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 WEDNESDAY: APRIL 2 , 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 16.7 109 20.8 19.6 106
Blind Bull Sum 8880 26.4 23.8 111 18.7 17.5 107
Cottonwood Creek 7710 25.2 21.7 116 28.3 24.4 116
East Rim Divide 8010 10.7 10.4 103 11.5 10.9 106
Grand Targhee 9260 39.7 41.1 97 29.9 29.9 100
Granite Creek 6770 18.1 15.6 116 18.1 17.8 102
Grassy Lake 7330 31.9 32.0 100 34.9 33.6 104
Gros Ventre Summit 8760 12.9 12.8 101 13.1 12.0 109
Gunsight Pass 9830 13.7 12.6 109 13.5 13.4 101
Lewis Lake Divide 7880 32.4 30.0 108 34.9 31.9 109
Loomis Park 8240 14.9 15.3 97 16.6 16.4 101
Phillips Bench 8160 26.4 25.9 102 26.8 26.1 103
Salt River Summit 7630 15.6 13.4 116 13.8 15.6 88
Snake River Station 6900 19.5 16.8 116 22.0 21.6 102
Somsen Ranch 6830 13.8 11.2 123 16.6 16.3 102
Spring Creek Divide 9020 26.6 24.5 109 25.4 23.1 110
Thumb Divide 7970 14.9 16.0 93 14.4 17.0 85
Togwotee Pass 9590 24.2 23.0 105 25.6 24.1 106
Triple Peak 8520 28.9 22.6 128 27.4 24.4 112
Two Ocean Plateau 9240 28.7 28.2 102 24.7 25.4 97
Willow Creek 8060 35.5 29.2 122 -M 32.0 *
Younts Peak 8340 15.3 14.2 108 14.6 14.4 101
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Basin Index (%) 108 104
MADISON HEADWATERS IN WYOMING
Black Bear 8160 33.7 37.0 91 34.3 35.7 96
Canyon 7870 12.3 -M * 13.1 -M *
Madison Plateau 7710 22.3 22.2 100 24.7 23.9 103
West Yellowstone 6680 10.6 10.3 103 12.6 13.7 92
Whiskey Creek 6790 15.6 15.4 101 20.4 19.2 106
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Basin Index (%) 97 99
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 21.3 21.2 100 19.8 19.4 102
Canyon 7870 12.3 -M * 13.1 -M *
Evening Star 9040 25.5 24.4 105 27.3 27.0 101
Fisher Creek 9110 28.8 32.2 89 29.9 31.6 95
Monument Peak 8740 17.7 20.0 88 20.6 20.8 99
Northeast Entrance 7420 9.6 9.4 102 12.3 12.6 98
Parker Peak 9420 24.1 20.1 120 23.0 19.3 119
Sylvan Lake 8440 18.4 19.1 96 21.6 22.6 96
Thumb Divide 7970 14.9 16.0 93 14.4 17.0 85
Two Ocean Plateau 9240 28.7 28.2 102 24.7 25.4 97
White Mill 8730 22.7 23.2 98 21.0 22.1 95
Wolverine 7650 11.9 10.9 109 14.6 12.2 120
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Basin Index (%) 100 100
WIND RIVER
Burroughs Creek 8760 12.5 -M * 16.3 -M *
Castle Creek 8410 6.2 6.4 97 8.1 8.2 99
Cold Springs 9640 7.4 7.2 103 8.9 9.0 99
Deer Park 9690 17.3 14.4 120 19.3 17.1 113
Hobbs Park 10080 14.4 13.8 104 14.6 12.9 113
Kirwin 9580 11.7 10.4 112 13.6 11.6 117
Little Warm 9370 10.8 10.0 108 13.0 11.6 112
South Pass 9040 14.7 14.5 101 16.7 15.0 111
St. Lawrence Alt 8610 5.3 -M * 9.5 -M *
Togwotee Pass 9590 24.2 23.0 105 25.6 24.1 106
Townsend Creek 8720 10.5 8.9 118 13.1 10.8 121
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Basin Index (%) 108 110
BIGHORN BASIN
Bald Mtn. 9360 20.6 18.8 110 16.9 15.5 109
Bear Trap Meadow 8200 5.5 6.0 92 6.4 7.8 82
Bone Springs Div 9340 15.4 16.4 94 11.5 14.9 77
Grave Springs 8560 8.2 8.2 100 10.0 8.9 112
Kirwin 9580 11.7 10.4 112 13.6 11.6 117
Marquette 8800 9.9 7.2 138 11.3 8.6 131
Middle Powder 7760 9.8 10.6 92 8.4 9.6 88
Owl Creek 8990 5.8 5.6 104 7.0 5.8 121
Powder River Pass 9480 7.5 10.6 71 10.1 12.0 84
