0 105 20.3 19.8 103
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Basin Index (%) 97 97
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 21.6 21.4 101 20.1 19.8 102
Canyon 7870 12.3 -M * 13.4 -M *
Evening Star 9040 25.7 25.0 103 27.5 27.8 99
Fisher Creek 9110 29.0 32.8 88 30.5 32.4 94
Monument Peak 8740 18.4 20.5 90 21.3 21.4 100
Northeast Entrance 7420 9.7 8.4 115 12.6 13.0 97
Parker Peak 9420 24.7 21.2 117 23.2 19.8 117
Sylvan Lake 8440 18.6 19.3 96 21.6 23.3 93
Thumb Divide 7970 15.1 16.4 92 14.5 17.5 83
Two Ocean Plateau 9240 28.9 29.0 100 24.9 26.4 94
White Mill 8730 23.1 24.0 96 21.4 22.8 94
Wolverine 7650 11.9 9.9 120 14.7 12.4 119
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Basin Index (%) 99 98
WIND RIVER
Burroughs Creek 8760 12.3 -M * 16.5 -M *
Castle Creek 8410 6.4 6.3 102 8.4 8.6 98
Cold Springs 9640 7.5 7.0 107 8.9 9.4 95
Deer Park 9690 17.7 15.1 117 19.8 17.7 112
Hobbs Park 10080 14.7 14.3 103 14.9 13.5 110
Kirwin 9580 12.2 10.4 117 14.0 12.0 117
Little Warm 9370 11.0 10.0 110 13.2 11.8 112
South Pass 9040 14.8 14.6 101 16.9 15.4 110
St. Lawrence Alt 8610 4.9 -M * 9.6 -M *
Togwotee Pass 9590 24.6 23.2 106 25.7 24.5 105
Townsend Creek 8720 10.6 9.4 113 13.3 11.0 121
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Basin Index (%) 108 109
BIGHORN BASIN
Bald Mtn. 9360 21.0 19.4 108 17.2 16.0 108
Bear Trap Meadow 8200 5.4 5.8 93 7.0 8.8 80
Bone Springs Div 9340 16.3 17.2 95 12.0 15.7 76
Grave Springs 8560 8.4 8.2 102 10.2 9.2 111
Kirwin 9580 12.2 10.4 117 14.0 12.0 117
Marquette 8800 10.2 7.4 138 11.7 9.3 126
Middle Powder 7760 10.6 10.8 98 8.7 9.8 89
Owl Creek 8990 6.0 5.2 115 7.3 6.0 122
Powder River Pass 9480 7.8 10.5 74 10.5 12.6 83
Shell Creek 9570 13.2 15.1 87 12.1 13.8 88
Timber Creek 7910 6.7 4.9 137 8.6 7.8 110
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Basin Index (%) 103 99
SHOSHONE RIVER
Blackwater 9840 24.2 23.0 105 22.8 22.0 104
Evening Star 9040 25.7 25.0 103 27.5 27.8 99
Marquette 8800 10.2 7.4 138 11.7 9.3 126
Sylvan Lake 8440 18.6 19.3 96 21.6 23.3 93
Sylvan Road 7140 7.5 10.6 71 13.4 16.0 84
Younts Peak 8340 15.2 14.6 104 14.7 14.7 100
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Basin Index (%) 102 99
POWDER RIVER
Bear Trap Meadow 8200 5.4 5.8 93 7.0 8.8 80
Cloud Peak Reservoir 9830 11.5 14.7 78 12.2 13.5 90
Grave Springs 8560 8.4 8.2 102 10.2 9.2 111
Hansen Sawmill 8360 5.8 6.1 95 7.7 8.2 94
Middle Powder 7760 10.6 10.8 98 8.7 9.8 89
Powder River Pass 9480 7.8 10.5 74 10.5 12.6 83
Soldier Park 8680 3.9 7.6 51 7.1 9.4 76
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Basin Index (%) 84 89
TONGUE RIVER
Big Goose 8010 8.4 8.7 97 10.2 10.1 101
