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Siem Reap vs Crested Butte
Comparing Siem Reap change · Crested Butte change
Siem Reap is the warmer of the two — about 26°C on the annual average; Siem Reap is the wetter, with 882 mm more rain a year, and Crested Butte the sunnier.
How the seasons compare
The differences between Siem Reap and Crested Butte, in everyday terms.
Summers
Siem Reap has far hotter summers
Siem Reap: Very hot
Crested Butte: Mild
Winters
Siem Reap has far milder winters
Siem Reap: Stays warm
Crested Butte: Bitterly cold
Rain & snow
Siem Reap is much wetter
Siem Reap: Wet
Crested Butte: Moderate rainfall
Sky
Crested Butte is sunnier
Siem Reap: Often cloudy
Crested Butte: Partly cloudy
Month-by-month charts
Temperature
Siem Reap is the warmer of the two — about 26°C on the annual average.
Precipitation
Siem Reap is the wetter — about 882 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) Siem Reap runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Siem Reap | 31 | 33 | 35 | 36 | 35 | 34 | 33 | 32 | 32 | 31 | 31 | 30 |
| Crested Butte | -3 | -1 | 4 | 8 | 15 | 21 | 25 | 23 | 19 | 13 | 4 | -3 |
| Difference | -34 | -35 | -32 | -28 | -20 | -12 | -8 | -9 | -13 | -19 | -27 | -33 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Siem Reap | 31 | 33 | 35 | 36 | 35 | 34 |
| Crested Butte | -3 | -1 | 4 | 8 | 15 | 21 |
| Difference | -34 | -35 | -32 | -28 | -20 | -12 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Siem Reap | 33 | 32 | 32 | 31 | 31 | 30 |
| Crested Butte | 25 | 23 | 19 | 13 | 4 | -3 |
| Difference | -8 | -9 | -13 | -19 | -27 | -33 |
Avg low (°C) Siem Reap runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Siem Reap | 18 | 20 | 23 | 25 | 25 | 25 | 25 | 24 | 24 | 23 | 21 | 18 |
| Crested Butte | -21 | -19 | -14 | -7 | -2 | 1 | 4 | 4 | -0 | -6 | -13 | -20 |
| Difference | -39 | -39 | -37 | -32 | -27 | -24 | -20 | -21 | -25 | -29 | -33 | -38 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Siem Reap | 18 | 20 | 23 | 25 | 25 | 25 |
| Crested Butte | -21 | -19 | -14 | -7 | -2 | 1 |
| Difference | -39 | -39 | -37 | -32 | -27 | -24 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Siem Reap | 25 | 24 | 24 | 23 | 21 | 18 |
| Crested Butte | 4 | 4 | -0 | -6 | -13 | -20 |
| Difference | -20 | -21 | -25 | -29 | -33 | -38 |
Precipitation (mm) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Siem Reap | 7 | 11 | 56 | 81 | 202 | 199 | 223 | 254 | 302 | 106 | 30 | 13 |
| Crested Butte | 69 | 65 | 54 | 51 | 38 | 24 | 50 | 50 | 49 | 43 | 51 | 57 |
| Difference | +62 | +54 | -3 | -30 | -163 | -175 | -172 | -204 | -253 | -63 | +21 | +44 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Siem Reap | 7 | 11 | 56 | 81 | 202 | 199 |
| Crested Butte | 69 | 65 | 54 | 51 | 38 | 24 |
| Difference | +62 | +54 | -3 | -30 | -163 | -175 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Siem Reap | 223 | 254 | 302 | 106 | 30 | 13 |
| Crested Butte | 50 | 50 | 49 | 43 | 51 | 57 |
| Difference | -172 | -204 | -253 | -63 | +21 | +44 |
Snowfall (cm)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Siem Reap | — | — | — | — | — | — | — | — | — | — | — | — |
| Crested Butte | 106 | 90 | 69 | 46 | 17 | 1 | 0 | 0 | 3 | 20 | 66 | 88 |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Siem Reap | — | — | — | — | — | — |
| Crested Butte | 106 | 90 | 69 | 46 | 17 | 1 |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Siem Reap | — | — | — | — | — | — |
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Siem Reap | 36 | 40 | 53 | 66 | 79 | 85 | 87 | 89 | 88 | 69 | 50 | 42 |
| Crested Butte | 54 | 60 | 60 | 63 | 61 | 46 | 57 | 58 | 46 | 44 | 49 | 54 |
| Difference | +18 | +20 | +7 | -3 | -18 | -39 | -30 | -31 | -42 | -25 | -1 | +12 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Siem Reap | 36 | 40 | 53 | 66 | 79 | 85 |
| Crested Butte | 54 | 60 | 60 | 63 | 61 | 46 |
| Difference | +18 | +20 | +7 | -3 | -18 | -39 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Siem Reap | 87 | 89 | 88 | 69 | 50 | 42 |
| Crested Butte | 57 | 58 | 46 | 44 | 49 | 54 |
| Difference | -30 | -31 | -42 | -25 | -1 | +12 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Siem Reap | 55 | 49 | 50 | 59 | 74 | 83 | 86 | 88 | 89 | 86 | 79 | 66 |
| Crested Butte | 91 | 94 | 89 | 76 | 64 | 52 | 56 | 59 | 57 | 63 | 77 | 89 |
| Difference | +36 | +45 | +39 | +17 | -10 | -32 | -30 | -29 | -32 | -24 | -3 | +22 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Siem Reap | 55 | 49 | 50 | 59 | 74 | 83 |
| Crested Butte | 91 | 94 | 89 | 76 | 64 | 52 |
| Difference | +36 | +45 | +39 | +17 | -10 | -32 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Siem Reap | 86 | 88 | 89 | 86 | 79 | 66 |
| Crested Butte | 56 | 59 | 57 | 63 | 77 | 89 |
| Difference | -30 | -29 | -32 | -24 | -3 | +22 |
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. Siem Reap trends → · Crested Butte trends →
Methodology & sources
Siem Reap
Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Surin, a weather station, about 174 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 Siem Reap · change Crested Butte → · Siem Reap page · Crested Butte page