Idaho SNOTEL Snow/Precipitation Update Report

Idaho SNOTEL Snow/Precipitation Update Report

Based on Mountain Data from NRCS SNOTEL Sites

**Provisional data, subject to revision**

Data based on the first reading of the day (typically 00:00) for Thursday, September 18, 2025

Basin Site Name	Elev (ft)	Snow Water Equivalent			Water Year-to-Date Precipitation
Basin Site Name	Elev (ft)	Current (in)	Median (in)	Pct of Median	Current (in)	Median (in)	Pct of Median
NORTHERN PANHANDLE REGION
Bear Mountain	5460	0.0	0.0	*	71.7	90.8	79
Bunchgrass Mdw	5020	0.0	0.0	*	43.3	52.8	82
Garver Creek	4250	0.1	0.0	*	25.0	26.7₍₂₄₎	94
Hawkins Lake	6460	0.0	0.0	*	45.4	45.2	100
Hidden Lake	5000	0.1	0.0₍₂₀₎	*	57.6	74.0₍₂₀₎	78
Mosquito Ridge	5270	0.0	0.0	*	43.4	56.9	76
Moyie Mountain	6037	-M	0.0₍₂₂₎	*	-M	N/A	*
Myrtle Creek	3540	0.0	0.0₍₁₇₎	*	25.8	29.3₍₁₇₎	88
Quartz Peak	4710	0.0	0.0	*	43.2	47.8	90
Schweitzer Basin	6090	0.0	0.0	*	49.9	53.4	93
Basin Index (%)		*			85
COEUR D'ALENE-ST. JOE RIVER BASIN
Humboldt Gulch	4260	0.0	0.0	*	34.7	51.6	67
Lookout	5180	0.0	0.0	*	35.7	48.6	73
Lost Lake	6090	0.0	0.0	*	65.1	76.1	86
Mica Creek	4480	0.1	0.0	*	42.2	53.6	79
Mosquito Ridge	5270	0.0	0.0	*	43.4	56.9	76
Sherwin	3190	0.1	0.0	*	29.4	38.6₍₂₉₎	76
Sunset	5580	0.0	0.0	*	33.7	50.0	67
Basin Index (%)		*			76
CLEARWATER BASIN
Cool Creek	6310	0.1	0.0	*	57.3	68.9	83
Crater Meadows	5960	0.0	0.0	*	60.5	70.4	86
Elk Butte	5680	0.1	0.0	*	40.8	55.8	73
Hemlock Butte	5800	0.1	0.0	*	45.0	N/A	*
Hoodoo Basin	6060	0.0	0.0	*	56.9	60.8	94
Lolo Pass	5280	0.0	0.0	*	39.1	45.8	85
Lost Lake	6090	0.0	0.0	*	65.1	76.1	86
Moscow Mountain	4700	0.0	0.0₍₂₀₎	*	37.2	43.8₍₂₀₎	85
Mountain Meadows	6340	0.0	0.0	*	41.9	43.6	96
Nez Perce Camp	5670	0.0	0.0	*	27.6	32.4	85
Pierce R.S.	3080	0.0	0.0₍₁₁₎	*	36.3	42.9₍₁₁₎	85
Savage Pass	6170	0.5	0.0	*	37.2	46.3	80
Shanghi Summit	4590	0.0	0.0	*	45.7	56.6	81
Sherwin	3190	0.1	0.0	*	29.4	38.6₍₂₉₎	76
Twelvemile Creek	5530	0.0	0.0	*	41.6	46.1	90
Twin Lakes	6390	0.0	0.0	*	56.2	64.0	88
Basin Index (%)		*			85
SALMON BASIN
Banner Summit	7040	0.0	0.0	*	37.8	41.4	91
Bear Basin	5350	0.2	0.0	*	33.7	34.2	99
Big Creek Summit	6560	0.0	0.0	*	38.6	44.6	87
Brundage Reservoir	6280	0.1	0.0	*	48.5	50.4	96
Deadwood Summit	6990	0.4	0.0	*	53.4	53.5	100
Galena	7470	0.0	0.0	*	23.8	24.8	96
Galena Summit	8780	0.0	0.0	*	27.5	28.2	98
Lemhi Ridge	8080	0.0	0.0	*	23.0	24.2	95
