Arosa snow history

10 years of snow depth, snowfall and conditions at Graubünden, Switzerland · 5,906ft to 8,704ft

Over the last 10 seasons Arosa, Switzerland has averaged 153in of snowfall, a peak snow depth of 59in, 3 powder days and 18 bluebird days a year, with skiable cover from around December 1 to May 22.

Snow history & climate

10-year averages for Arosa

153 in
Snowfall / season
Nov-May total
59 in
Peak depth
typical season high
3
Powder days
6in+ in a day
18
Bluebird days
sun after snow
17
Rain days
0.04in+ of rain
177
Skiable days
12in+ cover

Month by month

Monthly averages

Average snowfall, snow depth, rain, sunshine and day counts by month at Arosa, over the last 10 seasons.
MonthSnowfallAvg depthRainSun/dayTempPowderBluebirdRain days
Jan22 in39 in0in6.2 h24° / 7°0.62.10.2
Feb18 in46 in0in7.3 h29° / 12°0.32.00.3
Mar22 in49 in0in8.6 h32° / 15°0.32.70.0
Apr21 in44 in0.3in10.3 h37° / 21°0.33.42.8
May22 in25 in2.1in10.4 h45° / 29°0.43.512.5
Jun3 in4 in4in12.3 h56° / 38°0.00.417.0
Jul0 in0 in4.7in12.7 h59° / 42°0.00.018.6
Aug1 in0 in5.6in11.1 h59° / 42°0.00.216.6
Sep9 in1 in2.6in9.6 h51° / 34°0.40.911.1
Oct16 in2 in2.3in7.7 h44° / 28°0.51.37.1
Nov23 in11 in0.2in6.2 h32° / 16°0.72.91.5
Dec26 in27 in0in5.5 h27° / 11°0.81.50.1

Averages across the last 10 seasons. Powder, bluebird and rain columns are the average number of such days per month.

Season by season

SeasonSnowfallPeak depthPowder daysBluebird daysSkiable days
2025/26leanest94 in52 in011145
2024/25107 in42 in29150
2023/24best233 in80 in822211
2022/23135 in50 in218179
2021/22132 in57 in317191
2020/21169 in61 in321178
2019/20145 in68 in320193
2018/19207 in67 in622187
2017/18176 in77 in514189
2016/17135 in42 in227151
How these numbers are calculated
  • Powder day — at least 6in of new snow in 24 hours.
  • Bluebird day — sunshine for at least 60% of daylight, following at least 4in of snow over the previous 3 days.
  • Rain day — at least 0.04in of rain (not snow) at this elevation.
  • Skiable day — at least 12in of settled snow on the ground.
  • Snow depth is modelled from Open-Meteo / ERA5 reanalysis at 7,306ft, not measured at the resort. Use it to compare seasons and resorts; use the resort's own report for today's conditions.

How Arosa compares

Measured against 40 other resorts across 18 countries, each analysed exactly the same way. The line down the middle of each bar is the median.

Snowfall per season
well above average
153 in
Ahead of 80% of resortsMedian 111 in

Total new snow between November and May.

Peak snow depth
well above average
59 in
Ahead of 85% of resortsMedian 33 in

How deep the settled base gets at its yearly high.

Powder days
above average
3
Ahead of 60% of resortsMedian 2

Days with 6in or more of new snow.

Bluebird days
well above average
18
Ahead of 83% of resortsMedian 10

Sun and fresh snow on the same day.

Rain days
well below average
17
Drier than 80% of resortsMedian 32

Days with 0.04in or more of rain, not snow.

Skiable days
well above average
177
Ahead of 85% of resortsMedian 115

Days holding 12in or more of settled snow.

The season at Arosa

Typical stretch holding 12in or more of settled snow, averaged over the record.

SepOctNovDecJanFebMarAprMayJunJulAug
Cover arrives
December 1
Season ends
May 22
Days of cover
174 days

When to go

These rarely land in the same month, so it is worth deciding which one matters most before you book.

Deepest base
March
49in average depth
Most new snow
December
26in and 0.8 powder days
Best bluebird odds
May
3.5 bluebird days, 10.4h sun a day
Wettest month
May
12.5 rain days

Is Arosa a good place to ski or board?

heavy snowfalla deep, reliable baseplenty of bluebird daysvery little raina long season

On 10 years of record, Arosa stands out for heavy snowfall, a deep, reliable base, plenty of bluebird days, very little rain and a long season.

Figures are modelled at 7,306ft from reanalysis data and describe an average year, not a forecast.

Arosa snow record in detail

How much snow does Arosa get?

Arosa averages 153in of snowfall over a full season, measured from November to May across the last 10 winters. That is well above average: more snow than 80% of 40 resorts we have analysed the same way, where the median season brings 111in.

Season to season the spread is wide. The best of the last 10 winters was 2023/24 with 233in, and the leanest was 2025/26 with 94in — a difference of 139in between a good year and a poor one. The most recent complete season, 2025/26, delivered 94in.

December is reliably the snowiest month, averaging 26in and 11 days with fresh snow.

How deep does the snow get at Arosa?

Snowfall totals flatter resorts that lose their snow quickly, so the more useful number is how deep the settled base actually gets. At Arosa the snowpack peaks at an average of 59in each season. That is well above average, deeper than 85% of 40 resorts we have analysed the same way, against a median peak of 33in.

