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 13 , 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 16.3 14.6 112 20.9 20.3 103
Blind Bull Sum 8880 26.8 24.5 109 18.7 17.8 105
Cottonwood Creek 7710 22.6 21.0 108 28.5 25.7 111
East Rim Divide 8010 7.4 10.0 74 11.5 11.4 101
Grand Targhee 9260 39.2 45.4 86 30.5 33.1 92
Granite Creek 6770 15.7 13.8 114 18.3 18.7 98
Grassy Lake 7330 30.2 32.3 93 35.2 35.7 99
Gros Ventre Summit 8760 11.8 12.8 92 13.3 12.4 107
Gunsight Pass 9830 13.5 12.8 105 13.6 14.4 94
Lewis Lake Divide 7880 31.4 32.0 98 35.7 33.4 107
Loomis Park 8240 12.9 14.8 87 16.8 17.0 99
Phillips Bench 8160 25.0 26.2 95 27.1 26.8 101
Salt River Summit 7630 12.7 12.0 106 14.1 16.4 86
Snake River Station 6900 16.0 15.2 105 22.2 22.8 97
Somsen Ranch 6830 9.9 9.8 101 16.7 16.8 99
Spring Creek Divide 9020 28.1 25.1 112 25.6 23.6 108
Thumb Divide 7970 -M 15.8 * -M 18.3 *
Togwotee Pass 9590 23.9 23.9 100 25.8 25.0 103
Triple Peak 8520 27.8 22.4 124 27.5 25.6 107
Two Ocean Plateau 9240 30.2 30.7 98 25.3 27.4 92
Willow Creek 8060 33.7 28.6 118 35.2 34.1 103
Younts Peak 8340 14.3 14.4 99 14.9 15.2 98
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Basin Index (%) 102 101
MADISON HEADWATERS IN WYOMING
Black Bear 8160 34.4 38.6 89 35.4 37.6 94
Canyon 7870 12.6 -M * 14.2 -M *
Madison Plateau 7710 23.5 23.2 101 25.8 25.2 102
West Yellowstone 6680 8.9 8.2 109 13.6 14.0 97
Whiskey Creek 6790 15.8 15.2 104 21.4 20.8 103
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Basin Index (%) 97 99
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 23.4 22.2 105 21.3 20.4 104
Canyon 7870 12.6 -M * 14.2 -M *
Evening Star 9040 26.3 25.4 104 28.7 28.6 100
Fisher Creek 9110 30.8 34.0 91 32.4 34.0 95
Monument Peak 8740 19.2 21.2 91 21.8 22.4 97
Northeast Entrance 7420 -M 8.2 * -M 13.3 *
Parker Peak 9420 26.1 21.9 119 24.0 20.4 118
Sylvan Lake 8440 17.0 20.0 85 22.4 23.6 95
Thumb Divide 7970 -M 15.8 * -M 18.3 *
Two Ocean Plateau 9240 30.2 30.7 98 25.3 27.4 92
White Mill 8730 25.0 24.9 100 22.8 23.4 97
Wolverine 7650 10.9 8.8 124 15.3 12.8 120
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Basin Index (%) 100 100
WIND RIVER
Burroughs Creek 8760 10.1 -M * 16.6 -M *
Castle Creek 8410 4.2 6.0 70 8.2 9.0 91
Cold Springs 9640 5.0 6.9 72 8.8 9.7 91
Deer Park 9690 16.4 15.2 108 19.8 18.7 106
Hobbs Park 10080 14.2 15.4 92 15.0 14.2 106
Kirwin 9580 11.0 11.2 98 14.2 12.4 115
Little Warm 9370 9.7 9.8 99 13.2 12.0 110
South Pass 9040 13.4 15.6 86 16.8 16.4 102
St. Lawrence Alt 8610 2.3 -M * 9.6 -M *
Togwotee Pass 9590 23.9 23.9 100 25.8 25.0 103
Townsend Creek 8720 9.7 9.9 98 13.3 12.5 106
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Basin Index (%) 94 104
BIGHORN BASIN
Bald Mtn. 9360 21.2 19.6 108 17.2 16.4 105
Bear Trap Meadow 8200 2.9 5.6 52 6.9 9.4 73
Bone Springs Div 9340 16.1 18.0 89 12.2 16.3 75
Grave Springs 8560 7.1 8.8 81 10.2 10.2 100
Kirwin 9580 11.0 11.2 98 14.2 12.4 115
Marquette 8800 8.9 7.6 117 11.6 10.0 116
Middle Powder 7760 8.8 11.4 77 8.7 10.2 85
Owl Creek 8990 3.3 5.4 61 7.3 6.6 111
Powder River Pass 9480 6.4 10.6 60 10.6 13.3 80