Meadow Lake	9190	0.2	0.0	*	26.1	29.8	88
Mill Creek Summit	8790	0.1	0.0	*	26.5	27.6	96
Moonshine	7490	0.0	0.0	*	18.0	20.5	88
Moose Creek	6170	0.0	0.0	*	27.3	30.1	91
Morgan Creek	7620	0.1	0.0	*	22.6	22.7	100
Mountain Meadows	6340	0.0	0.0	*	41.9	43.6	96
Saddle Mtn.	7890	0.0	0.0	*	27.8	34.9	80
Schwartz Lake	8620	0.0	0.0₍₂₅₎	*	25.3	24.7₍₂₅₎	102
Secesh Summit	6520	0.0	0.0	*	48.5	39.6	122
Puhi Flat	6240	0.1	0.0	*	42.3	43.6	97
Vienna Mine	8930	0.2	0.0	*	38.6	41.3	93
West Branch	5590	0.0	0.0	*	43.2	41.0	105
Basin Index (%)		*			96
WEISER BASIN
Bear Saddle	6170	0.0	0.0	*	35.3	32.8	108
Puhi Flat	6240	0.1	0.0	*	42.3	43.6	97
Van Wyck	4960	0.0	0.0₍₁₉₎	*	20.7	24.3₍₁₉₎	85
West Branch	5590	0.0	0.0	*	43.2	41.0	105
Basin Index (%)		*			100
PAYETTE BASIN
Banner Summit	7040	0.0	0.0	*	37.8	41.4	91
Bear Basin	5350	0.2	0.0	*	33.7	34.2	99
Big Creek Summit	6560	0.0	0.0	*	38.6	44.6	87
Bogus Basin	6370	0.0	0.0₍₂₁₎	*	36.4	29.2₍₂₁₎	125
Brundage Reservoir	6280	0.1	0.0	*	48.5	50.4	96
Cozy Cove	5410	-M	0.0	*	-M	31.4	*
Deadwood Summit	6990	0.4	0.0	*	53.4	53.5	100
Jackson Peak	7060	0.6	0.0	*	44.2	43.7	101
Long Valley	4890	0.0	0.0₍₁₉₎	*	24.2	23.5₍₁₉₎	103
Secesh Summit	6520	0.0	0.0	*	48.5	39.6	122
Puhi Flat	6240	0.1	0.0	*	42.3	43.6	97
Van Wyck	4960	0.0	0.0₍₁₉₎	*	20.7	24.3₍₁₉₎	85
Basin Index (%)		*			100
BOISE BASIN
Atlanta Summit	7570	0.0	0.0	*	39.0	43.0	91
Bogus Basin	6370	0.0	0.0₍₂₁₎	*	36.4	29.2₍₂₁₎	125
Camas Creek Divide	5720	0.0	0.0₍₂₉₎	*	22.1	22.8₍₂₈₎	97
Couch Summit	6770	0.1	N/A	*	23.7	N/A	*
Dollarhide Summit	8390	0.0	0.0	*	22.9	32.2	71
Graham Guard Sta.	5680	0.0	0.0	*	29.3	29.4	100
Jackson Peak	7060	0.6	0.0	*	44.2	43.7	101
Mores Creek Summit	6090	0.0	0.0	*	46.6	44.0	106
Prairie	4800	0.2	0.0	*	23.1	20.6	112
Trinity Mtn.	7790	0.0	0.0	*	45.5	46.0	99
Vienna Mine	8930	0.2	0.0	*	38.6	41.3	93
Basin Index (%)		*			99
BIG WOOD BASIN
Camas Creek Divide	5720	0.0	0.0₍₂₉₎	*	22.1	22.8₍₂₈₎	97
Chocolate Gulch	6310	0.4	0.0₍₂₈₎	*	17.5	20.7₍₂₇₎	85
Couch Summit	6770	0.1	N/A	*	23.7	N/A	*
Dollarhide Summit	8390	0.0	0.0	*	22.9	32.2	71
Galena	7470	0.0	0.0	*	23.8	24.8	96
Galena Summit	8780	0.0	0.0	*	27.5	28.2	98
Hyndman	7590	0.0	0.0	*	18.2	23.8	76
Lost-Wood Divide	7870	0.1	0.0	*	24.6	27.6	89
Soldier R.S.	5780	0.0	0.0	*	19.4	22.2	87
Basin Index (%)		*			87
LITTLE WOOD BASIN
Bear Canyon	7920	0.0	0.0	*	20.7	26.0	80
Fish Ck	6380	-M	N/A	*	17.3	N/A	*