The base is deepest in March, averaging 49in through the month and topping out around 56in in a typical year.

How many powder days does Arosa get?

Counting any day that delivers at least 6in of new snow, Arosa averages 3 powder days a season. That is above average, more powder days than 60% of 40 resorts we have analysed the same way, where the median is 2 a season.

December has the most, 0.8 on average.

How often does Arosa get bluebird days?

Arosa averages 18 bluebird days a season — days of sunshine for at least 60% of daylight after 4in or more of fresh snow. That is well above average, more than 83% of 40 resorts we have analysed the same way, against a median of 10.

May is the best month for it, averaging 3.5 bluebird days and 10.4 hours of sunshine a day.

Does it rain at Arosa?

At mid-mountain Arosa sees an average of 17 days a season with 0.04in or more of rain rather than snow. That is well below average: 20% of the 40 other resorts we have analysed the same way see fewer wet days, against a median of 32.

May is the wettest month of the season, with 12.5 rain days and 2.1in on average.

When is the best time to ski or board Arosa, and when does the season end?

Arosa typically holds at least 12in of settled snow from around December 1 through to May 22, which works out at roughly 174 days of skiable cover in an average year. 177 of those fall inside the November to May season. On season length that is well above average compared with the 40 other resorts we have analysed the same way.

For the deepest base, go in March; for the most new snow, December; for fresh snow with sunshine, May.

Comparisons use 40 resorts across 18 countries, each measured over 5 recent seasons at mid-mountain height. Glaciated locations, where the model never melts the snow out, are excluded. Figures for Arosa are taken at 7,306ft. Corpus last rebuilt September 2, 2026.

Arosa month by month

What to expect in each month of the season, from the same ten-year record. Figures are averages for mid-mountain; a good or poor winter can move them a long way.

Arosa in November

Early and thin

November is the start of the season at Arosa: the base averages 11in, which is skiable in a good year but patchy in a poor one. It is the second-snowiest month of the season, with 22in of new snow on average, 10 snow days and 0.7 powder days. Average highs are 32°F and lows 16°F, with 6.2 hours of sunshine a day and 2.9 bluebird days. Expect the odd wet day — 1.5 on average at mid-mountain.

Arosa in December

Base building

December is when the base starts to build, averaging 28in and deepening towards its March peak. It is the snowiest month of the season, with 26in of new snow on average, 11 snow days and 0.8 powder days. Average highs are 27°F and lows 11°F, with 5.5 hours of sunshine a day and 1.5 bluebird days. Rain is rare: under two days in a typical December.

Arosa in January

Base building

Through January the base keeps building, to an average of 39in. It is the third-snowiest month of the season, with 22in of new snow on average, 11 snow days and 0.6 powder days. Average highs are 24°F and lows 7°F, with 6.2 hours of sunshine a day and 2.1 bluebird days.

Arosa in February

Base building

By February the base is close to its March peak, averaging 46in. It brings 18in of new snow in an average year, with 9 snow days and 0.3 powder days. Average highs are 29°F and lows 12°F, with 7.3 hours of sunshine a day and 2 bluebird days.

Arosa in March

Best all round

March is when the base at Arosa is at its deepest, averaging 49in through the month and peaking around 56in in a typical year. It brings 22in of new snow in an average year, with 12 snow days and 0.3 powder days. Average highs are 32°F and lows 15°F, with 8.6 hours of sunshine a day and 2.7 bluebird days. Taking cover, fresh snow, sunshine and rain together, it is the best all-round month at Arosa.

Arosa in April

Still deep

April still has a deep base, averaging 44in — only a little down on the March peak. It brings 21in of new snow in an average year, with 9 snow days and 0.3 powder days. Average highs are 37°F and lows 21°F, with 10.3 hours of sunshine a day and 3.4 bluebird days. Expect the odd wet day — 2.8 on average at mid-mountain.

Arosa in May

Late season

In May the base averages 25in, past its March peak of 49in and thinning. It brings 22in of new snow in an average year, with 11 snow days and 0.4 powder days. Average highs are 45°F and lows 29°F, with 10.4 hours of sunshine a day and 3.5 bluebird days, the most of any month. Rain is a real risk: 12.5 days with rain rather than snow at mid-mountain in an average May.

How Arosa compares with nearby resorts

Of Arosa and the 4 nearest resorts with a ten-year record, Arosa ranks 4 of 5 for snowfall, with 153in a season. Davos, Klosters and Flims get more; Lenzerheide gets less.

Flims has the most powder days (7 a season, against 3 here); Flims builds the deepest base (78in against 59in); and Klosters gets the most bluebird days (24 a season).

Each resort is measured at its own mid-mountain height, so part of any difference is altitude: a resort modelled 1,640ft higher will usually hold more snow. The table shows the height each figure comes from.

Ten-year snow averages for Arosa and the nearest resorts with a record
ResortDistanceMeasured atSnowfallPeak basePowder daysBluebird days
Arosa—7,306ft153in59in318
Lenzerheide7 mi7,162ft145in57in417
Davos8 mi7,224ft184in67in523
Klosters12 mi6,581ft199in74in524
Flims19 mi6,755ft213in78in720

Distances are straight-line. Season averages, November to May, over the last ten winters.

More on Arosa

Ski resorts near Arosa

Distances are straight-line, not by road.