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 THURSDAY: OCTOBER 9 , 2025
------------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Median Med
------------------------------------------------------------------------------
WYOMING
SNAKE RIVER
Base Camp 7040 .0 .0 * 1.8 .6 300
Blind Bull Sum 8880 .0 .0 * 1.0 .6 167
Cottonwood Creek 7710 .0 .0 * 1.4 .6 233
East Rim Divide 8010 .0 .0 * 1.1 .3 367
Grand Targhee 9260 .1 1.0 10* 1.9 1.4 136
Granite Creek 6770 .0 .0 * 1.0 .5 200
Grassy Lake 7330 .0 .0 * .5 .8 62
Gros Ventre Summit 8760 .0 .0 * -M .6 *
Gunsight Pass 9830 .5 .0 * 1.4 .8 175
Lewis Lake Divide 7880 .0 .0 * .7 .6 117
Loomis Park 8240 .0 .0 * .7 .4 175
Phillips Bench 8160 .0 .0 * 1.1 .5 220
Salt River Summit 7630 .0 .0 * 1.0 .4 250
Snake River Station 6900 .0 .0 * .6 .6 100
Somsen Ranch 6830 .0 .0 * 2.0 .5 400
Spring Creek Divide 9020 .0 .0 * 1.1 .5 220
Thumb Divide 7970 .1 .0 * 1.2 .6 200
Togwotee Pass 9590 .0 .0 * 1.8 .7 257
Triple Peak 8520 .1 .0 * 1.1 .6 183
Two Ocean Plateau 9240 .6 .6 100* 1.8 1.0 180
Willow Creek 8060 .0 .0 * 1.8 1.0 180
Younts Peak 8340 .6 .0 * 3.0 .6 500
----- -----
Basin Index (%) 125* 206
MADISON HEADWATERS IN WYOMING
Black Bear 8160 .1 .2 50* .4 .8 50
Canyon 7870 .0 .0 * .7 .5 140
Madison Plateau 7710 .0 .0 * .7 .6 117
West Yellowstone 6680 .0 .0 * .6 .4 150
Whiskey Creek 6790 .1 .0 * .6 .4 150
----- -----
Basin Index (%) 100* 111
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 .4 .6 67* .9 .6 150
Canyon 7870 .0 .0 * .7 .5 140
Evening Star 9040 .0 .4 0* 1.6 1.0 160
Fisher Creek 9110 .4 .0 * 1.0 .8 125
Monument Peak 8740 .7 .2 350* 1.4 .8 175
Northeast Entrance 7420 .0 .0 * .9 .4 225
Parker Peak 9420 .0 .5 0* 1.1 .8 138
Sylvan Lake 8440 .0 .0 * 1.2 1.0 120
Thumb Divide 7970 .1 .0 * 1.2 .6 200
Two Ocean Plateau 9240 .6 .6 100* 1.8 1.0 180
White Mill 8730 .2 .0 * .9 .6 150
Wolverine 7650 .0 .0 * .8 .5 160
----- -----
Basin Index (%) 104* 157
WIND RIVER
Burroughs Creek 8760 .0 -M * -M -M *
Castle Creek 8410 .2 .0 * 1.1 .5 220
Cold Springs 9640 .3 .0 * 1.2 .4 300
Deer Park 9690 .1 .0 * .4 .6 67
Hobbs Park 10080 .4 .4 100* .9 .6 150
Kirwin 9580 .8 .2 400* 2.0 .8 250
Little Warm 9370 .4 .0 * 1.7 .6 283
South Pass 9040 .2 .0 * .4 .7 57
St. Lawrence Alt 8610 .0 -M * 1.0 -M *
Togwotee Pass 9590 .0 .0 * 1.8 .7 257
Townsend Creek 8720 .1 .0 * .8 .7 114
----- -----
Basin Index (%) 417* 184
BIGHORN BASIN
Bald Mtn. 9360 1.7 1.1 155* 2.8 .7 400
Bear Trap Meadow 8200 .2 .0 * 1.1 .6 183
Bone Springs Div 9340 .8 .6 133* 1.7 .8 212
Grave Springs 8560 .1 .2 50* .9 .5 180