Garfield R.S.	6580	0.0	0.0	*	12.9	19.3	67
Smiley Mountain	9540	0.0	0.0₍₁₉₎	*	22.9	30.9₍₁₉₎	74
Swede Peak	7640	0.0	0.0	*	18.1	24.2	75
Basin Index (%)		*			74
BIG LOST BASIN
Bear Canyon	7920	0.0	0.0	*	20.7	26.0	80
Hilts Creek	8090	0.0	0.0	*	17.6	21.2	83
Lost-Wood Divide	7870	0.1	0.0	*	24.6	27.6	89
Smiley Mountain	9540	0.0	0.0₍₁₉₎	*	22.9	30.9₍₁₉₎	74
Stickney Mill	7440	0.0	0.0	*	15.1	18.4	82
Basin Index (%)		*			81
LITTLE LOST
Hilts Creek	8090	0.0	0.0	*	17.6	21.2	83
Meadow Lake	9190	0.2	0.0	*	26.1	29.8	88
Moonshine	7490	0.0	0.0	*	18.0	20.5	88
Basin Index (%)		*			86
BIRCH, MEDICINE LODGE, BEAVER, CAMAS BASINS
Beagle Springs	8880	0.1	0.0	*	19.9	22.4	89
Crab Creek	6870	0.0	0.0	*	21.0	25.4	83
Lakeview Ridge	7340	0.0	0.0	*	21.9	25.1	87
Meadow Lake	9190	0.2	0.0	*	26.1	29.8	88
Basin Index (%)		*			87
HENRYS FORK, TETON BASINS
Black Bear	8160	0.0	0.0	*	-M	53.6	*
Grand Targhee	9260	0.0	0.0₍₁₄₎	*	42.3	50.2₍₁₄₎	84
Grassy Lake	7330	0.0	0.0	*	43.1	50.2	86
Island Park	6300	0.0	0.0	*	24.1	27.6	87
Lewis Lake Divide	7880	0.0	0.0	*	43.8	48.0	91
Phillips Bench	8160	0.0	0.0	*	35.8	39.8	90
Pine Creek Pass	6710	0.0	0.0	*	30.8	32.9	94
White Elephant	7670	0.0	0.0	*	36.8	44.4	83
Basin Index (%)		*			88
SNAKE BASIN ABOVE PALISADES
Base Camp	7040	0.0	0.0	*	28.2	31.6	89
Blind Bull Sum	8880	0.0	0.0	*	23.7	28.6	83
Cottonwood Creek	7710	0.0	0.0	*	37.0	38.6	96
East Rim Divide	8010	0.0	0.0	*	17.8	19.0	94
Granite Creek	6770	0.0	0.0	*	25.0	29.8	84
Grassy Lake	7330	0.0	0.0	*	43.1	50.2	86
Gros Ventre Summit	8760	0.0	0.0	*	-M	21.4	*
Gunsight Pass	9830	0.4	0.0₍₂₂₎	*	20.8	24.4₍₂₂₎	85
Lewis Lake Divide	7880	0.0	0.0	*	43.8	48.0	91
Loomis Park	8240	0.0	0.0	*	24.5	27.3	90
Phillips Bench	8160	0.0	0.0	*	35.8	39.8	90
Salt River Summit	7630	0.0	0.0	*	18.4	25.6	72
Snake River Station	6900	0.0	0.0	*	29.5	34.3	86
Somsen Ranch	6830	0.0	0.0	*	21.8	25.6	85
Spring Creek Divide	9020	0.0	0.0	*	32.0	35.1	91
Thumb Divide	7970	0.0	0.0	*	23.8	28.6	83
Togwotee Pass	9590	0.0	0.0	*	37.0	37.0	100
Triple Peak	8520	0.0	0.0	*	35.0	38.3	91
Two Ocean Plateau	9240	0.0	0.0	*	37.0	40.8	91
Willow Creek	8060	0.0	0.0	*	47.5	50.8	94
Younts Peak	8340	0.0	0.0₍₂₉₎	*	22.2	27.0₍₂₈₎	82
Basin Index (%)		*			89
WILLOW, BLACKFOOT, PORTNEUF BASINS
Oxford Spring	6790	0.0	0.0₍₂₉₎	*	22.4	25.7	87
Pebble Creek	6520	0.5	N/A	*	30.8	N/A	*
Sedgwick Peak	7800	0.0	0.0	*	28.4	31.6	90