Shell Creek 9570 12.8 14.8 86 11.6 13.4 87
Timber Creek 7910 6.3 4.6 137 7.5 7.6 99
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Basin Index (%) 100 99
SHOSHONE RIVER
Blackwater 9840 23.8 22.2 107 22.3 21.3 105
Evening Star 9040 25.5 24.4 105 27.3 27.0 101
Marquette 8800 9.9 7.2 138 11.3 8.6 131
Sylvan Lake 8440 18.4 19.1 96 21.6 22.6 96
Sylvan Road 7140 8.9 10.7 83 13.2 15.6 85
Younts Peak 8340 15.3 14.2 108 14.6 14.4 101
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Basin Index (%) 104 101
POWDER RIVER
Bear Trap Meadow 8200 5.5 6.0 92 6.4 7.8 82
Cloud Peak Reservoir 9830 10.9 14.2 77 11.4 12.8 89
Grave Springs 8560 8.2 8.2 100 10.0 8.9 112
Hansen Sawmill 8360 4.8 6.5 74 7.0 8.2 85
Middle Powder 7760 9.8 10.6 92 8.4 9.6 88
Powder River Pass 9480 7.5 10.6 71 10.1 12.0 84
Soldier Park 8680 3.3 7.3 45 6.5 8.8 74
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Basin Index (%) 79 88
TONGUE RIVER
Big Goose 8010 7.5 8.4 89 9.3 9.4 99
Bone Springs Div 9340 15.4 16.4 94 11.5 14.9 77
Burgess Junction 7900 11.1 10.4 107 12.5 11.3 111
Dome Lake 8890 10.7 11.4 94 10.2 12.2 84
Little Goose 8560 8.8 9.4 94 10.6 11.4 93
Sucker Creek 8840 11.8 11.7 101 14.0 13.2 106
Tie Creek 7050 7.2 4.8 150 11.6 10.3 113
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Basin Index (%) 100 96
BELLE FOURCHE
Blind Park 6900 4.2 6.9 61 9.4 10.6 89
Cole Canyon 5930 4.6 5.4 85 8.9 9.0 99
North Rapid Creek 6150 2.9 6.5 45 7.8 8.5 92
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Basin Index (%) 62 93
CHEYENNE RIVER BASIN
Blind Park 6900 4.2 6.9 61 9.4 10.6 89
North Rapid Creek 6150 2.9 6.5 45 7.8 8.5 92
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Basin Index (%) 53 90
UPPER N. PLATTE
Arapaho Ridge 10960 20.4 21.2 96 20.1 21.2 95
Blackhall Mtn 9830 29.3 30.3 97 30.6 29.1 105
Cinnabar Park 9670 17.4 20.2 86 21.4 23.1 93
Columbine 9170 24.6 22.2 111 26.8 23.4 115
Divide Peak 8700 16.8 19.6 86 20.0 21.1 95
Joe Wright 10140 22.7 19.8 115 28.0 25.2 111
Laprele Creek 8370 8.2 9.4 87 9.8 11.4 86
Med Bow 10500 41.1 -M * 34.6 -M *
Never Summer 10300 20.5 19.8 104 16.8 16.6 101
North French Creek 10150 31.9 28.2 113 30.2 26.0 116
Old Battle 9850 29.5 30.4 97 29.1 33.2 88
Rawah 9100 10.6 10.8 98 14.4 15.0 96
Sage Creek Basin 7830 9.7 13.1 74 12.5 12.7 98
Sand Lake 10080 29.2 26.6 110 27.8 24.2 115
South Brush Creek 8480 10.4 11.8 88 12.1 13.6 89
Tower 10610 42.9 42.2 102 42.1 38.2 110
Webber Springs 9250 19.1 22.0 87 22.7 24.9 91
Whiskey Park 8950 27.4 26.4 104 28.9 26.8 108
Willow Creek Pass 9520 13.1 12.7 103 13.0 13.2 98
Zirkel 9320 24.5 27.6 89 30.5 30.3 101
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Basin Index (%) 99 102
SWEETWATER
Deer Park 9690 17.3 14.4 120 19.3 17.1 113
Larsen Creek 8880 7.5 10.2 74 12.3 13.3 92
South Pass 9040 14.7 14.5 101 16.7 15.0 111
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Basin Index (%) 101 106
LOWER N. PLATTE
Casper Mtn. 7940 8.9 13.0 68 11.0 13.4 82
Laprele Creek 8370 8.2 9.4 87 9.8 11.4 86
Reno Hill 8410 11.9 13.6 88 14.0 14.5 97
Windy Peak 7900 6.5 7.8 83 7.7 10.0 77
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Basin Index (%) 81 86
