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: MARCH 24 , 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 18.8 15.9 118 20.0 18.9 106
Blind Bull Sum 8880 25.7 22.4 115 18.2 16.8 108
Cottonwood Creek 7710 24.5 20.6 119 26.9 23.3 115
East Rim Divide 8010 11.1 10.2 109 11.0 10.4 106
Grand Targhee 9260 38.0 38.1 100 26.1 28.6 91
Granite Creek 6770 -M 15.6 * -M 17.0 *
Grassy Lake 7330 31.4 30.6 103 32.3 32.5 99
Gros Ventre Summit 8760 12.9 11.6 111 12.6 11.2 112
Gunsight Pass 9830 13.8 12.1 114 13.2 12.7 104
Lewis Lake Divide 7880 32.1 29.0 111 31.9 30.4 105
Loomis Park 8240 15.6 14.4 108 16.0 15.6 103
Phillips Bench 8160 26.1 23.8 110 24.8 25.1 99
Salt River Summit 7630 15.9 12.6 126 13.3 14.2 94
Snake River Station 6900 20.4 16.6 123 20.6 20.1 102
Somsen Ranch 6830 15.0 11.6 129 16.0 15.0 107
Spring Creek Divide 9020 25.5 23.0 111 24.0 22.1 109
Thumb Divide 7970 14.9 14.9 100 13.9 15.8 88
Togwotee Pass 9590 23.9 21.9 109 24.9 22.6 110
Triple Peak 8520 27.1 22.1 123 26.5 23.8 111
Two Ocean Plateau 9240 27.8 26.8 104 22.2 24.0 92
Willow Creek 8060 33.8 27.5 123 33.2 30.2 110
Younts Peak 8340 15.3 13.8 111 14.3 13.5 106
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Basin Index (%) 112 104
MADISON HEADWATERS IN WYOMING
Black Bear 8160 33.5 36.2 93 32.8 33.4 98
Canyon 7870 12.2 -M * 12.6 -M *
Madison Plateau 7710 21.6 20.8 104 23.5 22.4 105
West Yellowstone 6680 11.1 10.2 109 12.0 13.1 92
Whiskey Creek 6790 15.5 14.4 108 19.6 18.1 108
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Basin Index (%) 100 101
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 20.0 20.4 98 18.6 18.7 99
Canyon 7870 12.2 -M * 12.6 -M *
Evening Star 9040 24.7 23.7 104 25.5 26.2 97
Fisher Creek 9110 27.4 30.2 91 28.6 30.0 95
Monument Peak 8740 17.1 19.1 90 19.7 19.4 102
Northeast Entrance 7420 10.1 9.7 104 11.7 12.1 97
Parker Peak 9420 22.9 19.6 117 21.4 18.6 115
Sylvan Lake 8440 18.7 18.6 101 20.5 21.1 97
Thumb Divide 7970 14.9 14.9 100 13.9 15.8 88
Two Ocean Plateau 9240 27.8 26.8 104 22.2 24.0 92
White Mill 8730 21.5 21.8 99 20.0 21.2 94
Wolverine 7650 13.0 10.8 120 14.5 11.4 127
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Basin Index (%) 101 99
WIND RIVER
Burroughs Creek 8760 12.3 -M * 15.9 -M *
Castle Creek 8410 6.9 7.0 99 7.8 7.8 100
Cold Springs 9640 7.9 6.8 116 8.3 8.2 101
Deer Park 9690 17.1 13.1 131 18.5 16.3 113
Hobbs Park 10080 14.1 12.8 110 14.2 11.1 128
Kirwin 9580 10.6 9.8 108 12.6 10.4 121
Little Warm 9370 10.8 9.2 117 12.8 11.2 114
South Pass 9040 14.6 13.6 107 16.0 14.0 114
St. Lawrence Alt 8610 5.7 -M * 8.7 -M *
Togwotee Pass 9590 23.9 21.9 109 24.9 22.6 110
Townsend Creek 8720 10.3 8.2 126 12.6 9.2 137
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Basin Index (%) 113 115
BIGHORN BASIN
Bald Mtn. 9360 19.4 16.8 115 16.1 14.7 110
Bear Trap Meadow 8200 5.8 6.0 97 5.9 7.4 80
Bone Springs Div 9340 14.6 15.0 97 10.9 13.6 80
Grave Springs 8560 8.2 8.0 102 9.4 8.6 109
Kirwin 9580 10.6 9.8 108 12.6 10.4 121
Marquette 8800 9.8 6.5 151 10.9 8.0 136
Middle Powder 7760 9.9 9.7 102 7.8 9.0 87
Owl Creek 8990 5.6 5.0 112 6.3 5.3 119
Powder River Pass 9480 7.2 10.0 72 9.1 11.4 80
