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 SUNDAY: APRIL 6 , 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 18.2 16.2 112 20.9 20.0 104
Blind Bull Sum 8880 26.2 23.7 111 18.8 17.6 107
Cottonwood Creek 7710 25.4 21.0 121 28.5 25.0 114
East Rim Divide 8010 10.8 10.4 104 11.5 11.0 105
Grand Targhee 9260 39.6 42.6 93 30.2 30.2 100
Granite Creek 6770 18.4 15.0 123 18.2 18.0 101
Grassy Lake 7330 31.9 32.4 98 35.0 34.6 101
Gros Ventre Summit 8760 12.9 12.8 101 13.2 12.0 110
Gunsight Pass 9830 14.1 12.9 109 13.6 13.6 100
Lewis Lake Divide 7880 33.0 30.5 108 35.1 32.4 108
Loomis Park 8240 15.7 15.1 104 16.7 16.6 101
Phillips Bench 8160 26.5 26.2 101 27.0 26.4 102
Salt River Summit 7630 15.7 13.0 121 14.0 16.0 88
Snake River Station 6900 19.9 16.6 120 21.9 22.1 99
Somsen Ranch 6830 13.8 10.7 129 16.6 16.4 101
Spring Creek Divide 9020 26.7 24.8 108 25.5 23.4 109
Thumb Divide 7970 15.2 16.4 93 14.5 17.2 84
Togwotee Pass 9590 24.5 23.2 106 25.7 24.4 105
Triple Peak 8520 28.8 22.8 126 27.4 24.8 110
Two Ocean Plateau 9240 28.8 28.8 100 24.8 26.2 95
Willow Creek 8060 36.0 29.6 122 35.2 32.7 108
Younts Peak 8340 15.3 14.3 107 14.6 14.6 100
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Basin Index (%) 108 103
MADISON HEADWATERS IN WYOMING
Black Bear 8160 34.3 38.2 90 34.6 37.0 94
Canyon 7870 12.3 -M * 13.4 -M *
Madison Plateau 7710 22.4 22.6 99 24.7 24.4 101
West Yellowstone 6680 11.0 9.6 115 12.6 13.8 91
Whiskey Creek 6790 15.6 15.3 102 20.4 19.6 104
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Basin Index (%) 97 97
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 21.6 21.3 101 20.1 19.7 102
Canyon 7870 12.3 -M * 13.4 -M *
Evening Star 9040 25.7 24.9 103 27.4 27.7 99
Fisher Creek 9110 29.1 32.4 90 30.4 32.3 94
Monument Peak 8740 18.3 20.4 90 21.2 21.2 100
Northeast Entrance 7420 9.8 8.6 114 12.6 12.8 98
Parker Peak 9420 24.6 20.8 118 23.1 19.6 118
Sylvan Lake 8440 18.6 19.3 96 21.5 23.2 93
Thumb Divide 7970 15.2 16.4 93 14.5 17.2 84
Two Ocean Plateau 9240 28.8 28.8 100 24.8 26.2 95
White Mill 8730 23.1 23.5 98 21.4 22.4 96
Wolverine 7650 12.2 10.2 120 14.7 12.4 119
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Basin Index (%) 100 99
WIND RIVER
Burroughs Creek 8760 12.5 -M * 16.4 -M *
Castle Creek 8410 6.5 6.4 102 8.3 8.6 97
Cold Springs 9640 7.7 7.0 110 8.9 9.2 97
Deer Park 9690 17.7 15.1 117 19.7 17.7 111
Hobbs Park 10080 14.6 14.2 103 14.8 13.4 110
Kirwin 9580 12.2 10.4 117 14.0 11.9 118
Little Warm 9370 10.9 10.0 109 13.2 11.7 113
South Pass 9040 14.9 14.5 103 16.8 15.4 109
St. Lawrence Alt 8610 5.2 -M * 9.6 -M *
Togwotee Pass 9590 24.5 23.2 106 25.7 24.4 105
Townsend Creek 8720 10.6 9.2 115 13.2 11.0 120
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Basin Index (%) 109 109
BIGHORN BASIN
Bald Mtn. 9360 20.8 19.4 107 17.2 15.8 109
Bear Trap Meadow 8200 5.6 5.9 95 6.8 8.4 81
Bone Springs Div 9340 16.1 17.2 94 12.0 15.6 77
Grave Springs 8560 8.5 8.1 105 10.1 9.0 112
Kirwin 9580 12.2 10.4 117 14.0 11.9 118
Marquette 8800 10.2 7.4 138 11.6 9.2 126
Middle Powder 7760 10.4 10.7 97 8.7 9.8 89
Owl Creek 8990 6.0 5.4 111 7.3 6.0 122
Powder River Pass 9480 7.8 10.4 75 10.5 12.4 85
