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 18 , 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 * 3.3 1.2 275
Blind Bull Sum 8880 .0 .3 0* 1.6 1.0 160
Cottonwood Creek 7710 .0 .0 * 3.0 1.4 214
East Rim Divide 8010 .0 .0 * 1.7 .6 283
Grand Targhee 9260 1.8 2.4 75* 4.8 2.6 185
Granite Creek 6770 .0 .0 * 2.1 .8 262
Grassy Lake 7330 .0 .0 * 2.8 1.8 156
Gros Ventre Summit 8760 .0 .6 0* -M 1.0 *
Gunsight Pass 9830 .8 .0 * 3.0 1.1 273
Lewis Lake Divide 7880 .1 .0 * 2.9 1.6 181
Loomis Park 8240 .0 .0 * 1.9 .9 211
Phillips Bench 8160 .0 .0 * 2.9 1.3 223
Salt River Summit 7630 .0 .0 * 1.9 .8 238
Snake River Station 6900 .0 .0 * 2.2 1.0 220
Somsen Ranch 6830 .0 .0 * 3.2 .9 356
Spring Creek Divide 9020 .2 .2 100* 2.4 1.0 240
Thumb Divide 7970 .1 .0 * 2.7 1.2 225
Togwotee Pass 9590 .7 1.4 50* 3.6 1.4 257
Triple Peak 8520 .2 .2 100* 2.1 1.2 175
Two Ocean Plateau 9240 1.8 1.8 100* 3.9 1.6 244
Willow Creek 8060 .0 .0 * 4.1 2.0 205
Younts Peak 8340 .3 .2 150* 4.5 1.0 450
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Basin Index (%) 85* 230
MADISON HEADWATERS IN WYOMING
Black Bear 8160 .8 1.2 67* 3.4 2.1 162
Canyon 7870 .2 .1 200* 2.1 1.2 175
Madison Plateau 7710 .1 .4 25* 3.1 1.7 182
West Yellowstone 6680 .1 .0 * 2.3 .8 288
Whiskey Creek 6790 .2 .0 * 3.0 1.2 250
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Basin Index (%) 82* 199
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 1.2 1.2 100* 2.5 1.3 192
Canyon 7870 .2 .1 200* 2.1 1.2 175
Evening Star 9040 .7 1.0 70* 3.6 2.0 180
Fisher Creek 9110 1.6 1.4 114* 4.0 1.8 222
Monument Peak 8740 1.4 1.0 140* 3.8 1.6 238
Northeast Entrance 7420 .1 .0 * 2.7 .8 338
Parker Peak 9420 1.0 1.2 83* 3.1 1.6 194
Sylvan Lake 8440 .2 .6 33* 3.8 1.8 211
Thumb Divide 7970 .1 .0 * 2.7 1.2 225
Two Ocean Plateau 9240 1.8 1.8 100* 3.9 1.6 244
White Mill 8730 1.2 1.1 109* 3.2 1.4 229
Wolverine 7650 .0 .0 * 2.0 1.2 167
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Basin Index (%) 101* 214
WIND RIVER
Burroughs Creek 8760 .0 -M * 3.7 -M *
Castle Creek 8410 .3 .0 * 1.8 .8 225
Cold Springs 9640 .0 .0 * 1.8 .8 225
Deer Park 9690 .7 .3 233* 1.4 1.3 108
Hobbs Park 10080 .0 .8 0* 1.4 1.0 140
Kirwin 9580 .6 .8 75* 3.3 1.2 275
Little Warm 9370 .5 .3 167* 2.7 1.0 270
South Pass 9040 .7 .0 * 1.2 1.1 109
St. Lawrence Alt 8610 .1 -M * 1.1 -M *
Togwotee Pass 9590 .7 1.4 50* 3.6 1.4 257
Townsend Creek 8720 .3 .0 * 1.6 1.0 160
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Basin Index (%) 106* 196
BIGHORN BASIN
Bald Mtn. 9360 1.8 2.0 90* 3.8 1.7 224
Bear Trap Meadow 8200 .8 .2 400* 3.1 1.1 282
Bone Springs Div 9340 .4 1.3 31* 3.0 1.7 176
Grave Springs 8560 .6 .2 300* 3.2 1.0 320
Kirwin 9580 .6 .8 75* 3.3 1.2 275
Marquette 8800 .2 .3 67* 1.8 1.3 138
Middle Powder 7760 .9 .2 450* 3.1 1.2 258
Owl Creek 8990 .0 .2 0* 2.0 1.0 200
Powder River Pass 9480 .9 .7 129* 3.4 1.4 243
