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 Tuesday, May 20, 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	41.7	47.4₍₂₉₎	88	65.6	78.6	83
Bunchgrass Mdw	5020	13.1	16.6	79	38.7	41.4	93
Garver Creek	4250	0.2	0.0	*	17.1	20.9₍₂₄₎	82
Hawkins Lake	6460	11.4	16.4	70	34.8	35.9	97
Hidden Lake	5000	15.0	18.6₍₂₀₎	81	50.4	63.3₍₂₀₎	80
Mosquito Ridge	5270	10.4	18.2₍₂₉₎	57	41.4	48.3	86
Moyie Mountain	6037	-M	1.8₍₂₂₎	*	-M	N/A	*
Myrtle Creek	3540	0.2	0.0₍₁₇₎	*	21.8	23.2₍₁₇₎	94
Quartz Peak	4710	0.0	0.0	*	41.5	39.4	105
Schweitzer Basin	6090	41.7	38.8	107	45.4	45.6	100
Basin Index (%)		86			90
COEUR D'ALENE-ST. JOE RIVER BASIN
Humboldt Gulch	4260	0.0	0.0	*	32.2	42.2	76
Lookout	5180	0.2	8.4	2	32.7	42.4	77
Lost Lake	6090	36.0	44.0	82	58.7	65.7	89
Mica Creek	4480	0.0	0.0	*	39.8	43.8	91
Mosquito Ridge	5270	10.4	18.2₍₂₉₎	57	41.4	48.3	86
Sherwin	3190	0.1	0.0	*	27.7	32.2₍₂₉₎	86
Sunset	5580	0.0	10.6	0	28.9	40.1	72
Basin Index (%)		58			83
CLEARWATER BASIN
Cool Creek	6310	36.6	41.2	89	51.3	60.2	85
Crater Meadows	5960	27.7	30.4	91	55.8	60.2	93
Elk Butte	5680	8.1	18.2	45	39.4	48.8	81
Hemlock Butte	5800	22.6	28.1	80	40.4	N/A	*
Hoodoo Basin	6060	29.6	34.8	85	47.4	51.6	92
Lolo Pass	5280	0.0	6.4	0	34.8	39.0	89
Lost Lake	6090	36.0	44.0	82	58.7	65.7	89
Moscow Mountain	4700	0.0	0.0₍₂₀₎	*	34.7	37.6₍₂₀₎	92
Mountain Meadows	6340	9.9	9.9	100	36.3	35.6	102
Nez Perce Camp	5670	0.0	0.0	*	22.2	24.8	90
Pierce R.S.	3080	0.0	0.0₍₁₁₎	*	31.6	36.7₍₁₁₎	86
Savage Pass	6170	6.8	11.8	58	31.5	37.4	84
Shanghi Summit	4590	0.0	0.0	*	41.2	47.2	87
Sherwin	3190	0.1	0.0	*	27.7	32.2₍₂₉₎	86
Twelvemile Creek	5530	0.0	0.0	*	36.3	38.3	95
Twin Lakes	6390	22.8	25.0	91	50.9	53.8	95
Basin Index (%)		80			90
SALMON BASIN
Banner Summit	7040	0.1	10.3	1	34.6	34.5	100
Bear Basin	5350	6.7	1.2	558*	29.9	29.3	102
Big Creek Summit	6560	12.4	17.4	71	36.8	39.1	94
Brundage Reservoir	6280	8.2	10.4	79	43.6	43.0	101
Deadwood Summit	6990	30.9	25.6	121	49.6	48.0	103
Galena	7470	3.1	4.8	65	19.7	19.8	99
Galena Summit	8780	7.6	11.2	68	23.9	24.0	100
Lemhi Ridge	8080	0.0	1.6	0	15.5	16.5	94
Meadow Lake	9190	7.6	11.3	67	19.8	22.4	88
Mill Creek Summit	8790	13.4	15.0₍₂₉₎	89	21.7	22.4	97
Moonshine	7490	-M	0.0	*	-M	15.4	*