Bone Springs Div 9340 16.3 17.2 95 12.0 15.7 76
Burgess Junction 7900 11.5 11.0 105 12.5 12.1 103
Dome Lake 8890 11.3 11.4 99 11.2 13.0 86
Little Goose 8560 10.4 9.6 108 12.2 12.2 100
Sucker Creek 8840 12.3 12.2 101 14.8 13.9 106
Tie Creek 7050 7.6 4.8 158 12.1 10.7 113
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Basin Index (%) 104 97
BELLE FOURCHE
Blind Park 6900 4.0 6.6 61 9.6 10.8 89
Cole Canyon 5930 5.7 4.7 121 9.8 9.4 104
North Rapid Creek 6150 2.8 6.2 45 8.0 8.8 91
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Basin Index (%) 71 94
CHEYENNE RIVER BASIN
Blind Park 6900 4.0 6.6 61 9.6 10.8 89
North Rapid Creek 6150 2.8 6.2 45 8.0 8.8 91
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Basin Index (%) 53 90
UPPER N. PLATTE
Arapaho Ridge 10960 21.0 22.4 94 20.8 21.4 97
Blackhall Mtn 9830 30.2 30.5 99 31.1 29.4 106
Cinnabar Park 9670 18.1 20.4 89 21.7 23.6 92
Columbine 9170 24.9 22.2 112 27.2 24.7 110
Divide Peak 8700 17.1 19.8 86 20.2 21.4 94
Joe Wright 10140 23.9 20.4 117 28.6 26.0 110
Laprele Creek 8370 8.1 9.4 86 10.0 11.6 86
Med Bow 10500 40.8 -M * 35.0 -M *
Never Summer 10300 21.2 20.4 104 17.2 17.0 101
North French Creek 10150 32.7 29.6 110 30.8 26.8 115
Old Battle 9850 29.8 31.4 95 29.4 34.6 85
Rawah 9100 11.3 10.6 107 14.8 15.5 95
Sage Creek Basin 7830 10.2 12.0 85 12.6 13.3 95
Sand Lake 10080 29.8 27.6 108 28.3 24.8 114
South Brush Creek 8480 10.9 11.6 94 12.4 13.7 91
Tower 10610 43.3 43.3 100 42.8 39.2 109
Webber Springs 9250 19.1 22.4 85 23.0 25.4 91
Whiskey Park 8950 27.5 27.0 102 29.2 27.4 107
Willow Creek Pass 9520 13.8 13.2 105 13.5 13.6 99
Zirkel 9320 25.0 28.1 89 30.9 30.7 101
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Basin Index (%) 99 101
SWEETWATER
Deer Park 9690 17.7 15.1 117 19.8 17.7 112
Larsen Creek 8880 7.0 9.6 73 12.4 13.4 93
South Pass 9040 14.8 14.6 101 16.9 15.4 110
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Basin Index (%) 101 106
LOWER N. PLATTE
Casper Mtn. 7940 10.0 13.8 72 11.3 13.8 82
Laprele Creek 8370 8.1 9.4 86 10.0 11.6 86
Reno Hill 8410 12.2 14.0 87 14.3 15.2 94
Windy Peak 7900 6.7 7.8 86 7.9 10.2 77
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Basin Index (%) 82 86
LARAMIE RIVER
Brooklyn Lake 10250 23.7 22.0 108 24.6 21.8 113
Cinnabar Park 9670 18.1 20.4 89 21.7 23.6 92
Crow Creek 8320 2.6 5.8 45 8.7 10.6 82
Deadman Hill 10240 18.0 16.2 111 18.4 17.8 103
Rawah 9100 11.3 10.6 107 14.8 15.5 95
Roach 9710 13.8 15.3 90 17.4 19.0 92
Windy Peak 7900 6.7 7.8 86 7.9 10.2 77
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Basin Index (%) 96 96
S. PLATTE
Crow Creek 8320 2.6 5.8 45 8.7 10.6 82
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Basin Index (%) 45 82