Shell Creek 9570 11.3 13.8 82 10.3 12.3 84
Timber Creek 7910 5.9 4.0 148 7.1 6.6 108
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Basin Index (%) 104 99
SHOSHONE RIVER
Blackwater 9840 23.0 20.8 111 21.6 20.2 107
Evening Star 9040 24.7 23.7 104 25.5 26.2 97
Marquette 8800 9.8 6.5 151 10.9 8.0 136
Sylvan Lake 8440 18.7 18.6 101 20.5 21.1 97
Sylvan Road 7140 11.1 11.4 97 12.6 15.1 83
Younts Peak 8340 15.3 13.8 111 14.3 13.5 106
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Basin Index (%) 108 101
POWDER RIVER
Bear Trap Meadow 8200 5.8 6.0 97 5.9 7.4 80
Cloud Peak Reservoir 9830 10.4 13.5 77 10.7 11.8 91
Grave Springs 8560 8.2 8.0 102 9.4 8.6 109
Hansen Sawmill 8360 4.8 6.0 80 6.2 7.8 79
Middle Powder 7760 9.9 9.7 102 7.8 9.0 87
Powder River Pass 9480 7.2 10.0 72 9.1 11.4 80
Soldier Park 8680 3.6 6.1 59 5.9 8.0 74
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Basin Index (%) 84 86
TONGUE RIVER
Big Goose 8010 7.2 7.4 97 8.7 8.8 99
Bone Springs Div 9340 14.6 15.0 97 10.9 13.6 80
Burgess Junction 7900 10.6 9.6 110 12.0 10.4 115
Dome Lake 8890 9.7 10.6 92 6.9 11.2 62
Little Goose 8560 8.7 8.4 104 10.0 10.4 96
Sucker Creek 8840 11.6 11.1 105 13.4 12.4 108
Tie Creek 7050 8.5 4.6 185 11.3 9.4 120
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Basin Index (%) 106 96
BELLE FOURCHE
Blind Park 6900 5.2 7.0 74 8.1 9.9 82
Cole Canyon 5930 6.2 5.1 122 8.2 7.8 105
North Rapid Creek 6150 4.1 6.6 62 6.8 8.1 84
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Basin Index (%) 83 90
CHEYENNE RIVER BASIN
Blind Park 6900 5.2 7.0 74 8.1 9.9 82
North Rapid Creek 6150 4.1 6.6 62 6.8 8.1 84
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Basin Index (%) 68 83
UPPER N. PLATTE
Arapaho Ridge 10960 19.6 19.8 99 18.8 19.4 97
Blackhall Mtn 9830 28.0 27.9 100 28.8 26.9 107
Cinnabar Park 9670 17.0 19.2 89 20.0 21.5 93
Columbine 9170 25.4 21.7 117 25.6 22.1 116
Divide Peak 8700 16.4 18.2 90 18.4 20.0 92
Joe Wright 10140 21.2 18.5 115 26.0 23.8 109
Laprele Creek 8370 8.2 8.8 93 9.1 10.6 86
Med Bow 10500 37.7 -M * 31.1 -M *
Never Summer 10300 18.4 18.4 100 15.1 15.3 99
North French Creek 10150 29.0 26.1 111 27.4 24.1 114
Old Battle 9850 26.8 27.5 97 26.6 30.6 87
Rawah 9100 10.6 10.0 106 13.2 14.0 94
Sage Creek Basin 7830 11.1 12.2 91 11.3 11.8 96
Sand Lake 10080 26.6 24.4 109 25.4 22.6 112
South Brush Creek 8480 10.6 11.2 95 10.6 12.4 85
Tower 10610 40.8 39.0 105 36.5 36.6 100
Webber Springs 9250 18.3 20.6 89 21.0 23.2 91
Whiskey Park 8950 25.9 24.7 105 27.0 25.3 107
Willow Creek Pass 9520 11.9 12.0 99 11.9 12.4 96
Zirkel 9320 25.2 26.2 96 29.2 28.2 104
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Basin Index (%) 101 100
SWEETWATER
Deer Park 9690 17.1 13.1 131 18.5 16.3 113
Larsen Creek 8880 8.5 10.6 80 11.9 11.9 100
South Pass 9040 14.6 13.6 107 16.0 14.0 114
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Basin Index (%) 108 110
LOWER N. PLATTE
Casper Mtn. 7940 9.3 12.0 78 10.1 12.2 83
Laprele Creek 8370 8.2 8.8 93 9.1 10.6 86
Reno Hill 8410 11.3 12.6 90 13.1 12.6 104
Windy Peak 7900 6.7 7.6 88 7.0 8.8 80
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Basin Index (%) 87 89
