Volcano·United States

Mount Adams

3,743m

Cascade Range

Washington DNR · CC BY-SA 2.0 · Wikimedia Commons

Elevation: 3,743m
Prominence: 2,474m
Relief: 1,960mabove the lowest point within 5 km
Steepest slope: 50°within 1 km of the summit
Snow at the summit: All yearSee month by month ↓
Summit: 46.2025°N, 121.4908°W

Southern Washington stratovolcano in the Cascade Volcanic Arc

Mount Adams is a volcano in the Cascade Range (United States). Its summit stands 3,743 m above sea level. Its prominence — how far it rises above the highest saddle linking it to a taller summit — is 2,474 m.

From the lowest point within 5 km (1,783 m), it rises 1,960 m. The steepest side is the east face: 32° on average over the first kilometre. In places the ground near the top reaches 50° — terrain for climbers, not walkers.

Mount Adams for skiers and climbers

Two scores out of 10, built only from open data — every part is shown. They describe what the mountain offers, not how safe it is.

Hiking & mountaineering

6.7/10

Difficulty to the top

Alpine climb

Most path sections around the top are T4 on the SAC hiking scale. Glaciers around the top.

Indicative only — never a safety assessment. Conditions change: ask local guides and check the forecast.

1.4/2.53 waymarked routes and 24 path sections nearby
0.0/1.50 huts and shelters
2.0/21,960 m of ascent from the valley
1.5/1.52,474 m of prominence
1.2/1.55 months with summit afternoons above −5 °C
0.6/1via ferratas, climbing and glaciers

Ski score

—

No ski runs within 12 km in OpenStreetMap.

How these scores are made

Ski (where OpenStreetMap has skiing within 12 km): up to 4 points for the length of downhill runs (300 km or more = 4), 1.5 for the number of lifts (40+), 1.5 for the vertical between lift stations (1,500 m) and 3 for the snow season — a month counts when the estimated mean temperature at the height of the ski area is −1 °C or lower and snow falls or lies there (NASA POWER, 2001–2020). Hiking & mountaineering: up to 2.5 for waymarked routes and paths, 1.5 for huts, 2 for the ascent from the valley (2,000 m), 1.5 for prominence (3,000 m), 1.5 for the season (months with summit afternoons above −5 °C) and 1 for via ferratas, climbing and glaciers. OpenStreetMap is built by volunteers: where few things are mapped, a score can be lower than reality.

Plan your visit

Stay, climb and get there

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Snow

When there is snow on Mount Adams

At the summit, snow all year round. Month by month below, at different heights on the way up.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Summit3,743 msnow all year round	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month
Halfway up2,763 msnow from October to August (some years all year)	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow some of the time	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month
Foot of the mountain1,783 msnow from November to June (some years from October to June)	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	Snow on the ground all month	No snow	No snow	No snow	Snow some of the time	Snow on the ground all month	Snow on the ground all month

Snow on the ground all month
Snow some of the time
No snow
This month

Estimate for a normal year: average temperature and precipitation from NASA POWER, carried to each height, in a simple model of snow building up and melting. In a given year snow can come earlier or stay longer. It does not replace the local snow and avalanche bulletin.

Summit weather

Mount Adams, month by month

Not a forecast: long-term averages (1991–2020), carried up to the summit. The orange line is where an average afternoon reaches 0 °C; above the dashed blue line it freezes even at dawn.

On an average July afternoon the summit reaches about 6 °C; on December nights it falls to about -23 °C. In 8 months of the year it stays below freezing at the top even in the afternoon. In July the 0 °C line climbs to about 4,620 m, above the summit: the top thaws on an average afternoon. Across the region, July is the driest month (9 mm) and December the wettest (165 mm).

0 °C on an average afternoon 0 °C at dawn the summit

Month	Summit high °C	Summit low °C	0 °C line (m)	Rain & snow (mm)	Wet days	Sun h/day
January	-17	-23	1,090	144	20	2.7
February	-16	-23	1,360	96	16	4.7
March	-12	-20	1,860	111	18	5.7
April	-8	-18	2,510	70	16	7.8
May	-2	-14	3,360	56	13	9.1
June	1	-12	3,850	36	9	10.6
July	6	-8	4,620	9	3	12.8
August	6	-8	4,620	15	3	11.2
September	1	-11	3,940	33	6	8.8
October	-6	-16	2,760	90	13	5.9
November	-13	-20	1,680	140	19	3.4
December	-18	-23	1,020	165	19	2.3

Estimate: the NASA POWER climate of a ~55 km cell (average height 863 m), adjusted to the summit by −6.5 °C per 1,000 m. Rain, wet days and sunshine are those of the region. Mountain weather changes fast — always check a local forecast. ★ = mildest months at the top.