LITTLE SNAKE RIVER
Battle Mountain 7460 8.8 10.2 86 16.1 15.0 107
Divide Peak 8700 17.1 19.8 86 20.2 21.4 94
Elk River 8710 16.2 17.2 94 19.8 19.2 103
Elkhead Divide 8780 16.6 -M * 19.0 -M *
Little Snake River 8930 24.9 27.5 91 31.4 32.7 96
Old Battle 9850 29.8 31.4 95 29.4 34.6 85
Sage Creek Basin 7830 10.2 12.0 85 12.6 13.3 95
Sandstone RS 8150 13.3 12.8 104 15.1 17.8 85
Whiskey Park 8950 27.5 27.0 102 29.2 27.4 107
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Basin Index (%) 94 96
UPPER GREEN RIVER
Big Sandy Opening 9100 11.6 12.9 90 12.0 12.8 94
Blind Bull Sum 8880 26.7 23.8 112 18.8 17.6 107
East Rim Divide 8010 10.5 10.2 103 11.6 11.0 105
Elkhart Park G.S. 9410 13.0 12.5 104 12.6 12.6 100
Gros Ventre Summit 8760 12.9 12.9 100 13.2 12.0 110
Gunsight Pass 9830 14.0 13.0 108 13.7 13.8 99
Indian Creek 9400 26.8 23.5 114 22.6 19.6 115
Kendall R.S. 7790 14.1 11.2 126 14.3 13.0 110
Larsen Creek 8880 7.0 9.6 73 12.4 13.4 93
Loomis Park 8240 15.5 15.1 103 16.7 16.6 101
New Fork Lake 8380 9.7 10.5 92 -M 10.6 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 14.0 13.0 108 16.2 13.8 117
Spring Creek Divide 9020 26.8 24.8 108 25.5 23.4 109
Triple Peak 8520 29.0 22.8 127 27.5 24.8 111
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Basin Index (%) 107 106
LOWER GREEN RIVER
Blacks Fork Jct 8880 11.3 8.4 135 13.6 12.2 111
Buck Pasture 9620 14.2 -M * 19.2 -M *
EF Blacks Fork GS 9360 9.8 11.3 87 12.9 10.8 119
Hams Fork 7870 11.4 10.8 106 12.9 11.0 117
Henrys Fork 10180 -M -M * 13.6 -M *
Hewinta 9510 10.0 10.8 93 14.7 13.4 110
Hickerson Park 9130 6.8 6.8 100 10.0 10.4 96
Hole-in-Rock 9170 6.6 7.2 92 10.3 10.1 102
Indian Creek 9400 26.8 23.5 114 22.6 19.6 115
Kelley R.S. 8240 17.5 14.6 120 18.1 16.0 113
Spirit Lk 10240 13.2 14.0 94 14.8 16.9 88
Steel Creek Park 10140 16.5 14.8 111 17.9 16.4 109
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Basin Index (%) 106 108
UPPER BEAR RIVER
Bear River RS 8510 7.6 8.4 90 13.3 11.8 113
Bug Lake 7980 18.6 18.3 102 19.6 18.1 108
Burts Miller Ranch 7900 4.6 5.2 88 12.2 7.8 156
Chalk Creek #1 9160 20.1 22.4 90 23.3 22.4 104
Giveout 6940 8.9 8.0 111 12.4 11.8 105
Hayden Fork 9160 14.1 14.6 97 21.6 20.5 105
Kelley R.S. 8240 17.5 14.6 120 18.1 16.0 113
Lily Lake 9130 13.5 12.6 107 15.3 15.2 101
Monte Cristo 8930 26.0 27.2 96 24.9 26.3 95
Salt River Summit 7630 15.6 12.8 122 14.1 16.0 88
Spring Creek Divide 9020 26.8 24.8 108 25.5 23.4 109
Trial Lake 9970 24.7 21.8 113 25.1 22.3 113
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Basin Index (%) 104 107
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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.