Shell Creek 9570 13.2 15.0 88 12.0 13.6 88
Timber Creek 7910 6.8 4.8 142 8.6 7.8 110
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Basin Index (%) 103 99
SHOSHONE RIVER
Blackwater 9840 24.0 22.9 105 22.7 21.7 105
Evening Star 9040 25.7 24.9 103 27.4 27.7 99
Marquette 8800 10.2 7.4 138 11.6 9.2 126
Sylvan Lake 8440 18.6 19.3 96 21.5 23.2 93
Sylvan Road 7140 8.2 10.6 77 13.4 16.0 84
Younts Peak 8340 15.3 14.3 107 14.6 14.6 100
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Basin Index (%) 103 99
POWDER RIVER
Bear Trap Meadow 8200 5.6 5.9 95 6.8 8.4 81
Cloud Peak Reservoir 9830 11.5 14.6 79 12.2 13.3 92
Grave Springs 8560 8.5 8.1 105 10.1 9.0 112
Hansen Sawmill 8360 5.7 6.0 95 7.7 8.2 94
Middle Powder 7760 10.4 10.7 97 8.7 9.8 89
Powder River Pass 9480 7.8 10.4 75 10.5 12.4 85
Soldier Park 8680 3.9 7.6 51 7.0 9.3 75
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Basin Index (%) 84 89
TONGUE RIVER
Big Goose 8010 8.4 8.6 98 10.2 9.8 104
Bone Springs Div 9340 16.1 17.2 94 12.0 15.6 77
Burgess Junction 7900 11.5 10.8 106 12.4 11.9 104
Dome Lake 8890 11.2 11.6 97 11.1 12.8 87
Little Goose 8560 10.4 9.6 108 12.2 12.0 102
Sucker Creek 8840 12.3 12.0 102 14.6 13.7 107
Tie Creek 7050 7.7 4.9 157 12.0 10.6 113
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Basin Index (%) 104 98
BELLE FOURCHE
Blind Park 6900 4.2 6.7 63 9.6 10.8 89
Cole Canyon 5930 5.8 4.7 123 9.8 9.2 107
North Rapid Creek 6150 3.0 6.0 50 8.0 8.8 91
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Basin Index (%) 75 95
CHEYENNE RIVER BASIN
Blind Park 6900 4.2 6.7 63 9.6 10.8 89
North Rapid Creek 6150 3.0 6.0 50 8.0 8.8 91
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Basin Index (%) 57 90
UPPER N. PLATTE
Arapaho Ridge 10960 21.0 22.0 95 20.8 21.4 97
Blackhall Mtn 9830 30.1 30.4 99 31.0 29.4 105
Cinnabar Park 9670 18.1 20.6 88 21.7 23.5 92
Columbine 9170 24.9 22.0 113 27.1 24.0 113
Divide Peak 8700 17.0 19.5 87 20.2 21.4 94
Joe Wright 10140 23.8 20.2 118 28.6 25.9 110
Laprele Creek 8370 8.3 9.0 92 10.0 11.6 86
Med Bow 10500 40.9 -M * 35.0 -M *
Never Summer 10300 21.2 20.4 104 17.2 16.9 102
North French Creek 10150 32.6 28.8 113 30.8 26.8 115
Old Battle 9850 29.8 31.3 95 29.3 34.4 85
Rawah 9100 11.2 10.4 108 14.8 15.4 96
Sage Creek Basin 7830 10.1 11.6 87 12.6 12.8 98
Sand Lake 10080 29.7 27.3 109 28.2 24.8 114
South Brush Creek 8480 10.8 11.4 95 12.4 13.7 91
Tower 10610 43.4 43.2 100 42.7 39.2 109
Webber Springs 9250 19.3 22.3 87 22.9 25.3 91
Whiskey Park 8950 27.7 27.0 103 29.1 27.4 106
Willow Creek Pass 9520 13.8 13.0 106 13.5 13.6 99
Zirkel 9320 25.2 28.0 90 30.8 30.6 101
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Basin Index (%) 100 101
SWEETWATER
Deer Park 9690 17.7 15.1 117 19.7 17.7 111
Larsen Creek 8880 6.7 9.8 68 12.4 13.4 93
South Pass 9040 14.9 14.5 103 16.8 15.4 109
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Basin Index (%) 100 105
LOWER N. PLATTE
Casper Mtn. 7940 9.9 13.6 73 11.2 13.7 82
Laprele Creek 8370 8.3 9.0 92 10.0 11.6 86
Reno Hill 8410 12.2 14.0 87 14.3 14.6 98
Windy Peak 7900 6.7 8.0 84 7.8 10.2 76
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Basin Index (%) 83 86
