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 SATURDAY: OCTOBER 4 , 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 .0 .0 * .4 .1 400
Blind Bull Sum 8880 .0 .0 * .1 .1 100
Cottonwood Creek 7710 .0 .0 * .1 .1 100
East Rim Divide 8010 .0 .0 * .3 .0 *
Grand Targhee 9260 .0 .2 0* .3 .4 75
Granite Creek 6770 .0 .0 * .2 .1 200
Grassy Lake 7330 .0 .0 * .1 .1 100
Gros Ventre Summit 8760 .0 .0 * -M .1 *
Gunsight Pass 9830 .5 .0 * .2 .2 100
Lewis Lake Divide 7880 .1 .0 * .2 .1 200
Loomis Park 8240 .1 .0 * .1 .1 100
Phillips Bench 8160 .1 .0 * .4 .1 400
Salt River Summit 7630 .0 .0 * .1 .0 *
Snake River Station 6900 .0 .0 * .2 .1 200
Somsen Ranch 6830 .1 .0 * .1 .1 100
Spring Creek Divide 9020 .0 .0 * .3 .2 150
Thumb Divide 7970 .1 .0 * .1 .1 100
Togwotee Pass 9590 .0 .0 * .2 .2 100
Triple Peak 8520 .2 .0 * .3 .2 150
Two Ocean Plateau 9240 .1 .0 * .3 .3 100
Willow Creek 8060 .0 .0 * .4 .2 200
Younts Peak 8340 .1 .0 * .4 .1 400
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Basin Index (%) 700* 166
MADISON HEADWATERS IN WYOMING
Black Bear 8160 .0 .0 * .0 .2 0
Canyon 7870 .0 .0 * .0 .1 0
Madison Plateau 7710 .0 .0 * .1 .1 100
West Yellowstone 6680 .0 .0 * .1 .0 *
Whiskey Creek 6790 .1 .0 * .1 .2 50
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Basin Index (%) * 50
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 .0 .0 * .0 .2 0
Canyon 7870 .0 .0 * .0 .1 0
Evening Star 9040 .1 .0 * .2 .1 200
Fisher Creek 9110 .0 .0 * .0 .2 0
Monument Peak 8740 .0 .0 * .2 .2 100
Northeast Entrance 7420 .0 .0 * .1 .1 100
Parker Peak 9420 .0 .0 * .0 .2 0
Sylvan Lake 8440 .1 .0 * .2 .1 200
Thumb Divide 7970 .1 .0 * .1 .1 100
Two Ocean Plateau 9240 .1 .0 * .3 .3 100
White Mill 8730 .0 .0 * .0 .2 0
Wolverine 7650 .0 .0 * .0 .2 0
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Basin Index (%) * 55
WIND RIVER
Burroughs Creek 8760 .0 -M * .2 -M *
Castle Creek 8410 .3 .0 * .2 .2 100
Cold Springs 9640 .0 .0 * .0 .1 0
Deer Park 9690 .0 .0 * .0 .1 0
Hobbs Park 10080 .0 .0 * .1 .1 100
Kirwin 9580 .1 .0 * .4 .2 200
Little Warm 9370 .0 .0 * .3 .2 150
South Pass 9040 .1 .0 * -M .1 *
St. Lawrence Alt 8610 .0 -M * .1 -M *
Togwotee Pass 9590 .0 .0 * .2 .2 100
Townsend Creek 8720 .0 .0 * .0 .1 0
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Basin Index (%) * 100
BIGHORN BASIN
Bald Mtn. 9360 .0 .0 * .5 .2 250
Bear Trap Meadow 8200 .0 .0 * .1 .1 100
Bone Springs Div 9340 .0 .0 * .1 .2 50
Grave Springs 8560 .1 .0 * .0 .1 0
Kirwin 9580 .1 .0 * .4 .2 200
Marquette 8800 .1 .0 * .1 .2 50
Middle Powder 7760 .2 .0 * .0 .2 0
Owl Creek 8990 .0 .0 * -M .1 *
Powder River Pass 9480 .0 .0 * .0 .2 0
