Home › Compare › Perth vs Crested Butte
Perth vs Crested Butte
Comparing Perth change · Crested Butte change
Perth is the warmer of the two — about 18°C on the annual average; Perth is the wetter, with 123 mm 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 18°C on the annual average.
Precipitation
Perth is the wetter — about 123 mm 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 (°C) Perth runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Perth | 31 | 32 | 30 | 26 | 22 | 20 | 18 | 19 | 20 | 23 | 27 | 29 |
| Crested Butte | -3 | -1 | 4 | 8 | 15 | 21 | 25 | 23 | 19 | 13 | 4 | -3 |
| Difference | -34 | -33 | -26 | -18 | -8 | +2 | +6 | +4 | -1 | -11 | -22 | -32 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Perth | 31 | 32 | 30 | 26 | 22 | 20 |
| Crested Butte | -3 | -1 | 4 | 8 | 15 | 21 |
| Difference | -34 | -33 | -26 | -18 | -8 | +2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Perth | 18 | 19 | 20 | 23 | 27 | 29 |
| Crested Butte | 25 | 23 | 19 | 13 | 4 | -3 |
| Difference | +6 | +4 | -1 | -11 | -22 | -32 |
Avg low (°C) Perth runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Perth | 18 | 18 | 17 | 14 | 10 | 9 | 8 | 8 | 10 | 12 | 14 | 16 |
| Crested Butte | -21 | -19 | -14 | -7 | -2 | 1 | 4 | 4 | -0 | -6 | -13 | -20 |
| Difference | -39 | -37 | -30 | -21 | -13 | -8 | -4 | -5 | -10 | -17 | -27 | -36 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Perth | 18 | 18 | 17 | 14 | 10 | 9 |
| Crested Butte | -21 | -19 | -14 | -7 | -2 | 1 |
| Difference | -39 | -37 | -30 | -21 | -13 | -8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Perth | 8 | 8 | 10 | 12 | 14 | 16 |
| Crested Butte | 4 | 4 | -0 | -6 | -13 | -20 |
| Difference | -4 | -5 | -10 | -17 | -27 | -36 |
Precipitation (mm) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Perth | 19 | 13 | 20 | 35 | 88 | 127 | 142 | 125 | 83 | 37 | 24 | 10 |
| Crested Butte | 69 | 65 | 54 | 51 | 38 | 24 | 50 | 50 | 49 | 43 | 51 | 57 |
| Difference | +50 | +51 | +34 | +16 | -49 | -103 | -92 | -74 | -34 | +6 | +26 | +47 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Perth | 19 | 13 | 20 | 35 | 88 | 127 |
| Crested Butte | 69 | 65 | 54 | 51 | 38 | 24 |
| Difference | +50 | +51 | +34 | +16 | -49 | -103 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Perth | 142 | 125 | 83 | 37 | 24 | 10 |
| Crested Butte | 50 | 50 | 49 | 43 | 51 | 57 |
| Difference | -92 | -74 | -34 | +6 | +26 | +47 |
Snowfall (cm)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Perth | — | — | — | — | — | — | — | — | — | — | — | — |
| Crested Butte | 106 | 90 | 69 | 46 | 17 | 1 | 0 | 0 | 3 | 20 | 66 | 88 |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Perth | — | — | — | — | — | — |
| Crested Butte | 106 | 90 | 69 | 46 | 17 | 1 |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Perth | — | — | — | — | — | — |
| Crested Butte | 0 | 0 | 3 | 20 | 66 | 88 |
| 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