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 9 , 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 -M 15.6 * -M 20.0 *
Blind Bull Sum 8880 -M 24.2 * -M 17.6 *
Cottonwood Creek 7710 -M 21.0 * -M 25.2 *
East Rim Divide 8010 9.9 10.2 97 11.7 11.2 104
Grand Targhee 9260 -M 43.8 * -M 31.4 *
Granite Creek 6770 -M 14.6 * -M 18.6 *
Grassy Lake 7330 -M 32.8 * -M 34.8 *
Gros Ventre Summit 8760 -M 12.8 * -M 12.1 *
Gunsight Pass 9830 -M 13.1 * -M 13.8 *
Lewis Lake Divide 7880 -M 30.7 * -M 32.6 *
Loomis Park 8240 -M 15.2 * -M 16.6 *
Phillips Bench 8160 -M 26.2 * -M 26.4 *
Salt River Summit 7630 -M 12.7 * -M 16.2 *
Snake River Station 6900 -M 15.6 * -M 22.4 *
Somsen Ranch 6830 13.2 10.0 132 16.8 16.6 101
Spring Creek Divide 9020 -M 25.2 * -M 23.4 *
Thumb Divide 7970 -M 16.4 * -M 17.6 *
Togwotee Pass 9590 -M 23.4 * -M 24.5 *
Triple Peak 8520 29.0 22.9 127 27.6 25.0 110
Two Ocean Plateau 9240 29.2 29.6 99 25.2 26.6 95
Willow Creek 8060 -M 29.2 * -M 32.8 *
Younts Peak 8340 -M 14.7 * -M 14.7 *
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Basin Index (%) 112* 102*
MADISON HEADWATERS IN WYOMING
Black Bear 8160 34.6 38.0 91 35.4 37.1 95
Canyon 7870 13.0 -M * 14.0 -M *
Madison Plateau 7710 -M 22.9 * -M 25.0 *
West Yellowstone 6680 10.8 9.2 117 13.4 14.0 96
Whiskey Creek 6790 16.5 14.8 111 21.4 20.0 107
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Basin Index (%) 100 99
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 -M 21.6 * -M 19.8 *
Canyon 7870 13.0 -M * 14.0 -M *
Evening Star 9040 -M 25.2 * -M 28.2 *
Fisher Creek 9110 -M 33.2 * -M 33.0 *
Monument Peak 8740 -M 20.8 * -M 21.6 *
Northeast Entrance 7420 -M 8.4 * -M 13.0 *
Parker Peak 9420 -M 21.4 * -M 20.1 *
Sylvan Lake 8440 -M 19.3 * -M 23.4 *
Thumb Divide 7970 -M 16.4 * -M 17.6 *
Two Ocean Plateau 9240 29.2 29.6 99 25.2 26.6 95
White Mill 8730 -M 24.6 * -M 23.0 *
Wolverine 7650 -M 9.2 * -M 12.7 *
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Basin Index (%) 99* 95*
WIND RIVER
Burroughs Creek 8760 -M -M * -M -M *
Castle Creek 8410 -M 6.3 * -M 8.8 *
Cold Springs 9640 6.9 6.8 101 8.9 9.6 93
Deer Park 9690 -M 15.2 * -M 18.4 *
Hobbs Park 10080 -M 14.4 * -M 13.5 *
Kirwin 9580 -M 10.6 * -M 12.1 *
Little Warm 9370 -M 10.0 * -M 11.8 *
South Pass 9040 -M 14.9 * -M 15.8 *
St. Lawrence Alt 8610 -M -M * -M -M *
Togwotee Pass 9590 -M 23.4 * -M 24.5 *
Townsend Creek 8720 -M 9.4 * -M 11.2 *
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Basin Index (%) 101* 93*
BIGHORN BASIN
Bald Mtn. 9360 -M 19.6 * -M 16.0 *
Bear Trap Meadow 8200 -M 5.7 * -M 9.0 *
Bone Springs Div 9340 -M 17.5 * -M 16.0 *
Grave Springs 8560 -M 8.2 * -M 9.4 *
Kirwin 9580 -M 10.6 * -M 12.1 *
Marquette 8800 10.0 7.5 133 11.6 9.4 123
Middle Powder 7760 -M 11.0 * -M 10.0 *
Owl Creek 8990 5.7 5.5 104 7.3 6.3 116
Powder River Pass 9480 -M 10.6 * -M 13.0 *
Shell Creek 9570 -M 15.8 * -M 13.8 *
