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Chamonix-Mont-Blanc vs Crested Butte
Comparing Chamonix-Mont-Blanc change · Crested Butte change
Chamonix-Mont-Blanc is the warmer of the two — about 7°C on the annual average; Chamonix-Mont-Blanc is the wetter, with 667 mm more rain a year, and Crested Butte the sunnier.
How the seasons compare
The differences between Chamonix-Mont-Blanc and Crested Butte, in everyday terms.
Summers
Summers are nearly the same
Chamonix-Mont-Blanc: Mild
Crested Butte: Mild
Winters
Chamonix-Mont-Blanc has far milder winters
Chamonix-Mont-Blanc: Cold
Crested Butte: Bitterly cold
Rain & snow
Chamonix-Mont-Blanc is wetter
Chamonix-Mont-Blanc: Wet
Crested Butte: Moderate rainfall
Sky
Crested Butte is sunnier
Chamonix-Mont-Blanc: Often cloudy
Crested Butte: Partly cloudy
Month-by-month charts
Temperature
Chamonix-Mont-Blanc is the warmer of the two — about 7°C on the annual average.
Precipitation
Chamonix-Mont-Blanc is the wetter — about 667 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) Chamonix-Mont-Blanc runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 3 | 6 | 10 | 14 | 18 | 22 | 24 | 24 | 20 | 15 | 8 | 3 |
| Crested Butte | -3 | -1 | 4 | 8 | 15 | 21 | 25 | 23 | 19 | 13 | 4 | -3 |
| Difference | -6 | -7 | -7 | -6 | -4 | -1 | — | -1 | — | -2 | -4 | -6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 3 | 6 | 10 | 14 | 18 | 22 |
| Crested Butte | -3 | -1 | 4 | 8 | 15 | 21 |
| Difference | -6 | -7 | -7 | -6 | -4 | -1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 24 | 24 | 20 | 15 | 8 | 3 |
| Crested Butte | 25 | 23 | 19 | 13 | 4 | -3 |
| Difference | — | -1 | — | -2 | -4 | -6 |
Avg low (°C) Chamonix-Mont-Blanc runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | -7 | -6 | -2 | 1 | 5 | 8 | 9 | 9 | 6 | 3 | -2 | -5 |
| Crested Butte | -21 | -19 | -14 | -7 | -2 | 1 | 4 | 4 | -0 | -6 | -13 | -20 |
| Difference | -15 | -13 | -11 | -8 | -7 | -7 | -5 | -5 | -7 | -8 | -11 | -15 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | -7 | -6 | -2 | 1 | 5 | 8 |
| Crested Butte | -21 | -19 | -14 | -7 | -2 | 1 |
| Difference | -15 | -13 | -11 | -8 | -7 | -7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 9 | 9 | 6 | 3 | -2 | -5 |
| Crested Butte | 4 | 4 | -0 | -6 | -13 | -20 |
| Difference | -5 | -5 | -7 | -8 | -11 | -15 |
Precipitation (mm) Chamonix-Mont-Blanc runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 99 | 78 | 83 | 88 | 124 | 124 | 128 | 130 | 96 | 106 | 99 | 114 |
| Crested Butte | 69 | 65 | 54 | 51 | 38 | 24 | 50 | 50 | 49 | 43 | 51 | 57 |
| Difference | -30 | -13 | -29 | -37 | -86 | -100 | -77 | -80 | -47 | -63 | -48 | -57 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 99 | 78 | 83 | 88 | 124 | 124 |
| Crested Butte | 69 | 65 | 54 | 51 | 38 | 24 |
| Difference | -30 | -13 | -29 | -37 | -86 | -100 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 128 | 130 | 96 | 106 | 99 | 114 |
| Crested Butte | 50 | 50 | 49 | 43 | 51 | 57 |
| Difference | -77 | -80 | -47 | -63 | -48 | -57 |
Snowfall (cm) Crested Butte runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 52 | 45 | 21 | 13 | 1 | 0 | 0 | 0 | 0 | 1 | 24 | 56 |
| Crested Butte | 106 | 90 | 69 | 46 | 17 | 1 | 0 | 0 | 3 | 20 | 66 | 88 |
| Difference | +54 | +45 | +49 | +33 | +17 | +1 | — | — | +3 | +19 | +43 | +32 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 52 | 45 | 21 | 13 | 1 | 0 |
| Crested Butte | 106 | 90 | 69 | 46 | 17 | 1 |
| Difference | +54 | +45 | +49 | +33 | +17 | +1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 0 | 0 | 0 | 1 | 24 | 56 |
| Crested Butte | 0 | 0 | 3 | 20 | 66 | 88 |
| Difference | — | — | +3 | +19 | +43 | +32 |
Cloud cover (%) Chamonix-Mont-Blanc runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 66 | 67 | 69 | 72 | 73 | 65 | 56 | 56 | 60 | 64 | 68 | 68 |
| Crested Butte | 54 | 60 | 60 | 63 | 61 | 46 | 57 | 58 | 46 | 44 | 49 | 54 |
| Difference | -11 | -7 | -9 | -9 | -12 | -19 | — | +2 | -14 | -20 | -19 | -14 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 66 | 67 | 69 | 72 | 73 | 65 |
| Crested Butte | 54 | 60 | 60 | 63 | 61 | 46 |
| Difference | -11 | -7 | -9 | -9 | -12 | -19 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 56 | 56 | 60 | 64 | 68 | 68 |
| Crested Butte | 57 | 58 | 46 | 44 | 49 | 54 |
| Difference | — | +2 | -14 | -20 | -19 | -14 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 85 | 86 | 86 | 80 | 78 | 77 | 75 | 73 | 77 | 79 | 84 | 84 |
| Crested Butte | 91 | 94 | 89 | 76 | 64 | 52 | 56 | 59 | 57 | 63 | 77 | 89 |
| Difference | +6 | +8 | +3 | -4 | -14 | -25 | -19 | -14 | -20 | -16 | -8 | +4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 85 | 86 | 86 | 80 | 78 | 77 |
| Crested Butte | 91 | 94 | 89 | 76 | 64 | 52 |
| Difference | +6 | +8 | +3 | -4 | -14 | -25 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Chamonix-Mont-Blanc | 75 | 73 | 77 | 79 | 84 | 84 |
| Crested Butte | 56 | 59 | 57 | 63 | 77 | 89 |
| Difference | -19 | -14 | -20 | -16 | -8 | +4 |
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. Chamonix-Mont-Blanc trends → · Crested Butte trends →
Methodology & sources
Chamonix-Mont-Blanc
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Chamonix, a weather station, inside the city. 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.
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.
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