Moose Creek	6170	0.0	0.0	*	19.8	23.6	84
Morgan Creek	7620	0.3	0.0	*	16.8	17.8	94
Mountain Meadows	6340	9.9	9.9	100	36.3	35.6	102
Saddle Mtn.	7890	14.4	18.0	80	21.5	26.8	80
Schwartz Lake	8620	0.0	0.6₍₂₅₎	0*	17.4	17.9₍₂₅₎	97
Secesh Summit	6520	14.9	12.9	116	42.8	34.2	125
Puhi Flat	6240	0.0	0.5	0*	39.0	37.9	103
Vienna Mine	8930	20.4	26.9	76	32.9	35.6	92
West Branch	5590	0.0	0.0	*	39.5	35.0	113
Basin Index (%)		84			100
WEISER BASIN
Bear Saddle	6170	2.5	0.0	*	31.8	29.2	109
Puhi Flat	6240	0.0	0.5	0*	39.0	37.9	103
Van Wyck	4960	0.0	0.0₍₁₉₎	*	20.1	21.0₍₁₉₎	96
West Branch	5590	0.0	0.0	*	39.5	35.0	113
Basin Index (%)		500*			106
PAYETTE BASIN
Banner Summit	7040	0.1	10.3	1	34.6	34.5	100
Bear Basin	5350	6.7	1.2	558*	29.9	29.3	102
Big Creek Summit	6560	12.4	17.4	71	36.8	39.1	94
Bogus Basin	6370	0.5	0.0₍₂₁₎	*	33.7	25.8₍₂₁₎	131
Brundage Reservoir	6280	8.2	10.4	79	43.6	43.0	101
Cozy Cove	5410	-M	0.0	*	-M	25.8	*
Deadwood Summit	6990	30.9	25.6	121	49.6	48.0	103
Jackson Peak	7060	14.5	13.9	104	39.7	36.8	108
Long Valley	4890	0.0	0.0₍₁₉₎	*	22.2	20.3₍₁₉₎	109
Secesh Summit	6520	14.9	12.9	116	42.8	34.2	125
Puhi Flat	6240	0.0	0.5	0*	39.0	37.9	103
Van Wyck	4960	0.0	0.0₍₁₉₎	*	20.1	21.0₍₁₉₎	96
Basin Index (%)		96			106
BOISE BASIN
Atlanta Summit	7570	16.0	16.8	95	35.3	36.1	98
Bogus Basin	6370	0.5	0.0₍₂₁₎	*	33.7	25.8₍₂₁₎	131
Camas Creek Divide	5720	0.0	0.0₍₂₉₎	*	21.3	20.3₍₂₈₎	105
Couch Summit	6770	0.2	N/A	*	20.6	N/A	*
Dollarhide Summit	8390	6.5	16.6	39	21.0	28.4	74
Graham Guard Sta.	5680	0.0	0.0	*	26.9	25.4	106
Jackson Peak	7060	14.5	13.9	104	39.7	36.8	108
Mores Creek Summit	6090	0.3	7.0	4	42.4	40.6	104
Prairie	4800	0.0	0.0	*	20.2	18.2	111
Trinity Mtn.	7790	24.8	28.5	87	42.2	43.8	96
Vienna Mine	8930	20.4	26.9	76	32.9	35.6	92
Basin Index (%)		76			101
BIG WOOD BASIN
Camas Creek Divide	5720	0.0	0.0₍₂₉₎	*	21.3	20.3₍₂₈₎	105
Chocolate Gulch	6310	0.0	0.0₍₂₇₎	*	15.9	16.9₍₂₇₎	94
Couch Summit	6770	0.2	N/A	*	20.6	N/A	*
Dollarhide Summit	8390	6.5	16.6	39	21.0	28.4	74
Galena	7470	3.1	4.8	65	19.7	19.8	99
Galena Summit	8780	7.6	11.2	68	23.9	24.0	100
Hyndman	7590	0.0	0.0	*	15.9	18.9	84
Lost-Wood Divide	7870	0.1	5.8	2	21.3	22.1	96
Soldier R.S.	5780	0.1	0.0	*	18.1	20.6	88
Basin Index (%)		45			92
LITTLE WOOD BASIN