LARAMIE RIVER
Brooklyn Lake 10250 23.2 21.0 110 24.1 21.2 114
Cinnabar Park 9670 17.4 20.2 86 21.4 23.1 93
Crow Creek 8320 2.2 6.0 37 8.4 10.2 82
Deadman Hill 10240 17.7 15.8 112 18.2 17.1 106
Rawah 9100 10.6 10.8 98 14.4 15.0 96
Roach 9710 13.5 15.0 90 17.1 18.2 94
Windy Peak 7900 6.5 7.8 83 7.7 10.0 77
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Basin Index (%) 94 97
S. PLATTE
Crow Creek 8320 2.2 6.0 37 8.4 10.2 82
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Basin Index (%) 37 82
LITTLE SNAKE RIVER
Battle Mountain 7460 8.6 10.8 80 16.0 14.5 110
Divide Peak 8700 16.8 19.6 86 20.0 21.1 95
Elk River 8710 15.0 17.8 84 19.6 18.6 105
Elkhead Divide 8780 15.8 -M * 18.8 -M *
Little Snake River 8930 24.7 25.7 96 31.3 31.2 100
Old Battle 9850 29.5 30.4 97 29.1 33.2 88
Sage Creek Basin 7830 9.7 13.1 74 12.5 12.7 98
Sandstone RS 8150 12.4 12.8 97 15.1 17.2 88
Whiskey Park 8950 27.4 26.4 104 28.9 26.8 108
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Basin Index (%) 92 98
UPPER GREEN RIVER
Big Sandy Opening 9100 -M 13.0 * -M 12.3 *
Blind Bull Sum 8880 26.4 23.8 111 18.7 17.5 107
East Rim Divide 8010 10.7 10.4 103 11.5 10.9 106
Elkhart Park G.S. 9410 12.8 12.4 103 12.6 12.5 101
Gros Ventre Summit 8760 12.9 12.8 101 13.1 12.0 109
Gunsight Pass 9830 13.7 12.6 109 13.5 13.4 101
Indian Creek 9400 26.3 23.4 112 22.3 19.4 115
Kendall R.S. 7790 13.5 11.4 118 14.3 13.0 110
Larsen Creek 8880 7.5 10.2 74 12.3 13.3 92
Loomis Park 8240 14.9 15.3 97 16.6 16.4 101
New Fork Lake 8380 10.0 10.4 96 -M 10.5 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 13.9 12.5 111 16.1 13.8 117
Spring Creek Divide 9020 26.6 24.5 109 25.4 23.1 110
Triple Peak 8520 28.9 22.6 128 27.4 24.4 112
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Basin Index (%) 108 107
LOWER GREEN RIVER
Blacks Fork Jct 8880 10.7 9.0 119 13.4 12.2 110
Buck Pasture 9620 14.0 -M * 19.0 -M *
EF Blacks Fork GS 9360 9.7 11.4 85 12.6 10.8 117
Hams Fork 7870 11.2 11.0 102 12.7 10.8 118
Henrys Fork 10180 -M -M * 13.6 -M *
Hewinta 9510 8.9 10.0 89 14.6 13.2 111
Hickerson Park 9130 6.2 7.4 84 9.9 9.9 100
Hole-in-Rock 9170 5.9 6.9 86 9.9 9.6 103
Indian Creek 9400 26.3 23.4 112 22.3 19.4 115
Kelley R.S. 8240 17.2 14.6 118 18.0 15.8 114
Spirit Lk 10240 13.0 13.0 100 14.5 16.8 86
Steel Creek Park 10140 16.1 14.2 113 17.6 15.8 111
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Basin Index (%) 104 108
UPPER BEAR RIVER
Bear River RS 8510 7.0 9.4 74 13.3 11.8 113
Bug Lake 7980 18.6 18.6 100 19.6 17.6 111
Burts Miller Ranch 7900 4.5 5.6 80 12.1 7.4 164
Chalk Creek #1 9160 19.9 22.6 88 23.0 22.4 103
Giveout 6940 9.0 8.1 111 12.4 11.6 107
Hayden Fork 9160 13.4 14.8 91 21.4 19.8 108
Kelley R.S. 8240 17.2 14.6 118 18.0 15.8 114
Lily Lake 9130 12.2 12.4 98 15.1 14.7 103
Monte Cristo 8930 25.6 26.5 97 24.5 25.9 95
Salt River Summit 7630 15.6 13.4 116 13.8 15.6 88
Spring Creek Divide 9020 26.6 24.5 109 25.4 23.1 110
Trial Lake 9970 24.7 21.4 115 24.7 21.8 113
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Basin Index (%) 101 108
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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.