LARAMIE RIVER
Brooklyn Lake 10250 22.3 19.8 113 22.5 19.6 115
Cinnabar Park 9670 17.0 19.2 89 20.0 21.5 93
Crow Creek 8320 3.2 6.4 50 7.2 9.5 76
Deadman Hill 10240 16.9 15.2 111 17.2 15.8 109
Rawah 9100 10.6 10.0 106 13.2 14.0 94
Roach 9710 13.0 14.2 92 15.8 16.6 95
Windy Peak 7900 6.7 7.6 88 7.0 8.8 80
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Basin Index (%) 97 97
S. PLATTE
Crow Creek 8320 3.2 6.4 50 7.2 9.5 76
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Basin Index (%) 50 76
LITTLE SNAKE RIVER
Battle Mountain 7460 10.6 11.1 95 14.4 13.7 105
Divide Peak 8700 16.4 18.2 90 18.4 20.0 92
Elk River 8710 15.5 16.8 92 18.3 17.4 105
Elkhead Divide 8780 15.7 -M * 17.3 -M *
Little Snake River 8930 24.4 24.6 99 29.4 29.2 101
Old Battle 9850 26.8 27.5 97 26.6 30.6 87
Sage Creek Basin 7830 11.1 12.2 91 11.3 11.8 96
Sandstone RS 8150 13.2 11.7 113 13.6 16.5 82
Whiskey Park 8950 25.9 24.7 105 27.0 25.3 107
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Basin Index (%) 98 97
UPPER GREEN RIVER
Big Sandy Opening 9100 11.0 12.2 90 11.0 11.9 92
Blind Bull Sum 8880 25.7 22.4 115 18.2 16.8 108
East Rim Divide 8010 11.1 10.2 109 11.0 10.4 106
Elkhart Park G.S. 9410 12.3 11.6 106 11.8 11.7 101
Gros Ventre Summit 8760 12.9 11.6 111 12.6 11.2 112
Gunsight Pass 9830 13.8 12.1 114 13.2 12.7 104
Indian Creek 9400 25.0 20.7 121 21.2 18.0 118
Kendall R.S. 7790 14.3 11.4 125 14.0 12.4 113
Larsen Creek 8880 8.5 10.6 80 11.9 11.9 100
Loomis Park 8240 15.6 14.4 108 16.0 15.6 103
New Fork Lake 8380 10.5 10.0 105 -M 9.8 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 14.3 12.2 117 15.7 12.8 123
Spring Creek Divide 9020 25.5 23.0 111 24.0 22.1 109
Triple Peak 8520 27.1 22.1 123 26.5 23.8 111
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Basin Index (%) 111 108
LOWER GREEN RIVER
Blacks Fork Jct 8880 10.5 7.8 135 12.7 11.2 113
Buck Pasture 9620 13.6 -M * 17.6 -M *
EF Blacks Fork GS 9360 9.7 11.0 88 11.7 10.0 117
Hams Fork 7870 12.0 10.6 113 12.3 9.8 126
Henrys Fork 10180 -M -M * 12.0 -M *
Hewinta 9510 10.0 9.4 106 13.8 12.0 115
Hickerson Park 9130 6.7 7.0 96 8.8 9.1 97
Hole-in-Rock 9170 5.7 7.0 81 9.0 8.9 101
Indian Creek 9400 25.0 20.7 121 21.2 18.0 118
Kelley R.S. 8240 16.7 13.8 121 17.1 14.7 116
Spirit Lk 10240 12.3 11.5 107 13.2 15.6 85
Steel Creek Park 10140 15.1 13.4 113 16.4 14.0 117
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Basin Index (%) 110 110
UPPER BEAR RIVER
Bear River RS 8510 8.7 8.4 104 12.1 10.8 112
Bug Lake 7980 18.7 17.1 109 18.4 16.0 115
Burts Miller Ranch 7900 6.1 5.4 113 11.0 6.8 162
Chalk Creek #1 9160 -M 21.0 * -M 21.0 *
Giveout 6940 9.6 7.8 123 11.9 10.7 111
Hayden Fork 9160 13.4 13.6 99 19.8 18.3 108
Kelley R.S. 8240 16.7 13.8 121 17.1 14.7 116
Lily Lake 9130 12.1 11.6 104 14.1 13.9 101
Monte Cristo 8930 25.0 24.6 102 23.4 22.8 103
Salt River Summit 7630 15.9 12.6 126 13.3 14.2 94
Spring Creek Divide 9020 25.5 23.0 111 24.0 22.1 109
Trial Lake 9970 24.0 20.4 118 23.2 20.1 115
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Basin Index (%) 111 111
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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.