Bear Canyon	7920	0.0	4.8	0	18.7	21.2	88
Fish Ck	6380	0.6	N/A	*	15.0	N/A	*
Garfield R.S.	6580	0.0	0.0	*	11.9	15.2	78
Smiley Mountain	9540	7.9	12.7₍₁₉₎	62	20.6	22.2₍₁₉₎	93
Swede Peak	7640	0.2	1.9	11	15.7	19.4	81
Basin Index (%)		42			86
BIG LOST BASIN
Bear Canyon	7920	0.0	4.8	0	18.7	21.2	88
Hilts Creek	8090	0.2	0.6	33*	13.6	16.2	84
Lost-Wood Divide	7870	0.1	5.8	2	21.3	22.1	96
Smiley Mountain	9540	7.9	12.7₍₁₉₎	62	20.6	22.2₍₁₉₎	93
Stickney Mill	7440	0.0	0.0	*	12.5	13.6	92
Basin Index (%)		34			91
LITTLE LOST
Hilts Creek	8090	0.2	0.6	33*	13.6	16.2	84
Meadow Lake	9190	7.6	11.3	67	19.8	22.4	88
Moonshine	7490	-M	0.0	*	-M	15.4	*
Basin Index (%)		66*			87
BIRCH, MEDICINE LODGE, BEAVER, CAMAS BASINS
Beagle Springs	8880	2.0	0.7	286*	15.2	13.9	109
Crab Creek	6870	0.0	0.0	*	15.4	18.0	86
Lakeview Ridge	7340	0.0	0.0	*	15.5	17.6	88
Meadow Lake	9190	7.6	11.3	67	19.8	22.4	88
Basin Index (%)		80*			92
HENRYS FORK, TETON BASINS
Black Bear	8160	24.6	34.9	70	40.4	43.0	94
Grand Targhee	9260	38.7	43.4₍₁₄₎	89	36.9	38.4₍₁₄₎	96
Grassy Lake	7330	13.2	15.5	85	39.9	41.4	96
Island Park	6300	0.0	0.0	*	19.9	20.8	96
Lewis Lake Divide	7880	14.4	21.9	66	40.1	39.3	102
Phillips Bench	8160	14.3	19.4	74	31.8	31.2	102
Pine Creek Pass	6710	0.0	0.0	*	26.1	25.2	104
White Elephant	7670	2.5	16.8	15	30.8	34.2	90
Basin Index (%)		71			97
SNAKE BASIN ABOVE PALISADES
Base Camp	7040	0.0	0.0	*	24.9	24.6	101
Blind Bull Sum	8880	21.5	21.2	101	21.7	21.0	103
Cottonwood Creek	7710	9.5	7.9	120	34.0	30.0	113
East Rim Divide	8010	0.0	0.0	*	14.7	14.0	105
Granite Creek	6770	0.0	0.0	*	21.9	22.6	97
Grassy Lake	7330	13.2	15.5	85	39.9	41.4	96
Gros Ventre Summit	8760	1.0	5.4	19	16.2	15.6	104
Gunsight Pass	9830	8.2	10.0₍₂₂₎	82	17.5	17.4₍₂₂₎	101
Lewis Lake Divide	7880	14.4	21.9	66	40.1	39.3	102
Loomis Park	8240	0.0	1.6	0	20.3	20.6	99
Phillips Bench	8160	14.3	19.4	74	31.8	31.2	102
Salt River Summit	7630	0.0	0.0	*	15.9	19.0	84
Snake River Station	6900	0.0	0.0	*	25.6	26.8	96
Somsen Ranch	6830	0.0	0.0	*	19.5	19.8	98
Spring Creek Divide	9020	22.8	20.8	110	28.9	28.0	103
Thumb Divide	7970	-M	0.4	*	-M	22.4	*
Togwotee Pass	9590	18.8	22.8	82	29.8	29.2	102
Triple Peak	8520	12.3	10.4	118	31.4	30.6	103
Two Ocean Plateau	9240	24.3	29.4	83	30.4	31.2	97
