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Perth vs Crested Butte
Comparing Perth change · Crested Butte change
Perth is the warmer of the two — about 32°F on the annual average; Perth is the wetter, with 5 in more rain a year, and Perth the sunnier.
How the seasons compare
The differences between Perth and Crested Butte, in everyday terms.
Summers
Perth has much hotter summers
Perth: Hot
Crested Butte: Mild
Winters
Perth has far milder winters
Perth: Cool
Crested Butte: Bitterly cold
Rain & snow
Perth is wetter
Perth: Moderate rainfall
Crested Butte: Moderate rainfall
Sky
Perth is sunnier
Perth: Fairly sunny
Crested Butte: Partly cloudy
Month-by-month charts
Temperature
Perth is the warmer of the two — about 32°F on the annual average.
Precipitation
Perth is the wetter — about 5 in more across the year.
Clear skies
Perth 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) Perth runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Perth | 88 | 89 | 85 | 79 | 72 | 67 | 65 | 66 | 69 | 74 | 80 | 85 |
| Crested Butte | 26 | 30 | 38 | 47 | 58 | 71 | 76 | 74 | 66 | 55 | 40 | 27 |
| Difference | -62 | -59 | -47 | -32 | -14 | +3 | +11 | +7 | -2 | -20 | -40 | -58 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Perth | 88 | 89 | 85 | 79 | 72 | 67 |
| Crested Butte | 26 | 30 | 38 | 47 | 58 | 71 |
| Difference | -62 | -59 | -47 | -32 | -14 | +3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Perth | 65 | 66 | 69 | 74 | 80 | 85 |
| Crested Butte | 76 | 74 | 66 | 55 | 40 | 27 |
| Difference | +11 | +7 | -2 | -20 | -40 | -58 |
Avg low (°F) Perth runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Perth | 65 | 65 | 62 | 57 | 51 | 48 | 46 | 47 | 49 | 53 | 58 | 62 |
| Crested Butte | -6 | -2 | 7 | 19 | 28 | 34 | 39 | 39 | 31 | 22 | 9 | -4 |
| Difference | -71 | -67 | -55 | -37 | -23 | -14 | -7 | -8 | -18 | -31 | -48 | -65 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Perth | 65 | 65 | 62 | 57 | 51 | 48 |
| Crested Butte | -6 | -2 | 7 | 19 | 28 | 34 |
| Difference | -71 | -67 | -55 | -37 | -23 | -14 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Perth | 46 | 47 | 49 | 53 | 58 | 62 |
| Crested Butte | 39 | 39 | 31 | 22 | 9 | -4 |
| Difference | -7 | -8 | -18 | -31 | -48 | -65 |
Precipitation (in) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Perth | 0.8 | 0.5 | 0.8 | 1.4 | 3.5 | 5 | 5.6 | 4.9 | 3.3 | 1.5 | 1 | 0.4 |
| Crested Butte | 2.7 | 2.5 | 2.1 | 2 | 1.5 | 0.9 | 2 | 2 | 1.9 | 1.7 | 2 | 2.3 |
| Difference | +2 | +2 | +1.3 | +0.6 | -1.9 | -4.1 | -3.6 | -2.9 | -1.3 | +0.2 | +1 | +1.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Perth | 0.8 | 0.5 | 0.8 | 1.4 | 3.5 | 5 |
| Crested Butte | 2.7 | 2.5 | 2.1 | 2 | 1.5 | 0.9 |
| Difference | +2 | +2 | +1.3 | +0.6 | -1.9 | -4.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Perth | 5.6 | 4.9 | 3.3 | 1.5 | 1 | 0.4 |
| Crested Butte | 2 | 2 | 1.9 | 1.7 | 2 | 2.3 |
| Difference | -3.6 | -2.9 | -1.3 | +0.2 | +1 | +1.8 |
Snowfall (in)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Perth | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 |
|---|---|---|---|---|---|---|
| Perth | — | — | — | — | — | — |
| Crested Butte | 41.7 | 35.3 | 27.3 | 18 | 6.9 | 0.3 |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Perth | — | — | — | — | — | — |
| Crested Butte | 0 | 0 | 1 | 8.1 | 26.1 | 34.6 |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Perth | 34 | 36 | 40 | 50 | 54 | 58 | 59 | 57 | 54 | 46 | 44 | 36 |
| Crested Butte | 54 | 60 | 60 | 63 | 61 | 46 | 57 | 58 | 46 | 44 | 49 | 54 |
| Difference | +21 | +24 | +19 | +13 | +7 | -12 | -2 | +1 | -8 | -3 | +5 | +18 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Perth | 34 | 36 | 40 | 50 | 54 | 58 |
| Crested Butte | 54 | 60 | 60 | 63 | 61 | 46 |
| Difference | +21 | +24 | +19 | +13 | +7 | -12 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Perth | 59 | 57 | 54 | 46 | 44 | 36 |
| Crested Butte | 57 | 58 | 46 | 44 | 49 | 54 |
| Difference | -2 | +1 | -8 | -3 | +5 | +18 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Perth | 64 | 64 | 66 | 68 | 69 | 72 | 73 | 74 | 74 | 73 | 70 | 65 |
| Crested Butte | 91 | 94 | 89 | 76 | 64 | 52 | 56 | 59 | 57 | 63 | 77 | 89 |
| Difference | +27 | +29 | +24 | +8 | -5 | -20 | -18 | -15 | -17 | -11 | +7 | +24 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Perth | 64 | 64 | 66 | 68 | 69 | 72 |
| Crested Butte | 91 | 94 | 89 | 76 | 64 | 52 |
| Difference | +27 | +29 | +24 | +8 | -5 | -20 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Perth | 73 | 74 | 74 | 73 | 70 | 65 |
| Crested Butte | 56 | 59 | 57 | 63 | 77 | 89 |
| Difference | -18 | -15 | -17 | -11 | +7 | +24 |
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. Perth trends → · Crested Butte trends →
Methodology & sources
Perth
Temperature & precipitation — 1991–2020 normals computed from 27 years of daily observations at Perth Metro, a weather station, about 4 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.
← change Perth · change Crested Butte → · Perth page · Crested Butte page