United States · 39.19°N 106.82°W · 30-year monthly averages, judged against the Warm preset (highs 19–28 °C66–82 °F, dry or showers)
The best time to visit Aspen is July to August, with highs of 20–21 °C68–70 °F and nights of 3 °C37 °F.
Aspen is dry all year: no month averages more than 56 mm2.2 in (July), and June gets 32 mm1.3 in. July is the hottest month (highs of 21 °C70 °F) and January the coldest (-2 °C28 °F); nights are below freezing from September to June.
The figures are 30-year monthly averages (WorldClim 2.1 monthly normals 1970–2000) for the 0.25° grid cell at 39.19, -106.82. This is a climate guide, not a forecast.
Pick the weather you like. Every month is then judged against it: temperature above the month names, rain below.
Good time to go for a Warm holiday: July to August.
Open Aspen on the interactive map ↗ the same verdicts for any place on Earth, in any month
Reading the chart. Gold means good: the month fits what you picked. Any other colour shows the reason it does not. The temperature bar can be too cold or too hot; the rain bar can be too dry, too rainy or monsoon. A faded gold bar means that half fits but the other half does not. A gold month name means both halves fit.
What the verdicts mean. Temperature is the month's average daily high (the afternoon), judged against the preset's band (highs 19–28 °C66–82 °F for Warm). Rain is judged by each month's class within Aspen's own year, not by raw millimetres: dry under 60 mm2.4 in, showers 60–100 mm2.4–3.9 in, rainy from 100 mm3.9 in and at least 35 % of the wettest month. Too rainy is a rainy-season month that the preset does not allow. Monsoon is the heaviest kind of rainy season: 180 mm7.1 in or more (120 mm4.7 in near the yearly peak) in a climate where the wettest month has at least three times the rain of the driest. Every monsoon month is also a rainy-season month; the label says which kind. Full rules on the method page.
| Month | Rain | High | Low | Season | Warm verdict |
|---|---|---|---|---|---|
| January | 481.9 | -228 | -18-1 | dry | too cold |
| February | 401.6 | 031 | -180 | dry | too cold |
| March | 481.9 | 236 | -155 | dry | too cold |
| April | 401.6 | 541 | -1013 | dry | too cold |
| May | 401.6 | 1151 | -424 | dry | too cold |
| June | 321.3 | 1762 | 031 | dry | too cold |
| July | 562.2 | 2170 | 337 | dry | good |
| August | 562.2 | 2068 | 337 | dry | good |
| September | 481.9 | 1762 | 031 | dry | too cold |
| October | 401.6 | 1151 | -522 | dry | too cold |
| November | 401.6 | 337 | -1210 | dry | too cold |
| December | 481.9 | -129 | -171 | dry | too cold |
| Looking for | Rule | Months that fit |
|---|---|---|
| Warm | highs 19–28 °C66–82 °F, dry or showers | July to August |
| Tropical | highs 28–38 °C82–100 °F, any rain except monsoon | |
| Beach | highs 28–38 °C82–100 °F, dry or showers | |
| Cool | highs 3–19 °C37–66 °F, any rain except monsoon | April to June and September to November |
| Snow | highs below 3 °C37 °F, any rain | December to March |
No. Aspen is dry all year: no month averages more than 56 mm2.2 in (July), and June gets 32 mm1.3 in.
July is the hottest month (highs of 21 °C70 °F) and January the coldest (-2 °C28 °F); nights are below freezing from September to June. Annual rainfall is about 536 mm21 in.
The nearest destinations that fit the Warm preset in the months when Aspen does not:
The interactive map colours the whole world by how well it fits the weather you like, in any month, and shows this chart for any place you tap.