Sheep Mtn.	6630	0.0	0.0	*	20.9	24.2	86
Slug Creek Divide	7240	0.0	0.0	*	29.2	32.2	91
Somsen Ranch	6830	0.0	0.0	*	21.8	25.6	85
Wildhorse Divide	6480	0.0	0.0	*	30.7	27.8	110
Basin Index (%)		*			92
SNAKE BASIN ABOVE AMERICAN FALLS
Base Camp	7040	0.0	0.0	*	28.2	31.6	89
Black Bear	8160	0.0	0.0	*	-M	53.6	*
Blind Bull Sum	8880	0.0	0.0	*	23.7	28.6	83
Cottonwood Creek	7710	0.0	0.0	*	37.0	38.6	96
East Rim Divide	8010	0.0	0.0	*	17.8	19.0	94
Grand Targhee	9260	0.0	0.0₍₁₄₎	*	42.3	50.2₍₁₄₎	84
Granite Creek	6770	0.0	0.0	*	25.0	29.8	84
Grassy Lake	7330	0.0	0.0	*	43.1	50.2	86
Gros Ventre Summit	8760	0.0	0.0	*	-M	21.4	*
Gunsight Pass	9830	0.4	0.0₍₂₂₎	*	20.8	24.4₍₂₂₎	85
Island Park	6300	0.0	0.0	*	24.1	27.6	87
Lewis Lake Divide	7880	0.0	0.0	*	43.8	48.0	91
Loomis Park	8240	0.0	0.0	*	24.5	27.3	90
Oxford Spring	6790	0.0	0.0₍₂₉₎	*	22.4	25.7	87
Phillips Bench	8160	0.0	0.0	*	35.8	39.8	90
Pine Creek Pass	6710	0.0	0.0	*	30.8	32.9	94
Salt River Summit	7630	0.0	0.0	*	18.4	25.6	72
Sedgwick Peak	7800	0.0	0.0	*	28.4	31.6	90
Sheep Mtn.	6630	0.0	0.0	*	20.9	24.2	86
Slug Creek Divide	7240	0.0	0.0	*	29.2	32.2	91
Snake River Station	6900	0.0	0.0	*	29.5	34.3	86
Somsen Ranch	6830	0.0	0.0	*	21.8	25.6	85
Spring Creek Divide	9020	0.0	0.0	*	32.0	35.1	91
Thumb Divide	7970	0.0	0.0	*	23.8	28.6	83
Togwotee Pass	9590	0.0	0.0	*	37.0	37.0	100
Two Ocean Plateau	9240	0.0	0.0	*	37.0	40.8	91
White Elephant	7670	0.0	0.0	*	36.8	44.4	83
Wildhorse Divide	6480	0.0	0.0	*	30.7	27.8	110
Willow Creek	8060	0.0	0.0	*	47.5	50.8	94
Basin Index (%)		*			89
RAFT BASIN
George Creek	8960	0.0	0.0₍₁₁₎	*	27.3	32.0₍₁₀₎	85
Howell Canyon	8010	0.0	0.0	*	35.3	39.6₍₂₉₎	89
Basin Index (%)		*			87
GOOSE CREEK BASIN
Bostetter R.S.	7530	0.0	0.0	*	26.1	27.6	95
Magic Mountain	6940	0.1	0.0	*	27.2	31.8	86
Basin Index (%)		*			90
SALMON FALLS BASIN
Bostetter R.S.	7530	0.0	0.0	*	26.1	27.6	95
Jakes Creek	7380	-M	N/A	*	18.4	N/A	*
Magic Mountain	6940	0.1	0.0	*	27.2	31.8	86
ONeil Creek	6490	0.1	N/A	*	11.9	N/A	*
Pole Creek R.S.	8360	0.1	0.0	*	18.5	20.6	90
Wilson Creek	7110	0.0	0.0	*	22.6	27.2	83
Basin Index (%)		*			88
BRUNEAU BASIN
Bear Creek	8090	0.0	0.0	*	30.0	33.7	89
Big Bend	6890	0.0	0.0	*	17.2	17.2	100
Merritt Mountain	6920	-M	N/A	*	15.2	N/A	*
ONeil Creek	6490	0.1	N/A	*	11.9	N/A	*
Pole Creek R.S.	8360	0.1	0.0	*	18.5	20.6	90
Seventysix Creek	7360	0.0	0.0	*	19.4	21.0	92