Shell Creek 9570 .1 .4 25* .0 .2 0
Timber Creek 7910 .0 .0 * .0 .1 0
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Basin Index (%) 150* 71
SHOSHONE RIVER
Blackwater 9840 .2 .0 * .0 .2 0
Evening Star 9040 .1 .0 * .2 .1 200
Marquette 8800 .1 .0 * .1 .2 50
Sylvan Lake 8440 .1 .0 * .2 .1 200
Sylvan Road 7140 .1 .0 * .1 .1 100
Younts Peak 8340 .1 .0 * .4 .1 400
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Basin Index (%) * 125
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * .1 .1 100
Cloud Peak Reservoir 9830 .0 .0 * .0 .3 0
Grave Springs 8560 .1 .0 * .0 .1 0
Hansen Sawmill 8360 .0 .0 * .0 .1 0
Middle Powder 7760 .2 .0 * .0 .2 0
Powder River Pass 9480 .0 .0 * .0 .2 0
Soldier Park 8680 .0 .0 * .0 .3 0
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Basin Index (%) * 8
TONGUE RIVER
Big Goose 8010 .1 .0 * .1 .1 100
Bone Springs Div 9340 .0 .0 * .1 .2 50
Burgess Junction 7900 .0 .0 * .0 .2 0
Dome Lake 8890 .1 .0 * .0 .2 0
Little Goose 8560 .1 .0 * .0 .2 0
Sucker Creek 8840 .1 .0 * .0 .1 0
Tie Creek 7050 .1 .0 * .1 .1 100
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Basin Index (%) * 27
BELLE FOURCHE
Blind Park 6900 .0 .0 * .1 .1 100
Cole Canyon 5930 .3 .0 * .1 .1 100
North Rapid Creek 6150 .1 .0 * .0 .1 0
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Basin Index (%) * 67
CHEYENNE RIVER BASIN
Blind Park 6900 .0 .0 * .1 .1 100
North Rapid Creek 6150 .1 .0 * .0 .1 0
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Basin Index (%) * 50
UPPER N. PLATTE
Arapaho Ridge 10960 .0 .0 * .0 .2 0
Blackhall Mtn 9830 .0 .0 * -M .3 *
Cinnabar Park 9670 .0 .0 * -M .1 *
Columbine 9170 .2 .0 * .2 .2 100
Divide Peak 8700 .2 .0 * .0 .0 *
Joe Wright 10140 .1 .0 * .0 .2 0
Laprele Creek 8370 .0 .0 * .0 .1 0
Med Bow 10500 .0 -M * .0 -M *
Never Summer 10300 .0 .0 * .0 .2 0
North French Creek 10150 .1 .0 * .0 .1 0
Old Battle 9850 .1 .0 * .1 .0 *
Rawah 9100 .0 .0 * -M .1 *
Sage Creek Basin 7830 .0 .0 * .0 .2 0
Sand Lake 10080 .1 .0 * .0 .1 0
South Brush Creek 8480 .0 .0 * .0 .1 0
Tower 10610 .0 .0 * .1 .2 50
Webber Springs 9250 .2 .0 * .1 .1 100
Whiskey Park 8950 .1 .0 * .0 .2 0
Willow Creek Pass 9520 .0 .0 * .1 .1 100
Zirkel 9320 .0 .0 * .1 .3 33
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Basin Index (%) * 30
SWEETWATER
Deer Park 9690 .0 .0 * .0 .1 0
Larsen Creek 8880 .3 .0 * .0 .4 0
South Pass 9040 .1 .0 * -M .1 *
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Basin Index (%) * 0
LOWER N. PLATTE
Casper Mtn. 7940 .0 .0 * .0 .0 *
Laprele Creek 8370 .0 .0 * .0 .1 0
Reno Hill 8410 .0 .0 * .0 .0 *
Windy Peak 7900 .0 .0 * .1 .0 *