Timber Creek 7910 -M 5.2 * -M 7.8 *
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Basin Index (%) 121* 120*
SHOSHONE RIVER
Blackwater 9840 -M 23.4 * -M 22.5 *
Evening Star 9040 -M 25.2 * -M 28.2 *
Marquette 8800 10.0 7.5 133 11.6 9.4 123
Sylvan Lake 8440 -M 19.3 * -M 23.4 *
Sylvan Road 7140 -M 10.5 * -M 16.2 *
Younts Peak 8340 -M 14.7 * -M 14.7 *
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Basin Index (%) 133* 123*
POWDER RIVER
Bear Trap Meadow 8200 -M 5.7 * -M 9.0 *
Cloud Peak Reservoir 9830 -M 14.8 * -M 13.6 *
Grave Springs 8560 -M 8.2 * -M 9.4 *
Hansen Sawmill 8360 5.3 6.1 87 7.7 8.6 90
Middle Powder 7760 -M 11.0 * -M 10.0 *
Powder River Pass 9480 -M 10.6 * -M 13.0 *
Soldier Park 8680 -M 7.4 * -M 9.4 *
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Basin Index (%) 87* 90*
TONGUE RIVER
Big Goose 8010 -M 8.8 * -M 10.4 *
Bone Springs Div 9340 -M 17.5 * -M 16.0 *
Burgess Junction 7900 -M 11.2 * -M 12.3 *
Dome Lake 8890 -M 11.6 * -M 13.2 *
Little Goose 8560 -M 9.8 * -M 12.4 *
Sucker Creek 8840 -M 12.6 * -M 14.0 *
Tie Creek 7050 -M 4.6 * -M 10.9 *
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Basin Index (%) * *
BELLE FOURCHE
Blind Park 6900 -M 6.6 * -M 11.2 *
Cole Canyon 5930 4.9 4.2 117 9.7 9.5 102
North Rapid Creek 6150 1.9 5.9 32 8.0 8.8 91
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Basin Index (%) 67 97
CHEYENNE RIVER BASIN
Blind Park 6900 -M 6.6 * -M 11.2 *
North Rapid Creek 6150 1.9 5.9 32 8.0 8.8 91
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Basin Index (%) 32 91
UPPER N. PLATTE
Arapaho Ridge 10960 20.5 22.4 92 20.8 22.2 94
Blackhall Mtn 9830 -M 30.4 * -M 29.6 *
Cinnabar Park 9670 -M 20.3 * -M 23.6 *
Columbine 9170 24.9 22.6 110 27.4 25.6 107
Divide Peak 8700 16.8 20.0 84 20.3 21.7 94
Joe Wright 10140 -M 21.2 * -M 26.1 *
Laprele Creek 8370 -M 9.6 * -M 11.8 *
Med Bow 10500 -M -M * -M -M *
Never Summer 10300 -M 20.6 * -M 17.5 *
North French Creek 10150 -M 30.0 * -M 27.0 *
Old Battle 9850 29.7 31.6 94 29.4 35.1 84
Rawah 9100 10.9 10.8 101 14.8 15.9 93
Sage Creek Basin 7830 -M 11.8 * -M 13.3 *
Sand Lake 10080 -M 28.3 * -M 25.2 *
South Brush Creek 8480 -M 11.1 * -M 13.8 *
Tower 10610 43.0 44.1 98 42.9 40.0 107
Webber Springs 9250 -M 22.6 * -M 25.6 *
Whiskey Park 8950 -M 26.9 * -M 27.6 *
Willow Creek Pass 9520 -M 13.4 * -M 13.7 *
Zirkel 9320 -M 27.9 * -M 30.7 *
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Basin Index (%) 96* 97*
SWEETWATER
Deer Park 9690 -M 15.2 * -M 18.4 *
Larsen Creek 8880 -M 9.2 * -M 13.5 *
South Pass 9040 -M 14.9 * -M 15.8 *
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Basin Index (%) * *
LOWER N. PLATTE
Casper Mtn. 7940 9.2 13.6 68 11.4 13.8 83
Laprele Creek 8370 -M 9.6 * -M 11.8 *
Reno Hill 8410 -M 14.0 * -M 15.3 *
Windy Peak 7900 -M 7.8 * -M 10.4 *
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Basin Index (%) 68* 83*
LARAMIE RIVER