Shell Creek 9570 .7 1.8 39 3.1 1.4 221
Timber Creek 7910 .0 .0 * 2.1 1.2 175
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Basin Index (%) 90* 225
SHOSHONE RIVER
Blackwater 9840 1.5 1.5 100* 2.7 1.8 150
Evening Star 9040 .7 1.0 70* 3.6 2.0 180
Marquette 8800 .2 .3 67* 1.8 1.3 138
Sylvan Lake 8440 .2 .6 33* 3.8 1.8 211
Sylvan Road 7140 .1 .0 * 2.7 1.3 208
Younts Peak 8340 .3 .2 150* 4.5 1.0 450
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Basin Index (%) 83* 208
POWDER RIVER
Bear Trap Meadow 8200 .8 .2 400* 3.1 1.1 282
Cloud Peak Reservoir 9830 .1 .9 11* 2.5 1.7 147
Grave Springs 8560 .6 .2 300* 3.2 1.0 320
Hansen Sawmill 8360 .3 .0 * 3.4 1.2 283
Middle Powder 7760 .9 .2 450* 3.1 1.2 258
Powder River Pass 9480 .9 .7 129* 3.4 1.4 243
Soldier Park 8680 .1 .0 * 2.3 1.2 192
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Basin Index (%) 168* 239
TONGUE RIVER
Big Goose 8010 .4 .4 100* 2.3 1.3 177
Bone Springs Div 9340 .4 1.3 31* 3.0 1.7 176
Burgess Junction 7900 .3 .4 75* 2.7 1.3 208
Dome Lake 8890 .3 .7 43* 2.7 1.5 180
Little Goose 8560 .2 .0 * 2.3 1.4 164
Sucker Creek 8840 .3 .8 38* 2.6 1.4 186
Tie Creek 7050 .3 .0 * 2.4 1.1 218
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Basin Index (%) 61* 186
BELLE FOURCHE
Blind Park 6900 .1 .0 * 2.7 1.1 245
Cole Canyon 5930 .0 .0 * 2.9 1.0 290
North Rapid Creek 6150 .2 .0 * 2.0 .9 222
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Basin Index (%) * 253
CHEYENNE RIVER BASIN
Blind Park 6900 .1 .0 * 2.7 1.1 245
North Rapid Creek 6150 .2 .0 * 2.0 .9 222
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Basin Index (%) * 235
UPPER N. PLATTE
Arapaho Ridge 10960 .0 1.0 0* 1.6 1.6 100
Blackhall Mtn 9830 .1 .8 12* 2.5 2.0 125
Cinnabar Park 9670 .0 .3 0* 1.3 1.2 108
Columbine 9170 .4 .0 * 1.0 1.8 56
Divide Peak 8700 .3 .2 150* 2.1 1.6 131
Joe Wright 10140 .2 .4 50* 1.4 2.2 64
Laprele Creek 8370 .1 .0 * 2.7 .9 300
Med Bow 10500 .4 -M * 3.2 -M *
Never Summer 10300 .2 .8 25* .9 1.7 53
North French Creek 10150 .4 .6 67* 2.7 1.8 150
Old Battle 9850 .4 .8 50* 4.3 1.8 239
Rawah 9100 .0 .0 * 1.3 1.6 81
Sage Creek Basin 7830 .1 .0 * 1.6 1.1 145
Sand Lake 10080 .4 1.1 36* 2.6 1.6 162
South Brush Creek 8480 .0 .0 * 1.5 .9 167
Tower 10610 .0 .8 0* 2.0 2.0 100
Webber Springs 9250 .2 .2 100* 3.0 1.6 188
Whiskey Park 8950 .0 .0 * 3.0 1.8 167
Willow Creek Pass 9520 .1 .2 50* 1.1 1.0 110
Zirkel 9320 .1 .0 * 2.0 2.2 91
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Basin Index (%) 42* 127
SWEETWATER
Deer Park 9690 .7 .3 233* 1.4 1.3 108
Larsen Creek 8880 .5 .0 * 1.4 .8 175
South Pass 9040 .7 .0 * 1.2 1.1 109
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Basin Index (%) 633* 125
LOWER N. PLATTE
Casper Mtn. 7940 .2 .2 100* 1.8 1.0 180
Laprele Creek 8370 .1 .0 * 2.7 .9 300
Reno Hill 8410 .0 .4 0* 1.7 1.2 142
Windy Peak 7900 .0 .0 * 2.5 .7 357