Shell Creek 9570 13.2 16.1 82 12.2 14.2 86
Timber Creek 7910 5.9 5.2 113 8.7 8.3 105
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Basin Index (%) 88 94
SHOSHONE RIVER
Blackwater 9840 25.0 24.0 104 23.7 22.6 105
Evening Star 9040 26.3 25.4 104 28.7 28.6 100
Marquette 8800 8.9 7.6 117 11.6 10.0 116
Sylvan Lake 8440 17.0 20.0 85 22.4 23.6 95
Sylvan Road 7140 3.7 10.2 36 14.0 16.5 85
Younts Peak 8340 14.3 14.4 99 14.9 15.2 98
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Basin Index (%) 94 99
POWDER RIVER
Bear Trap Meadow 8200 2.9 5.6 52 6.9 9.4 73
Cloud Peak Reservoir 9830 10.8 15.2 71 12.4 14.2 87
Grave Springs 8560 7.1 8.8 81 10.2 10.2 100
Hansen Sawmill 8360 4.2 6.2 68 7.7 8.8 88
Middle Powder 7760 8.8 11.4 77 8.7 10.2 85
Powder River Pass 9480 6.4 10.6 60 10.6 13.3 80
Soldier Park 8680 2.0 6.1 33 7.2 10.0 72
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Basin Index (%) 66 84
TONGUE RIVER
Big Goose 8010 7.6 9.0 84 10.1 10.6 95
Bone Springs Div 9340 16.1 18.0 89 12.2 16.3 75
Burgess Junction 7900 10.9 11.4 96 12.4 12.6 98
Dome Lake 8890 10.4 11.8 88 11.2 13.6 82
Little Goose 8560 9.0 10.4 87 12.3 12.8 96
Sucker Creek 8840 11.1 12.5 89 14.8 14.8 100
Tie Creek 7050 5.4 4.4 123 12.1 11.4 106
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Basin Index (%) 91 92
BELLE FOURCHE
Blind Park 6900 .6 5.1 12 9.7 11.9 82
Cole Canyon 5930 2.7 3.7 73 9.5 9.6 99
North Rapid Creek 6150 .0 5.8 0 8.0 9.5 84
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Basin Index (%) 23 88
CHEYENNE RIVER BASIN
Blind Park 6900 .6 5.1 12 9.7 11.9 82
North Rapid Creek 6150 .0 5.8 0 8.0 9.5 84
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Basin Index (%) 6 83
UPPER N. PLATTE
Arapaho Ridge 10960 20.0 22.8 88 20.7 22.4 92
Blackhall Mtn 9830 28.8 30.6 94 31.1 30.4 102
Cinnabar Park 9670 15.8 20.8 76 21.7 24.0 90
Columbine 9170 21.7 22.0 99 27.4 25.9 106
Divide Peak 8700 15.1 20.0 76 20.2 21.8 93
Joe Wright 10140 22.6 21.6 105 28.5 26.2 109
Laprele Creek 8370 6.4 9.0 71 10.0 12.2 82
Med Bow 10500 38.4 -M * 35.0 -M *
Never Summer 10300 20.5 20.8 99 17.4 17.8 98
North French Creek 10150 31.9 31.2 102 30.8 28.0 110
Old Battle 9850 29.8 32.2 93 29.4 35.4 83
Rawah 9100 8.7 10.3 84 14.7 16.2 91
Sage Creek Basin 7830 5.7 11.2 51 12.6 13.3 95
Sand Lake 10080 29.4 29.4 100 28.5 26.0 110
South Brush Creek 8480 8.2 10.2 80 12.4 14.1 88
Tower 10610 42.5 45.0 94 43.2 40.8 106
Webber Springs 9250 17.0 21.6 79 23.1 25.9 89
Whiskey Park 8950 26.1 26.6 98 29.2 28.0 104
Willow Creek Pass 9520 13.4 14.0 96 13.5 14.0 96
Zirkel 9320 20.7 25.6 81 30.9 31.0 100
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Basin Index (%) 90 98
SWEETWATER
Deer Park 9690 16.4 15.2 108 19.8 18.7 106
Larsen Creek 8880 5.0 8.5 59 12.5 14.0 89
South Pass 9040 13.4 15.6 86 16.8 16.4 102
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Basin Index (%) 89 100
LOWER N. PLATTE
Casper Mtn. 7940 7.2 13.7 53 11.4 14.2 80
Laprele Creek 8370 6.4 9.0 71 10.0 12.2 82
Reno Hill 8410 11.1 14.4 77 14.4 16.2 89
Windy Peak 7900 5.1 7.4 69 8.0 10.5 76
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Basin Index (%) 67 82