Willow Creek	8060	18.7	17.5	107	44.2	40.2	110
Younts Peak	8340	0.0	8.2₍₂₈₎	0	17.3	18.8₍₂₈₎	92
Basin Index (%)		84			101
WILLOW, BLACKFOOT, PORTNEUF BASINS
Oxford Spring	6790	0.1	0.0₍₂₉₎	*	19.6	19.2	102
Pebble Creek	6520	0.0	N/A	*	26.2	N/A	*
Sedgwick Peak	7800	0.0	1.1	0*	25.3	25.2	100
Sheep Mtn.	6630	0.0	0.0	*	18.3	19.4	94
Slug Creek Divide	7240	0.1	0.0	*	26.6	25.4	105
Somsen Ranch	6830	0.0	0.0	*	19.5	19.8	98
Wildhorse Divide	6480	0.3	0.0	*	27.8	23.1	120
Basin Index (%)		45*			104
SNAKE BASIN ABOVE AMERICAN FALLS
Base Camp	7040	0.0	0.0	*	24.9	24.6	101
Black Bear	8160	24.6	34.9	70	40.4	43.0	94
Blind Bull Sum	8880	21.5	21.2	101	21.7	21.0	103
Cottonwood Creek	7710	9.5	7.9	120	34.0	30.0	113
East Rim Divide	8010	0.0	0.0	*	14.7	14.0	105
Grand Targhee	9260	38.7	43.4₍₁₄₎	89	36.9	38.4₍₁₄₎	96
Granite Creek	6770	0.0	0.0	*	21.9	22.6	97
Grassy Lake	7330	13.2	15.5	85	39.9	41.4	96
Gros Ventre Summit	8760	1.0	5.4	19	16.2	15.6	104
Gunsight Pass	9830	8.2	10.0₍₂₂₎	82	17.5	17.4₍₂₂₎	101
Island Park	6300	0.0	0.0	*	19.9	20.8	96
Lewis Lake Divide	7880	14.4	21.9	66	40.1	39.3	102
Loomis Park	8240	0.0	1.6	0	20.3	20.6	99
Oxford Spring	6790	0.1	0.0₍₂₉₎	*	19.6	19.2	102
Phillips Bench	8160	14.3	19.4	74	31.8	31.2	102
Pine Creek Pass	6710	0.0	0.0	*	26.1	25.2	104
Salt River Summit	7630	0.0	0.0	*	15.9	19.0	84
Sedgwick Peak	7800	0.0	1.1	0*	25.3	25.2	100
Sheep Mtn.	6630	0.0	0.0	*	18.3	19.4	94
Slug Creek Divide	7240	0.1	0.0	*	26.6	25.4	105
Snake River Station	6900	0.0	0.0	*	25.6	26.8	96
Somsen Ranch	6830	0.0	0.0	*	19.5	19.8	98
Spring Creek Divide	9020	22.8	20.8	110	28.9	28.0	103
Thumb Divide	7970	-M	0.4	*	-M	22.4	*
Togwotee Pass	9590	18.8	22.8	82	29.8	29.2	102
Two Ocean Plateau	9240	24.3	29.4	83	30.4	31.2	97
White Elephant	7670	2.5	16.8	15	30.8	34.2	90
Wildhorse Divide	6480	0.3	0.0	*	27.8	23.1	120
Willow Creek	8060	18.7	17.5	107	44.2	40.2	110
Basin Index (%)		80			100
RAFT BASIN
George Creek	8960	6.7	9.2₍₁₀₎	73	22.0	23.6₍₁₀₎	93
Howell Canyon	8010	3.6	9.6	38	32.5	33.6	97
Basin Index (%)		55			95
GOOSE CREEK BASIN
Bostetter R.S.	7530	0.0	0.0	*	22.2	21.6	103
Magic Mountain	6940	0.0	0.0	*	24.5	27.3	90
Basin Index (%)		*			96
SALMON FALLS BASIN
Bostetter R.S.	7530	0.0	0.0	*	22.2	21.6	103