LARAMIE RIVER
Brooklyn Lake 10250 23.6 21.8 108 24.6 21.7 113
Cinnabar Park 9670 18.1 20.6 88 21.7 23.5 92
Crow Creek 8320 2.6 6.0 43 8.7 10.5 83
Deadman Hill 10240 18.0 16.0 112 18.4 17.8 103
Rawah 9100 11.2 10.4 108 14.8 15.4 96
Roach 9710 13.8 15.4 90 17.3 19.0 91
Windy Peak 7900 6.7 8.0 84 7.8 10.2 76
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Basin Index (%) 96 96
S. PLATTE
Crow Creek 8320 2.6 6.0 43 8.7 10.5 83
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Basin Index (%) 43 83
LITTLE SNAKE RIVER
Battle Mountain 7460 8.7 10.4 84 16.0 14.6 110
Divide Peak 8700 17.0 19.5 87 20.2 21.4 94
Elk River 8710 16.1 17.0 95 19.7 19.0 104
Elkhead Divide 8780 16.4 -M * 18.9 -M *
Little Snake River 8930 25.1 27.0 93 31.3 31.8 98
Old Battle 9850 29.8 31.3 95 29.3 34.4 85
Sage Creek Basin 7830 10.1 11.6 87 12.6 12.8 98
Sandstone RS 8150 13.3 13.0 102 15.0 17.3 87
Whiskey Park 8950 27.7 27.0 103 29.1 27.4 106
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Basin Index (%) 94 97
UPPER GREEN RIVER
Big Sandy Opening 9100 11.6 12.9 90 11.9 12.7 94
Blind Bull Sum 8880 26.2 23.7 111 18.8 17.6 107
East Rim Divide 8010 10.8 10.4 104 11.5 11.0 105
Elkhart Park G.S. 9410 13.0 12.4 105 12.6 12.6 100
Gros Ventre Summit 8760 12.9 12.8 101 13.2 12.0 110
Gunsight Pass 9830 14.1 12.9 109 13.6 13.6 100
Indian Creek 9400 26.6 23.4 114 22.5 19.6 115
Kendall R.S. 7790 14.4 11.2 129 14.3 13.0 110
Larsen Creek 8880 6.7 9.8 68 12.4 13.4 93
Loomis Park 8240 15.7 15.1 104 16.7 16.6 101
New Fork Lake 8380 9.9 10.5 94 -M 10.6 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 14.3 12.8 112 16.1 13.8 117
Spring Creek Divide 9020 26.7 24.8 108 25.5 23.4 109
Triple Peak 8520 28.8 22.8 126 27.4 24.8 110
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Basin Index (%) 108 106
LOWER GREEN RIVER
Blacks Fork Jct 8880 11.2 8.6 130 13.5 12.2 111
Buck Pasture 9620 14.2 -M * 19.2 -M *
EF Blacks Fork GS 9360 9.9 11.2 88 12.8 10.8 119
Hams Fork 7870 11.6 11.0 105 12.9 11.0 117
Henrys Fork 10180 -M -M * 13.7 -M *
Hewinta 9510 9.6 11.0 87 14.7 13.4 110
Hickerson Park 9130 6.7 6.9 97 10.0 10.4 96
Hole-in-Rock 9170 6.8 7.0 97 10.2 10.0 102
Indian Creek 9400 26.6 23.4 114 22.5 19.6 115
Kelley R.S. 8240 17.4 14.6 119 18.1 15.9 114
Spirit Lk 10240 13.3 14.1 94 14.8 16.9 88
Steel Creek Park 10140 16.5 14.6 113 17.8 16.3 109
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Basin Index (%) 106 108
UPPER BEAR RIVER
Bear River RS 8510 7.6 8.8 86 13.3 11.8 113
Bug Lake 7980 18.7 18.3 102 19.6 18.0 109
Burts Miller Ranch 7900 4.8 5.3 91 12.2 7.8 156
Chalk Creek #1 9160 20.1 22.6 89 23.2 22.4 104
Giveout 6940 9.1 8.2 111 12.4 11.8 105
Hayden Fork 9160 14.0 14.5 97 21.6 20.4 106
Kelley R.S. 8240 17.4 14.6 119 18.1 15.9 114
Lily Lake 9130 13.0 12.6 103 15.3 15.1 101
Monte Cristo 8930 25.9 27.2 95 24.9 26.1 95
Salt River Summit 7630 15.7 13.0 121 14.0 16.0 88
Spring Creek Divide 9020 26.7 24.8 108 25.5 23.4 109
Trial Lake 9970 24.8 21.7 114 25.0 22.3 112
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Basin Index (%) 103 107
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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.