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Basin Index (%) 50* 229
LARAMIE RIVER
Brooklyn Lake 10250 .2 .0 * 1.4 1.0 140
Cinnabar Park 9670 .0 .3 0* 1.3 1.2 108
Crow Creek 8320 .0 .0 * 1.3 .8 162
Deadman Hill 10240 .3 1.0 30* .9 1.2 75
Rawah 9100 .0 .0 * 1.3 1.6 81
Roach 9710 .2 .3 67* 1.2 1.1 109
Windy Peak 7900 .0 .0 * 2.5 .7 357
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Basin Index (%) 44* 130
S. PLATTE
Crow Creek 8320 .0 .0 * 1.3 .8 162
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Basin Index (%) * 162
LITTLE SNAKE RIVER
Battle Mountain 7460 .2 .0 * 2.5 1.0 250
Divide Peak 8700 .3 .2 150* 2.1 1.6 131
Elk River 8710 .2 .0 * 3.3 1.4 236
Elkhead Divide 8780 .0 -M * 3.4 -M *
Little Snake River 8930 .0 .0 * 3.2 2.3 139
Old Battle 9850 .4 .8 50* 4.3 1.8 239
Sage Creek Basin 7830 .1 .0 * 1.6 1.1 145
Sandstone RS 8150 .0 .0 * 2.4 1.1 218
Whiskey Park 8950 .0 .0 * 3.0 1.8 167
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Basin Index (%) 120* 185
UPPER GREEN RIVER
Big Sandy Opening 9100 .7 .4 175* 1.1 1.0 110
Blind Bull Sum 8880 .0 .3 0* 1.6 1.0 160
East Rim Divide 8010 .0 .0 * 1.7 .6 283
Elkhart Park G.S. 9410 .0 .0 * 2.1 1.2 175
Gros Ventre Summit 8760 .0 .6 0* -M 1.0 *
Gunsight Pass 9830 .8 .0 * 3.0 1.1 273
Indian Creek 9400 .5 .4 125* 2.8 1.0 280
Kendall R.S. 7790 .1 .0 * 2.4 .8 300
Larsen Creek 8880 .5 .0 * 1.4 .8 175
Loomis Park 8240 .0 .0 * 1.9 .9 211
New Fork Lake 8380 .0 .0 * -M .7 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 .0 .0 * 1.1 .6 183
Spring Creek Divide 9020 .2 .2 100* 2.4 1.0 240
Triple Peak 8520 .2 .2 100* 2.1 1.2 175
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Basin Index (%) 143* 211
LOWER GREEN RIVER
Blacks Fork Jct 8880 .9 -M * 1.7 -M *
Buck Pasture 9620 .7 -M * 2.6 -M *
EF Blacks Fork GS 9360 1.1 -M * 2.0 -M *
Hams Fork 7870 .0 .0 * 1.3 .6 217
Henrys Fork 10180 -M -M * 2.9 -M *
Hewinta 9510 1.0 .0 * 2.2 1.0 220
Hickerson Park 9130 .8 .0 * 2.3 .7 329
Hole-in-Rock 9170 .8 .0 * 2.8 .9 311
Indian Creek 9400 .5 .4 125* 2.8 1.0 280
Kelley R.S. 8240 .1 .0 * 2.7 .7 386
Spirit Lk 10240 .6 .0 * 4.2 1.1 382
Steel Creek Park 10140 1.3 .4 325* 2.7 1.0 270
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Basin Index (%) 638* 300
UPPER BEAR RIVER
Bear River RS 8510 .0 -M * 1.7 -M *
Bug Lake 7980 .0 .0 * 2.7 .7 386
Burts Miller Ranch 7900 .3 .0 * 1.8 .6 300
Chalk Creek #1 9160 1.2 .0 * 3.4 1.3 262
Giveout 6940 .0 .0 * 1.9 .8 238
Hayden Fork 9160 .0 .0 * 2.3 1.2 192
Kelley R.S. 8240 .1 .0 * 2.7 .7 386
Lily Lake 9130 .5 .0 * 2.1 1.1 191
Monte Cristo 8930 .7 .0 * 3.9 1.1 355
Salt River Summit 7630 .0 .0 * 1.9 .8 238
Spring Creek Divide 9020 .2 .2 100* 2.4 1.0 240
Trial Lake 9970 1.2 .0 * 2.3 1.2 192
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Basin Index (%) 2100* 261
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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.