Kirwin 9580 .8 .2 400* 2.0 .8 250
Marquette 8800 .2 .2 100* 1.2 .7 171
Middle Powder 7760 .3 .2 150* 1.1 .6 183
Owl Creek 8990 1.0 .2 500* 1.9 .4 475
Powder River Pass 9480 .1 .2 50* 1.0 .7 143
Shell Creek 9570 1.1 1.0 110* 1.7 .9 189
Timber Creek 7910 .4 .0 * 1.7 .8 212
----- -----
Basin Index (%) 172* 228
SHOSHONE RIVER
Blackwater 9840 1.2 .6 200* 1.5 1.0 150
Evening Star 9040 .0 .4 0* 1.6 1.0 160
Marquette 8800 .2 .2 100* 1.2 .7 171
Sylvan Lake 8440 .0 .0 * 1.2 1.0 120
Sylvan Road 7140 .0 .0 * .9 .6 150
Younts Peak 8340 .6 .0 * 3.0 .6 500
----- -----
Basin Index (%) 167* 192
POWDER RIVER
Bear Trap Meadow 8200 .2 .0 * 1.1 .6 183
Cloud Peak Reservoir 9830 .0 .0 * 1.1 .8 138
Grave Springs 8560 .1 .2 50* .9 .5 180
Hansen Sawmill 8360 .0 .0 * 1.7 .8 212
Middle Powder 7760 .3 .2 150* 1.1 .6 183
Powder River Pass 9480 .1 .2 50* 1.0 .7 143
Soldier Park 8680 .3 .2 150* 1.5 .8 188
----- -----
Basin Index (%) 125* 175
TONGUE RIVER
Big Goose 8010 .3 .0 * 1.6 .8 200
Bone Springs Div 9340 .8 .6 133* 1.7 .8 212
Burgess Junction 7900 .5 .3 167* 1.5 .7 214
Dome Lake 8890 .8 .4 200* 1.7 .9 189
Little Goose 8560 .4 .3 133* 1.5 1.0 150
Sucker Creek 8840 .6 .2 300* 1.5 .6 250
Tie Creek 7050 .1 .0 * 1.6 .7 229
----- -----
Basin Index (%) 194* 202
BELLE FOURCHE
Blind Park 6900 .0 .0 * .8 .6 133
Cole Canyon 5930 .0 .0 * 1.4 .4 350
North Rapid Creek 6150 .1 .0 * .5 .4 125
----- -----
Basin Index (%) * 193
CHEYENNE RIVER BASIN
Blind Park 6900 .0 .0 * .8 .6 133
North Rapid Creek 6150 .1 .0 * .5 .4 125
----- -----
Basin Index (%) * 130
UPPER N. PLATTE
Arapaho Ridge 10960 .0 .2 0* .4 .6 67
Blackhall Mtn 9830 .1 .0 * .8 1.0 80
Cinnabar Park 9670 .0 .0 * .4 .6 67
Columbine 9170 .3 .0 * .2 .7 29
Divide Peak 8700 .3 .0 * .8 .8 100
Joe Wright 10140 .1 .0 * .2 .8 25
Laprele Creek 8370 .1 .0 * 1.8 .4 450
Med Bow 10500 .3 -M * 1.5 -M *
Never Summer 10300 .2 .4 50* .2 .7 29
North French Creek 10150 .1 .0 * 1.2 .6 200
Old Battle 9850 .1 .0 * 1.6 .8 200
Rawah 9100 .0 .0 * .4 .8 50
Sage Creek Basin 7830 .1 .0 * .5 .5 100
Sand Lake 10080 .4 .1 400* 1.4 .6 233
South Brush Creek 8480 .0 .0 * .5 .4 125
Tower 10610 .0 .2 0* .4 .8 50
Webber Springs 9250 .2 .0 * 1.3 .8 162
Whiskey Park 8950 .0 .0 * .8 .9 89
Willow Creek Pass 9520 .1 .0 * .3 .4 75
Zirkel 9320 .0 .0 * .7 .7 100
----- -----
Basin Index (%) 233* 108
SWEETWATER
Deer Park 9690 .1 .0 * .4 .6 67
Larsen Creek 8880 .4 .0 * .5 .7 71
South Pass 9040 .2 .0 * .4 .7 57
----- -----
Basin Index (%) * 65
LOWER N. PLATTE
Casper Mtn. 7940 .2 .0 * 1.1 .4 275
Laprele Creek 8370 .1 .0 * 1.8 .4 450
Reno Hill 8410 .0 .1 0* 1.2 .6 200