Stag Mountain	7640	-M	N/A	*	9.9	N/A	*
Wilson Creek	7110	0.0	0.0	*	22.6	27.2	83
Basin Index (%)		*			90
OWYHEE BASIN
Big Bend	6890	0.0	0.0	*	17.2	17.2	100
Columbia Basin	6480	-M	N/A	*	21.2	N/A	*
Fawn Creek	7040	-M	0.0	*	27.4	32.0	86
Fry Canyon	6790	-M	N/A	*	20.6	N/A	*
Jack Creek Upper	7380	0.0	0.0	*	24.6	27.2	90
Jacks Peak	8440	-M	N/A	*	29.9	33.0	91
Laurel Draw	6680	0.0	0.0	*	25.6	25.1	102
Merritt Mountain	6920	-M	N/A	*	15.2	N/A	*
Mud Flat	5750	0.1	0.0	*	16.2	16.2	100
South Mtn.	6650	0.0	0.0	*	34.9	31.7	110
Taylor Canyon	6320	0.1	0.0	*	9.8	12.6	78
Toe Jam	7700	0.1	0.0₍₁₁₎	*	25.6	25.5₍₁₁₎	100
Basin Index (%)		*			96
BEAR RIVER BASIN
Bear River RS	8510	0.0	0.0₍₁₀₎	*	16.9	20.7₍₁₀₎	82
Bug Lake	7980	0.0	0.0	*	24.3	26.8	91
Burts Miller Ranch	7900	0.0	0.0₍₁₂₎	*	16.2	13.0₍₁₁₎	125
Chalk Creek #1	9160	0.0	0.0	*	28.4	35.2	81
Emigrant Summit	7390	0.0	0.0	*	34.1	36.4	94
Franklin Basin	8140	0.0	0.0	*	38.4	41.6	92
Garden City Summit	7680	0.0	0.0₍₁₂₎	*	24.4	27.2₍₁₁₎	90
Giveout	6940	0.0	0.0	*	16.8	21.0	80
Hayden Fork	9160	0.0	0.0	*	25.7	33.8	76
Kelley R.S.	8240	0.0	0.0	*	22.7	26.2	87
Klondike Narrows	7280	0.0	0.0₍₁₂₎	*	33.4	33.2₍₁₁₎	101
Lily Lake	9130	0.0	0.0	*	19.0	27.2	70
Monte Cristo	8930	0.0	0.0	*	30.8	36.4	85
Oxford Spring	6790	0.0	0.0₍₂₉₎	*	22.4	25.7	87
Salt River Summit	7630	0.0	0.0	*	18.4	25.6	72
Sedgwick Peak	7800	0.0	0.0	*	28.4	31.6	90
Slug Creek Divide	7240	0.0	0.0	*	29.2	32.2	91
Spring Creek Divide	9020	0.0	0.0	*	32.0	35.1	91
Tony Grove Lake	8450	0.0	0.0	*	42.2	45.6	93
Trial Lake	9970	0.8	0.0	*	31.0	35.0	89
Usu Doc Daniel	8610	0.0	0.0₍₁₄₎	*	33.9	37.0₍₁₃₎	92
Basin Index (%)		*			88

-M = Missing data.
* = Analysis may not provide a valid measure of conditions.
N/A = Not available.

Footnotes for median and average:
(##) = If less than 30 years are available, this value specifies the number of years used for the median and average calculations.
Sites with less than 10 years available do not have medians or averages.

If the Basin Index (%) percent 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 represents the depth of water in the snowpack, if the
snowpack were melted, expressed in inches.

The WATER YEAR-TO-DATE-PRECIPITATION represents total precipitation since October 1st, expressed in inches.

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 normals 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.