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San Juan vs Crested Butte
Comparing San Juan change · Crested Butte change
San Juan is the warmer of the two — about 26°C on the annual average; San Juan is the wetter, with 914 mm more rain a year.
How the seasons compare
The differences between San Juan and Crested Butte, in everyday terms.
Summers
San Juan has much hotter summers
San Juan: Hot
Crested Butte: Mild
Winters
San Juan has far milder winters
San Juan: Stays warm
Crested Butte: Bitterly cold
Rain & snow
San Juan is much wetter
San Juan: Wet
Crested Butte: Moderate rainfall
Sky
Similar amounts of sun
San Juan: Partly cloudy
Crested Butte: Partly cloudy
Month-by-month charts
Temperature
San Juan is the warmer of the two — about 26°C on the annual average.
Precipitation
San Juan is the wetter — about 914 mm more across the year.
Clear skies
The two cities see a similar amount of sun.
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) San Juan runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Juan | 29 | 29 | 29 | 30 | 31 | 32 | 32 | 32 | 32 | 31 | 30 | 29 |
| Crested Butte | -3 | -1 | 4 | 8 | 15 | 21 | 25 | 23 | 19 | 13 | 4 | -3 |
| Difference | -32 | -30 | -26 | -22 | -16 | -10 | -7 | -9 | -13 | -19 | -26 | -32 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| San Juan | 29 | 29 | 29 | 30 | 31 | 32 |
| Crested Butte | -3 | -1 | 4 | 8 | 15 | 21 |
| Difference | -32 | -30 | -26 | -22 | -16 | -10 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| San Juan | 32 | 32 | 32 | 31 | 30 | 29 |
| Crested Butte | 25 | 23 | 19 | 13 | 4 | -3 |
| Difference | -7 | -9 | -13 | -19 | -26 | -32 |
Avg low (°C) San Juan runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Juan | 22 | 22 | 22 | 23 | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 23 |
| Crested Butte | -21 | -19 | -14 | -7 | -2 | 1 | 4 | 4 | -0 | -6 | -13 | -20 |
| Difference | -43 | -41 | -36 | -30 | -26 | -24 | -21 | -22 | -26 | -30 | -36 | -43 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| San Juan | 22 | 22 | 22 | 23 | 24 | 25 |
| Crested Butte | -21 | -19 | -14 | -7 | -2 | 1 |
| Difference | -43 | -41 | -36 | -30 | -26 | -24 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| San Juan | 25 | 25 | 25 | 25 | 24 | 23 |
| Crested Butte | 4 | 4 | -0 | -6 | -13 | -20 |
| Difference | -21 | -22 | -26 | -30 | -36 | -43 |
Precipitation (mm) San Juan runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Juan | 103 | 65 | 55 | 117 | 141 | 118 | 153 | 160 | 165 | 129 | 187 | 123 |
| Crested Butte | 69 | 65 | 54 | 51 | 38 | 24 | 50 | 50 | 49 | 43 | 51 | 57 |
| Difference | -34 | -1 | -2 | -66 | -102 | -94 | -103 | -110 | -116 | -85 | -136 | -66 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| San Juan | 103 | 65 | 55 | 117 | 141 | 118 |
| Crested Butte | 69 | 65 | 54 | 51 | 38 | 24 |
| Difference | -34 | -1 | -2 | -66 | -102 | -94 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| San Juan | 153 | 160 | 165 | 129 | 187 | 123 |
| Crested Butte | 50 | 50 | 49 | 43 | 51 | 57 |
| Difference | -103 | -110 | -116 | -85 | -136 | -66 |
Snowfall (cm) Crested Butte runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Juan | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Crested Butte | 106 | 90 | 69 | 46 | 17 | 1 | 0 | 0 | 3 | 20 | 66 | 88 |
| Difference | +106 | +90 | +69 | +46 | +17 | +1 | — | — | +3 | +20 | +66 | +88 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| San Juan | 0 | 0 | 0 | 0 | 0 | 0 |
| Crested Butte | 106 | 90 | 69 | 46 | 17 | 1 |
| Difference | +106 | +90 | +69 | +46 | +17 | +1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| San Juan | 0 | 0 | 0 | 0 | 0 | 0 |
| Crested Butte | 0 | 0 | 3 | 20 | 66 | 88 |
| Difference | — | — | +3 | +20 | +66 | +88 |
Cloud cover (%) San Juan runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Juan | 56 | 56 | 57 | 56 | 67 | 64 | 61 | 59 | 63 | 59 | 59 | 55 |
| Crested Butte | 54 | 60 | 60 | 63 | 61 | 46 | 57 | 58 | 46 | 44 | 49 | 54 |
| Difference | -1 | +5 | +3 | +7 | -6 | -18 | -4 | -1 | -17 | -16 | -10 | -1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| San Juan | 56 | 56 | 57 | 56 | 67 | 64 |
| Crested Butte | 54 | 60 | 60 | 63 | 61 | 46 |
| Difference | -1 | +5 | +3 | +7 | -6 | -18 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| San Juan | 61 | 59 | 63 | 59 | 59 | 55 |
| Crested Butte | 57 | 58 | 46 | 44 | 49 | 54 |
| Difference | -4 | -1 | -17 | -16 | -10 | -1 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Juan | 78 | 76 | 74 | 75 | 78 | 79 | 79 | 79 | 80 | 81 | 81 | 79 |
| Crested Butte | 91 | 94 | 89 | 76 | 64 | 52 | 56 | 59 | 57 | 63 | 77 | 89 |
| Difference | +14 | +18 | +15 | +1 | -13 | -28 | -23 | -20 | -23 | -18 | -4 | +9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| San Juan | 78 | 76 | 74 | 75 | 78 | 79 |
| Crested Butte | 91 | 94 | 89 | 76 | 64 | 52 |
| Difference | +14 | +18 | +15 | +1 | -13 | -28 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| San Juan | 79 | 79 | 80 | 81 | 81 | 79 |
| Crested Butte | 56 | 59 | 57 | 63 | 77 | 89 |
| Difference | -23 | -20 | -23 | -18 | -4 | +9 |
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. San Juan trends → · Crested Butte trends →
Methodology & sources
San Juan
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at San Juan L M Marin Intl AP, a weather station, about 11 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 San Juan · change Crested Butte → · San Juan page · Crested Butte page