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Basin Index (%) * 100
LARAMIE RIVER
Brooklyn Lake 10250 .0 .0 * .0 .0 *
Cinnabar Park 9670 .0 .0 * -M .1 *
Crow Creek 8320 .0 .0 * .0 .0 *
Deadman Hill 10240 .1 .0 * .0 .1 0
Rawah 9100 .0 .0 * -M .1 *
Roach 9710 .0 .0 * .0 .1 0
Windy Peak 7900 .0 .0 * .1 .0 *
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Basin Index (%) * 50
S. PLATTE
Crow Creek 8320 .0 .0 * .0 .0 *
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Basin Index (%) * *
LITTLE SNAKE RIVER
Battle Mountain 7460 .2 .0 * .1 .1 100
Divide Peak 8700 .2 .0 * .0 .0 *
Elk River 8710 .1 .0 * -M .1 *
Elkhead Divide 8780 .1 -M * .0 -M *
Little Snake River 8930 .0 .0 * .0 .2 0
Old Battle 9850 .1 .0 * .1 .0 *
Sage Creek Basin 7830 .0 .0 * .0 .2 0
Sandstone RS 8150 .0 .0 * .1 .1 100
Whiskey Park 8950 .1 .0 * .0 .2 0
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Basin Index (%) * 38
UPPER GREEN RIVER
Big Sandy Opening 9100 .6 .0 * .0 .1 0
Blind Bull Sum 8880 .0 .0 * .1 .1 100
East Rim Divide 8010 .0 .0 * .3 .0 *
Elkhart Park G.S. 9410 .0 .0 * .1 .1 100
Gros Ventre Summit 8760 .0 .0 * -M .1 *
Gunsight Pass 9830 .5 .0 * .2 .2 100
Indian Creek 9400 .1 .0 * .2 .1 200
Kendall R.S. 7790 .1 .0 * .2 .0 *
Larsen Creek 8880 .3 .0 * .0 .4 0
Loomis Park 8240 .1 .0 * .1 .1 100
New Fork Lake 8380 .0 .0 * -M .0 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 .2 .0 * .1 .0 *
Spring Creek Divide 9020 .0 .0 * .3 .2 150
Triple Peak 8520 .2 .0 * .3 .2 150
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Basin Index (%) * 127
LOWER GREEN RIVER
Blacks Fork Jct 8880 .2 -M * .0 -M *
Buck Pasture 9620 .0 -M * .0 -M *
EF Blacks Fork GS 9360 .0 -M * .1 -M *
Hams Fork 7870 .1 .0 * .0 .0 *
Henrys Fork 10180 -M -M * -M -M *
Hewinta 9510 .0 .0 * .0 .2 0
Hickerson Park 9130 .0 .0 * .0 .2 0
Hole-in-Rock 9170 .0 .0 * .1 .1 100
Indian Creek 9400 .1 .0 * .2 .1 200
Kelley R.S. 8240 .1 .0 * .2 .1 200
Spirit Lk 10240 .0 .0 * .1 .1 100
Steel Creek Park 10140 .0 .0 * .1 .2 50
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Basin Index (%) * 70
UPPER BEAR RIVER
Bear River RS 8510 .0 -M * -M -M *
Bug Lake 7980 .0 .0 * .2 .1 200
Burts Miller Ranch 7900 .1 .0 * .0 .0 *
Chalk Creek #1 9160 .1 .0 * .1 .2 50
Giveout 6940 .0 .0 * .1 .0 *
Hayden Fork 9160 .0 .0 * -M .2 *
Kelley R.S. 8240 .1 .0 * .2 .1 200
Lily Lake 9130 .0 .0 * .0 .2 0
Monte Cristo 8930 .2 .0 * .3 .2 150
Salt River Summit 7630 .0 .0 * .1 .0 *
Spring Creek Divide 9020 .0 .0 * .3 .2 150
Trial Lake 9970 .9 .0 * .0 .2 0
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Basin Index (%) * 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.