Windy Peak 7900 .0 .0 * 1.3 .4 325
----- -----
Basin Index (%) 300* 300
LARAMIE RIVER
Brooklyn Lake 10250 .1 .0 * .6 .4 150
Cinnabar Park 9670 .0 .0 * .4 .6 67
Crow Creek 8320 .1 .0 * 1.0 .3 333
Deadman Hill 10240 .2 .2 100* .4 .6 67
Rawah 9100 .0 .0 * .4 .8 50
Roach 9710 .1 .0 * .3 .5 60
Windy Peak 7900 .0 .0 * 1.3 .4 325
----- -----
Basin Index (%) 250* 122
S. PLATTE
Crow Creek 8320 .1 .0 * 1.0 .3 333
----- -----
Basin Index (%) * 333
LITTLE SNAKE RIVER
Battle Mountain 7460 .2 .0 * .9 .6 150
Divide Peak 8700 .3 .0 * .8 .8 100
Elk River 8710 .2 .0 * .8 .6 133
Elkhead Divide 8780 .0 -M * .8 -M *
Little Snake River 8930 .0 .0 * .6 1.1 55
Old Battle 9850 .1 .0 * 1.6 .8 200
Sage Creek Basin 7830 .1 .0 * .5 .5 100
Sandstone RS 8150 .0 .0 * .7 .6 117
Whiskey Park 8950 .0 .0 * .8 .9 89
----- -----
Basin Index (%) * 114
UPPER GREEN RIVER
Big Sandy Opening 9100 .8 .0 * .6 .6 100
Blind Bull Sum 8880 .0 .0 * 1.0 .6 167
East Rim Divide 8010 .0 .0 * 1.1 .3 367
Elkhart Park G.S. 9410 .4 .0 * 1.2 .7 171
Gros Ventre Summit 8760 .0 .0 * -M .6 *
Gunsight Pass 9830 .5 .0 * 1.4 .8 175
Indian Creek 9400 .9 .0 * 1.6 .3 533
Kendall R.S. 7790 .0 .0 * .9 .4 225
Larsen Creek 8880 .4 .0 * .5 .7 71
Loomis Park 8240 .0 .0 * .7 .4 175
New Fork Lake 8380 .0 .0 * -M .3 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 .0 .0 * .3 .4 75
Spring Creek Divide 9020 .0 .0 * 1.1 .5 220
Triple Peak 8520 .1 .0 * 1.1 .6 183
----- -----
Basin Index (%) * 183
LOWER GREEN RIVER
Blacks Fork Jct 8880 .2 -M * .4 -M *
Buck Pasture 9620 .0 -M * .6 -M *
EF Blacks Fork GS 9360 .1 -M * .2 -M *
Hams Fork 7870 .0 .0 * .6 .2 300
Henrys Fork 10180 -M -M * .0 -M *
Hewinta 9510 .0 .0 * .2 .5 40
Hickerson Park 9130 .0 .0 * .6 .5 120
Hole-in-Rock 9170 .0 .0 * .4 .5 80
Indian Creek 9400 .9 .0 * 1.6 .3 533
Kelley R.S. 8240 .0 .0 * 1.2 .4 300
Spirit Lk 10240 .0 .0 * 1.2 .8 150
Steel Creek Park 10140 .0 .0 * .4 .6 67
----- -----
Basin Index (%) * 163
UPPER BEAR RIVER
Bear River RS 8510 .0 -M * .3 -M *
Bug Lake 7980 .0 .0 * 1.2 .5 240
Burts Miller Ranch 7900 .1 .0 * .3 .3 100
Chalk Creek #1 9160 .2 .0 * .9 .8 112
Giveout 6940 .0 .0 * .8 .4 200
Hayden Fork 9160 .0 .0 * .4 .6 67
Kelley R.S. 8240 .0 .0 * 1.2 .4 300
Lily Lake 9130 .0 .0 * .3 .4 75
Monte Cristo 8930 .2 .0 * 1.6 .6 267
Salt River Summit 7630 .0 .0 * 1.0 .4 250
Spring Creek Divide 9020 .0 .0 * 1.1 .5 220
Trial Lake 9970 .8 .0 * .7 .7 100
----- -----
Basin Index (%) * 170
----------------------------------------------------------------------------
-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.