Relief

The mountain in profile

Two cuts through the summit, 16 km long, from the 30 m Copernicus elevation model. True scale: no vertical exaggeration.

West – east

South – north

Steepness by direction

Average slope of the first kilometre from the summit. The orange petal is the steepest side.

Around the mountain

Huts, lifts and trails around Mount Adams

Counted around the summit in OpenStreetMap, the map anyone can edit. The satellite plate shows 14 × 14 km.

Mount Adams seen from above (Sentinel-2)

N 5 km

ViewpointsOther summitsGlaciersCampsites

Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 14 × 14 km, north up. Points © OpenStreetMap contributors.

—mountain huts and shelters
—cable cars, gondolas, chairlifts and rack railways
—ski areas
3waymarked hiking routes
PCT - Washington Section H, Killen Creek Trail #113, Highline Trail #114
—via ferratas
1climbing crags and routes
Mount Adams
13named glaciers
Adams Glacier, Avalanche Glacier, Klickitat Glacier, Lava Glacier and 9 more
6viewpoints
Hellroaring Viewpoint and 5 more
42campsites
Bird Lake Campground, High Camp, Divide Camp, Island and 38 more
—hotels, B&Bs and chalets
—restaurants and cafés

How hard are the paths?

24 path sections within 5 km, by SAC hiking scale (T1 easy walk … T6 difficult alpine).

T2T3T4T5

T2 mountain hiking
T3 demanding mountain hiking
T4 alpine hiking
T5 demanding alpine hiking

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OpenStreetMap is built by volunteers: a low number may just mean nobody has mapped it yet. Places © OpenStreetMap contributors (ODbL).

Photos

Seen by climbers and visitors

Barrier Peak, Mount Adams from Sunrise Road — Ron Clausen · CC BY-SA 4.0

Columbia River Gorge National Scenic Area with Mount Adams, McCall Point — Forest Service Pacific Northwest Region · Public domain

Recent years

How each month compared at the summit

Afternoon high at the summit (estimate). The first row is the reference, the 1991–2020 average in °C; the years show only the difference.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1991–2020 average	-17	-16	-12	-8	-2	1	6	6	1	-6	-13	-18
2020	+1.2	+1.3	±0.0	+1.9	+0.1	−0.9	−0.2	+0.2	+2.4	+1.8	−0.4	+1.5
2021	+1.6	−2.2	+0.5	+2.4	+0.5	+4.5	+3.4	+1.7	+1.0	−0.9	+1.4	−0.5
2022	+0.4	+1.4	+2.1	−3.3	−3.2	−0.3	+2.1	+2.8	+2.5	+5.0	−2.6	−1.3
2023	+0.9	−1.0	−2.6	−1.7	+3.4	+2.4	+1.9	+1.9	−0.3	+1.2	+0.5	+2.3
2024	−1.7	+0.8	+1.0	+0.6	−1.1	+0.8	+2.8	−0.5	+1.4	+0.4	−1.1	+0.6
2025	+0.4	−1.7	+0.3	+1.9	−0.8	+1.4	−0.2	+0.3	+2.4	−1.9	+1.5	+3.8

+1 warmer than usual −1 cooler than usual

Nearby

More mountains nearby

2,549 mMount St. Helens

United States54 km away

4,389 mMount Rainier

United States75 km away

3,425 mMount Hood

United States94 km away

3,199 mMount Jefferson

United States172 km away

3,213 mGlacier Peak

United States214 km away

2,432 mMount Olympus

United States245 km away

About these numbers

Names, elevation, prominence	Wikidata (Q267646) · CC0
Relief, 3D view, profiles	Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA
Climate	NASA POWER, 1991–2020 · CC BY 4.0
Around the mountain	© OpenStreetMap contributors · ODbL
Images	EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons

Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.

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