Brooklyn Lake 10250 -M 22.4 * -M 22.0 *
Cinnabar Park 9670 -M 20.3 * -M 23.6 *
Crow Creek 8320 2.0 5.2 38 8.7 10.7 81
Deadman Hill 10240 -M 16.2 * -M 18.0 *
Rawah 9100 10.9 10.8 101 14.8 15.9 93
Roach 9710 -M 15.4 * -M 19.2 *
Windy Peak 7900 -M 7.8 * -M 10.4 *
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Basin Index (%) 81* 88*
S. PLATTE
Crow Creek 8320 2.0 5.2 38 8.7 10.7 81
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Basin Index (%) 38 81
LITTLE SNAKE RIVER
Battle Mountain 7460 -M 9.3 * -M 15.2 *
Divide Peak 8700 16.8 20.0 84 20.3 21.7 94
Elk River 8710 -M 16.8 * -M 19.4 *
Elkhead Divide 8780 -M -M * -M -M *
Little Snake River 8930 -M 26.5 * -M 32.8 *
Old Battle 9850 29.7 31.6 94 29.4 35.1 84
Sage Creek Basin 7830 -M 11.8 * -M 13.3 *
Sandstone RS 8150 -M 12.9 * -M 18.0 *
Whiskey Park 8950 -M 26.9 * -M 27.6 *
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Basin Index (%) 90* 88*
UPPER GREEN RIVER
Big Sandy Opening 9100 -M 13.2 * -M 13.4 *
Blind Bull Sum 8880 -M 24.2 * -M 17.6 *
East Rim Divide 8010 9.9 10.2 97 11.7 11.2 104
Elkhart Park G.S. 9410 -M 13.0 * -M 12.8 *
Gros Ventre Summit 8760 -M 12.8 * -M 12.1 *
Gunsight Pass 9830 -M 13.1 * -M 13.8 *
Indian Creek 9400 -M 23.6 * -M 19.6 *
Kendall R.S. 7790 -M 10.6 * -M 13.2 *
Larsen Creek 8880 -M 9.2 * -M 13.5 *
Loomis Park 8240 -M 15.2 * -M 16.6 *
New Fork Lake 8380 -M 10.4 * -M 10.6 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 -M 12.8 * -M 13.9 *
Spring Creek Divide 9020 -M 25.2 * -M 23.4 *
Triple Peak 8520 29.0 22.9 127 27.6 25.0 110
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Basin Index (%) 118* 109*
LOWER GREEN RIVER
Blacks Fork Jct 8880 -M 8.2 * -M 12.2 *
Buck Pasture 9620 -M -M * -M -M *
EF Blacks Fork GS 9360 -M 10.8 * -M 10.8 *
Hams Fork 7870 -M 10.4 * -M 11.1 *
Henrys Fork 10180 -M -M * 13.4 -M *
Hewinta 9510 9.5 10.2 93 14.8 13.4 110
Hickerson Park 9130 -M 7.4 * -M 10.5 *
Hole-in-Rock 9170 6.2 7.0 89 10.4 10.2 102
Indian Creek 9400 -M 23.6 * -M 19.6 *
Kelley R.S. 8240 -M 14.5 * -M 16.0 *
Spirit Lk 10240 -M 14.1 * -M 16.9 *
Steel Creek Park 10140 -M 14.6 * -M 16.6 *
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Basin Index (%) 91* 107*
UPPER BEAR RIVER
Bear River RS 8510 6.2 8.2 76 13.2 12.0 110
Bug Lake 7980 -M 18.0 * -M 18.2 *
Burts Miller Ranch 7900 3.5 4.5 78 12.2 8.0 152
Chalk Creek #1 9160 19.9 22.6 88 23.3 22.7 103
Giveout 6940 -M 7.3 * -M 12.2 *
Hayden Fork 9160 -M 14.6 * -M 20.6 *
Kelley R.S. 8240 -M 14.5 * -M 16.0 *
Lily Lake 9130 13.7 12.6 109 15.2 15.3 99
Monte Cristo 8930 -M 27.2 * -M 26.4 *
Salt River Summit 7630 -M 12.7 * -M 16.2 *
Spring Creek Divide 9020 -M 25.2 * -M 23.4 *
Trial Lake 9970 -M 22.2 * -M 22.4 *
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Basin Index (%) 90* 110*
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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.