LARAMIE RIVER
Brooklyn Lake 10250 22.3 22.6 99 24.7 22.6 109
Cinnabar Park 9670 15.8 20.8 76 21.7 24.0 90
Crow Creek 8320 .1 5.0 2 8.7 10.9 80
Deadman Hill 10240 17.8 16.8 106 18.5 18.5 100
Rawah 9100 8.7 10.3 84 14.7 16.2 91
Roach 9710 12.2 15.6 78 17.4 19.8 88
Windy Peak 7900 5.1 7.4 69 8.0 10.5 76
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Basin Index (%) 83 93
S. PLATTE
Crow Creek 8320 .1 5.0 2 8.7 10.9 80
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Basin Index (%) 2 80
LITTLE SNAKE RIVER
Battle Mountain 7460 4.6 8.2 56 16.1 15.6 103
Divide Peak 8700 15.1 20.0 76 20.2 21.8 93
Elk River 8710 11.9 17.0 70 19.9 20.0 100
Elkhead Divide 8780 13.6 -M * 19.0 -M *
Little Snake River 8930 21.5 26.2 82 31.3 32.8 95
Old Battle 9850 29.8 32.2 93 29.4 35.4 83
Sage Creek Basin 7830 5.7 11.2 51 12.6 13.3 95
Sandstone RS 8150 8.7 12.2 71 15.2 18.3 83
Whiskey Park 8950 26.1 26.6 98 29.2 28.0 104
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Basin Index (%) 80 94
UPPER GREEN RIVER
Big Sandy Opening 9100 11.2 13.4 84 12.0 13.5 89
Blind Bull Sum 8880 26.8 24.5 109 18.7 17.8 105
East Rim Divide 8010 7.4 10.0 74 11.5 11.4 101
Elkhart Park G.S. 9410 11.3 12.8 88 12.6 12.9 98
Gros Ventre Summit 8760 11.8 12.8 92 13.3 12.4 107
Gunsight Pass 9830 13.5 12.8 105 13.6 14.4 94
Indian Creek 9400 24.7 23.5 105 22.5 19.8 114
Kendall R.S. 7790 10.8 10.2 106 14.4 13.3 108
Larsen Creek 8880 5.0 8.5 59 12.5 14.0 89
Loomis Park 8240 12.9 14.8 87 16.8 17.0 99
New Fork Lake 8380 7.3 9.9 74 -M 10.8 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 11.6 11.8 98 16.3 14.0 116
Spring Creek Divide 9020 28.1 25.1 112 25.6 23.6 108
Triple Peak 8520 27.8 22.4 124 27.5 25.6 107
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Basin Index (%) 99 104
LOWER GREEN RIVER
Blacks Fork Jct 8880 8.7 7.6 114 13.6 12.4 110
Buck Pasture 9620 11.6 -M * 19.2 -M *
EF Blacks Fork GS 9360 7.8 11.8 66 12.9 11.4 113
Hams Fork 7870 7.6 9.2 83 12.8 11.2 114
Henrys Fork 10180 -M -M * 13.4 -M *
Hewinta 9510 6.2 9.8 63 14.7 13.6 108
Hickerson Park 9130 3.6 6.8 53 9.8 10.8 91
Hole-in-Rock 9170 4.0 7.2 56 10.4 10.4 100
Indian Creek 9400 24.7 23.5 105 22.5 19.8 114
Kelley R.S. 8240 15.7 14.6 108 18.1 16.4 110
Spirit Lk 10240 11.6 13.6 85 14.8 18.1 82
Steel Creek Park 10140 15.8 15.4 103 17.7 16.8 105
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Basin Index (%) 88 105
UPPER BEAR RIVER
Bear River RS 8510 2.6 6.9 38 13.2 12.2 108
Bug Lake 7980 15.2 18.4 83 19.7 18.4 107
Burts Miller Ranch 7900 .2 2.3 9 12.2 8.1 151
Chalk Creek #1 9160 18.2 23.1 79 23.3 23.4 100
Giveout 6940 5.1 5.4 94 12.7 12.7 100
Hayden Fork 9160 9.2 14.2 65 21.5 21.1 102
Kelley R.S. 8240 15.7 14.6 108 18.1 16.4 110
Lily Lake 9130 9.4 12.6 75 15.2 15.6 97
Monte Cristo 8930 23.3 27.2 86 25.0 26.4 95
Salt River Summit 7630 12.7 12.0 106 14.1 16.4 86
Spring Creek Divide 9020 28.1 25.1 112 25.6 23.6 108
Trial Lake 9970 24.2 22.2 109 25.1 22.6 111
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Basin Index (%) 89 104
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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.
