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Arcachon vs Crested Butte
Comparing Arcachon change · Crested Butte change
Arcachon is the warmer of the two — about 23°F on the annual average; Arcachon is the wetter, with 11 in more rain a year, and Crested Butte the sunnier.
How the seasons compare
The differences between Arcachon and Crested Butte, in everyday terms.
Summers
Arcachon has hotter summers
Arcachon: Warm
Crested Butte: Mild
Winters
Arcachon has far milder winters
Arcachon: Chilly
Crested Butte: Bitterly cold
Rain & snow
Arcachon is wetter
Arcachon: Moderate rainfall
Crested Butte: Moderate rainfall
Sky
Crested Butte is sunnier
Arcachon: Often cloudy
Crested Butte: Partly cloudy
Month-by-month charts
Temperature
Arcachon is the warmer of the two — about 23°F on the annual average.
Precipitation
Arcachon is the wetter — about 11 in 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 (°F) Arcachon runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Arcachon | 51 | 54 | 61 | 65 | 72 | 78 | 82 | 83 | 76 | 68 | 58 | 52 |
| Crested Butte | 26 | 30 | 38 | 47 | 58 | 71 | 76 | 74 | 66 | 55 | 40 | 27 |
| Difference | -25 | -24 | -22 | -19 | -14 | -8 | -6 | -9 | -10 | -13 | -18 | -25 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Arcachon | 51 | 54 | 61 | 65 | 72 | 78 |
| Crested Butte | 26 | 30 | 38 | 47 | 58 | 71 |
| Difference | -25 | -24 | -22 | -19 | -14 | -8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Arcachon | 82 | 83 | 76 | 68 | 58 | 52 |
| Crested Butte | 76 | 74 | 66 | 55 | 40 | 27 |
| Difference | -6 | -9 | -10 | -13 | -18 | -25 |
Avg low (°F) Arcachon runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Arcachon | 38 | 37 | 42 | 45 | 51 | 57 | 60 | 60 | 55 | 50 | 43 | 39 |
| Crested Butte | -6 | -2 | 7 | 19 | 28 | 34 | 39 | 39 | 31 | 22 | 9 | -4 |
| Difference | -44 | -39 | -34 | -26 | -23 | -23 | -21 | -22 | -24 | -28 | -33 | -43 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Arcachon | 38 | 37 | 42 | 45 | 51 | 57 |
| Crested Butte | -6 | -2 | 7 | 19 | 28 | 34 |
| Difference | -44 | -39 | -34 | -26 | -23 | -23 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Arcachon | 60 | 60 | 55 | 50 | 43 | 39 |
| Crested Butte | 39 | 39 | 31 | 22 | 9 | -4 |
| Difference | -21 | -22 | -24 | -28 | -33 | -43 |
Precipitation (in) Arcachon runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Arcachon | 3.4 | 2.4 | 2.4 | 2.7 | 2.7 | 2.8 | 1.8 | 2.1 | 3.1 | 3.1 | 4 | 4 |
| Crested Butte | 2.7 | 2.5 | 2.1 | 2 | 1.5 | 0.9 | 2 | 2 | 1.9 | 1.7 | 2 | 2.3 |
| Difference | -0.7 | +0.1 | -0.3 | -0.7 | -1.2 | -1.9 | +0.2 | -0.1 | -1.1 | -1.4 | -2 | -1.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Arcachon | 3.4 | 2.4 | 2.4 | 2.7 | 2.7 | 2.8 |
| Crested Butte | 2.7 | 2.5 | 2.1 | 2 | 1.5 | 0.9 |
| Difference | -0.7 | +0.1 | -0.3 | -0.7 | -1.2 | -1.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Arcachon | 1.8 | 2.1 | 3.1 | 3.1 | 4 | 4 |
| Crested Butte | 2 | 2 | 1.9 | 1.7 | 2 | 2.3 |
| Difference | +0.2 | -0.1 | -1.1 | -1.4 | -2 | -1.8 |
Snowfall (in)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Arcachon | — | — | — | — | — | — | — | — | — | — | — | — |
| Crested Butte | 41.7 | 35.3 | 27.3 | 18 | 6.9 | 0.3 | 0 | 0 | 1 | 8.1 | 26.1 | 34.6 |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Arcachon | — | — | — | — | — | — |
| Crested Butte | 41.7 | 35.3 | 27.3 | 18 | 6.9 | 0.3 |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Arcachon | — | — | — | — | — | — |
| Crested Butte | 0 | 0 | 1 | 8.1 | 26.1 | 34.6 |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Arcachon runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Arcachon | 70 | 65 | 64 | 66 | 67 | 61 | 55 | 54 | 55 | 64 | 69 | 70 |
| Crested Butte | 54 | 60 | 60 | 63 | 61 | 46 | 57 | 58 | 46 | 44 | 49 | 54 |
| Difference | -16 | -5 | -4 | -3 | -6 | -15 | +1 | +4 | -10 | -20 | -21 | -16 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Arcachon | 70 | 65 | 64 | 66 | 67 | 61 |
| Crested Butte | 54 | 60 | 60 | 63 | 61 | 46 |
| Difference | -16 | -5 | -4 | -3 | -6 | -15 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Arcachon | 55 | 54 | 55 | 64 | 69 | 70 |
| Crested Butte | 57 | 58 | 46 | 44 | 49 | 54 |
| Difference | +1 | +4 | -10 | -20 | -21 | -16 |
Relative humidity (%) Arcachon runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Arcachon | 90 | 86 | 81 | 78 | 76 | 73 | 70 | 68 | 70 | 80 | 87 | 90 |
| Crested Butte | 91 | 94 | 89 | 76 | 64 | 52 | 56 | 59 | 57 | 63 | 77 | 89 |
| Difference | +2 | +8 | +8 | -1 | -11 | -22 | -14 | -9 | -13 | -17 | -10 | -2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Arcachon | 90 | 86 | 81 | 78 | 76 | 73 |
| Crested Butte | 91 | 94 | 89 | 76 | 64 | 52 |
| Difference | +2 | +8 | +8 | -1 | -11 | -22 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Arcachon | 70 | 68 | 70 | 80 | 87 | 90 |
| Crested Butte | 56 | 59 | 57 | 63 | 77 | 89 |
| Difference | -14 | -9 | -13 | -17 | -10 | -2 |
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. Arcachon trends → · Crested Butte trends →
Methodology & sources
Arcachon
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Bordeaux Merignac, a weather station, about 41 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.
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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