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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 47°F on the annual average; San Juan is the wetter, with 36 in 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 47°F on the annual average.
Precipitation
San Juan is the wetter — about 36 in 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 (°F) San Juan runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Juan | 83 | 84 | 85 | 86 | 88 | 89 | 89 | 89 | 89 | 89 | 86 | 84 |
| Crested Butte | 26 | 30 | 38 | 47 | 58 | 71 | 76 | 74 | 66 | 55 | 40 | 27 |
| Difference | -57 | -54 | -46 | -40 | -29 | -18 | -12 | -16 | -23 | -34 | -46 | -57 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| San Juan | 83 | 84 | 85 | 86 | 88 | 89 |
| Crested Butte | 26 | 30 | 38 | 47 | 58 | 71 |
| Difference | -57 | -54 | -46 | -40 | -29 | -18 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| San Juan | 89 | 89 | 89 | 89 | 86 | 84 |
| Crested Butte | 76 | 74 | 66 | 55 | 40 | 27 |
| Difference | -12 | -16 | -23 | -34 | -46 | -57 |
Avg low (°F) San Juan runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Juan | 72 | 72 | 72 | 74 | 76 | 77 | 78 | 78 | 78 | 77 | 75 | 73 |
| Crested Butte | -6 | -2 | 7 | 19 | 28 | 34 | 39 | 39 | 31 | 22 | 9 | -4 |
| Difference | -78 | -73 | -65 | -55 | -48 | -44 | -38 | -39 | -46 | -55 | -66 | -77 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| San Juan | 72 | 72 | 72 | 74 | 76 | 77 |
| Crested Butte | -6 | -2 | 7 | 19 | 28 | 34 |
| Difference | -78 | -73 | -65 | -55 | -48 | -44 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| San Juan | 78 | 78 | 78 | 77 | 75 | 73 |
| Crested Butte | 39 | 39 | 31 | 22 | 9 | -4 |
| Difference | -38 | -39 | -46 | -55 | -66 | -77 |
Precipitation (in) San Juan runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Juan | 4.1 | 2.6 | 2.2 | 4.6 | 5.5 | 4.7 | 6 | 6.3 | 6.5 | 5.1 | 7.4 | 4.9 |
| Crested Butte | 2.7 | 2.5 | 2.1 | 2 | 1.5 | 0.9 | 2 | 2 | 1.9 | 1.7 | 2 | 2.3 |
| Difference | -1.3 | — | -0.1 | -2.6 | -4 | -3.7 | -4 | -4.3 | -4.6 | -3.4 | -5.4 | -2.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| San Juan | 4.1 | 2.6 | 2.2 | 4.6 | 5.5 | 4.7 |
| Crested Butte | 2.7 | 2.5 | 2.1 | 2 | 1.5 | 0.9 |
| Difference | -1.3 | — | -0.1 | -2.6 | -4 | -3.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| San Juan | 6 | 6.3 | 6.5 | 5.1 | 7.4 | 4.9 |
| Crested Butte | 2 | 2 | 1.9 | 1.7 | 2 | 2.3 |
| Difference | -4 | -4.3 | -4.6 | -3.4 | -5.4 | -2.6 |
Snowfall (in) 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 | 41.7 | 35.3 | 27.3 | 18 | 6.9 | 0.3 | 0 | 0 | 1 | 8.1 | 26.1 | 34.6 |
| Difference | +41.7 | +35.3 | +27.3 | +18 | +6.9 | +0.3 | — | — | +1 | +8.1 | +26.1 | +34.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| San Juan | 0 | 0 | 0 | 0 | 0 | 0 |
| Crested Butte | 41.7 | 35.3 | 27.3 | 18 | 6.9 | 0.3 |
| Difference | +41.7 | +35.3 | +27.3 | +18 | +6.9 | +0.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| San Juan | 0 | 0 | 0 | 0 | 0 | 0 |
| Crested Butte | 0 | 0 | 1 | 8.1 | 26.1 | 34.6 |
| Difference | — | — | +1 | +8.1 | +26.1 | +34.6 |
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.
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