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Arosa vs Crested Butte
Comparing Arosa change · Crested Butte change
Arosa is the warmer of the two — about 2°C on the annual average; Arosa is the wetter, with 578 mm more rain a year, and Crested Butte the sunnier.
How the seasons compare
The differences between Arosa and Crested Butte, in everyday terms.
Summers
Crested Butte has far hotter summers
Arosa: Cool
Crested Butte: Mild
Winters
Arosa has far milder winters
Arosa: Very cold
Crested Butte: Bitterly cold
Rain & snow
Arosa is wetter
Arosa: Wet
Crested Butte: Moderate rainfall
Sky
Crested Butte is sunnier
Arosa: Often cloudy
Crested Butte: Partly cloudy
Month-by-month charts
Temperature
Arosa is the warmer of the two — about 2°C on the annual average.
Precipitation
Arosa is the wetter — about 578 mm more across the year.
Clear skies
Crested Butte has the clearer skies — the higher line.
Exact monthly numbers
Tap a metric to open its full table. Desktop shows all twelve months; on a phone each metric splits into Jan–Jun and Jul–Dec.
Avg high (°C) Crested Butte runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Arosa | -0 | -0 | 2 | 5 | 10 | 14 | 16 | 16 | 12 | 9 | 3 | 0 |
| Crested Butte | -3 | -1 | 4 | 8 | 15 | 21 | 25 | 23 | 19 | 13 | 4 | -3 |
| Difference | -3 | -1 | +1 | +3 | +5 | +8 | +9 | +7 | +7 | +4 | +1 | -3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Arosa | -0 | -0 | 2 | 5 | 10 | 14 |
| Crested Butte | -3 | -1 | 4 | 8 | 15 | 21 |
| Difference | -3 | -1 | +1 | +3 | +5 | +8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Arosa | 16 | 16 | 12 | 9 | 3 | 0 |
| Crested Butte | 25 | 23 | 19 | 13 | 4 | -3 |
| Difference | +9 | +7 | +7 | +4 | +1 | -3 |
Avg low (°C) Arosa runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Arosa | -7 | -8 | -5 | -2 | 3 | 6 | 8 | 8 | 5 | 2 | -3 | -6 |
| Crested Butte | -21 | -19 | -14 | -7 | -2 | 1 | 4 | 4 | -0 | -6 | -13 | -20 |
| Difference | -14 | -11 | -9 | -5 | -5 | -5 | -4 | -5 | -5 | -7 | -10 | -14 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Arosa | -7 | -8 | -5 | -2 | 3 | 6 |
| Crested Butte | -21 | -19 | -14 | -7 | -2 | 1 |
| Difference | -14 | -11 | -9 | -5 | -5 | -5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Arosa | 8 | 8 | 5 | 2 | -3 | -6 |
| Crested Butte | 4 | 4 | -0 | -6 | -13 | -20 |
| Difference | -4 | -5 | -5 | -7 | -10 | -14 |
Precipitation (mm) Arosa runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Arosa | 77 | 65 | 73 | 77 | 97 | 132 | 136 | 158 | 104 | 90 | 90 | 80 |
| Crested Butte | 69 | 65 | 54 | 51 | 38 | 24 | 50 | 50 | 49 | 43 | 51 | 57 |
| Difference | -8 | — | -20 | -26 | -59 | -108 | -86 | -108 | -55 | -47 | -39 | -23 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Arosa | 77 | 65 | 73 | 77 | 97 | 132 |
| Crested Butte | 69 | 65 | 54 | 51 | 38 | 24 |
| Difference | -8 | — | -20 | -26 | -59 | -108 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Arosa | 136 | 158 | 104 | 90 | 90 | 80 |
| Crested Butte | 50 | 50 | 49 | 43 | 51 | 57 |
| Difference | -86 | -108 | -55 | -47 | -39 | -23 |
Snowfall (cm)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Arosa | — | — | — | — | — | — | — | — | — | — | — | — |
| Crested Butte | 106 | 90 | 69 | 46 | 17 | 1 | 0 | 0 | 3 | 20 | 66 | 88 |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Arosa | — | — | — | — | — | — |
| Crested Butte | 106 | 90 | 69 | 46 | 17 | 1 |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Arosa | — | — | — | — | — | — |
| Crested Butte | 0 | 0 | 3 | 20 | 66 | 88 |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Arosa runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Arosa | 68 | 70 | 72 | 75 | 75 | 69 | 62 | 61 | 63 | 65 | 70 | 70 |
| Crested Butte | 54 | 60 | 60 | 63 | 61 | 46 | 57 | 58 | 46 | 44 | 49 | 54 |
| Difference | -13 | -10 | -13 | -12 | -14 | -23 | -5 | -3 | -18 | -22 | -22 | -16 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Arosa | 68 | 70 | 72 | 75 | 75 | 69 |
| Crested Butte | 54 | 60 | 60 | 63 | 61 | 46 |
| Difference | -13 | -10 | -13 | -12 | -14 | -23 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Arosa | 62 | 61 | 63 | 65 | 70 | 70 |
| Crested Butte | 57 | 58 | 46 | 44 | 49 | 54 |
| Difference | -5 | -3 | -18 | -22 | -22 | -16 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Arosa | 88 | 89 | 87 | 80 | 79 | 79 | 80 | 81 | 83 | 84 | 87 | 88 |
| Crested Butte | 91 | 94 | 89 | 76 | 64 | 52 | 56 | 59 | 57 | 63 | 77 | 89 |
| Difference | +3 | +5 | +3 | -4 | -14 | -27 | -24 | -22 | -26 | -21 | -11 | +1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Arosa | 88 | 89 | 87 | 80 | 79 | 79 |
| Crested Butte | 91 | 94 | 89 | 76 | 64 | 52 |
| Difference | +3 | +5 | +3 | -4 | -14 | -27 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Arosa | 80 | 81 | 83 | 84 | 87 | 88 |
| Crested Butte | 56 | 59 | 57 | 63 | 77 | 89 |
| Difference | -24 | -22 | -26 | -21 | -11 | +1 |
How both climates are changing
Both cities are warming. Each city has its own warming trend; see its trends page for the year-by-year detail. Arosa trends → · Crested Butte trends →
Methodology & sources
Arosa
Temperature & precipitation — the official 1991–2020 climate normals from a national meteorological service, measured at Arosa, about 2 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.
Crested Butte
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Crested Butte, a weather station, about 1 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.
← change Arosa · change Crested Butte → · Arosa page · Crested Butte page