Jakes Creek	7380	-M	N/A	*	17.0	N/A	*
Magic Mountain	6940	0.0	0.0	*	24.5	27.3	90
ONeil Creek	6490	0.0	N/A	*	10.6	N/A	*
Pole Creek R.S.	8360	11.0	13.7	80	16.3	15.3	107
Wilson Creek	7110	0.0	0.0	*	21.2	21.7	98
Basin Index (%)		80*			98
BRUNEAU BASIN
Bear Creek	8090	0.0	7.3	0	25.8	28.0	92
Big Bend	6890	0.0	0.0	*	14.3	13.0	110
Merritt Mountain	6920	-M	N/A	*	14.0	N/A	*
ONeil Creek	6490	0.0	N/A	*	10.6	N/A	*
Pole Creek R.S.	8360	11.0	13.7	80	16.3	15.3	107
Seventysix Creek	7360	0.0	0.0	*	17.5	16.5	106
Stag Mountain	7640	-M	N/A	*	9.4	N/A	*
Wilson Creek	7110	0.0	0.0	*	21.2	21.7	98
Basin Index (%)		52*			101
OWYHEE BASIN
Big Bend	6890	0.0	0.0	*	14.3	13.0	110
Columbia Basin	6480	-M	N/A	*	20.7	N/A	*
Fawn Creek	7040	0.0	0.0	*	25.2	27.2	93
Fry Canyon	6790	0.0	N/A	*	19.9	N/A	*
Jack Creek Upper	7380	0.0	0.0	*	22.5	23.0	98
Jacks Peak	8440	-M	N/A	*	26.9	28.5	94
Laurel Draw	6680	0.0	0.0	*	23.2	20.2	115
Merritt Mountain	6920	-M	N/A	*	14.0	N/A	*
Mud Flat	5750	0.0	0.0	*	14.1	13.2	107
South Mtn.	6650	0.0	0.0	*	32.7	27.6	118
Taylor Canyon	6320	0.0	0.0	*	9.1	9.8	93
Toe Jam	7700	0.0	0.0₍₁₁₎	*	23.7	21.5₍₁₁₎	110
Basin Index (%)		*			104
BEAR RIVER BASIN
Bear River RS	8510	0.0	0.0₍₁₀₎	*	14.8	14.6₍₁₀₎	101
Bug Lake	7980	0.0	5.2	0	22.1	20.3	109
Burts Miller Ranch	7900	0.0	0.0₍₁₁₎	*	14.2	9.4₍₁₁₎	151
Chalk Creek #1	9160	3.3	12.8	26	26.6	28.8	92
Emigrant Summit	7390	3.2	8.0	40	30.5	28.4	107
Franklin Basin	8140	12.4	12.4	100	35.6	33.7	106
Garden City Summit	7680	0.0	0.0₍₁₁₎	*	22.2	21.3₍₁₁₎	104
Giveout	6940	0.0	0.0	*	15.9	15.7	101
Hayden Fork	9160	0.0	0.0	*	24.1	24.8	97
Kelley R.S.	8240	1.8	2.1	86	21.5	20.4	105
Klondike Narrows	7280	0.0	0.0₍₁₁₎	*	30.3	29.7₍₁₁₎	102
Lily Lake	9130	0.0	0.0	*	17.2	20.4	84
Monte Cristo	8930	9.5	15.0	63	28.7	29.8	96
Oxford Spring	6790	0.1	0.0₍₂₉₎	*	19.6	19.2	102
Salt River Summit	7630	0.0	0.0	*	15.9	19.0	84
Sedgwick Peak	7800	0.0	1.1	0*	25.3	25.2	100
Slug Creek Divide	7240	0.1	0.0	*	26.6	25.4	105
Spring Creek Divide	9020	22.8	20.8	110	28.9	28.0	103
Tony Grove Lake	8450	14.4	19.5	74	40.2	40.0	100
Trial Lake	9970	9.5	14.8	64	27.4	27.0	101
Usu Doc Daniel	8610	20.3	23.5₍₁₃₎	86	31.6	32.8₍₁₃₎	96
Basin Index (%)		72*			101

-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.