Local Rocky Mountain Climate
In the valley bottoms, summer high temperatures extend into the 70's and mid 80's, with cool evenings that can often dip into the 30's. Winter lows occasionally dip to minus 15 degrees, though daytime temperatures are often in the 20's to 30's. The relative humidity is quite low throughout the year. Much of the area and its recreation facilities lie at higher elevations where significantly lower temperatures and more precipitation can be expected. Afternoon summer thunderstorms are common. Snow is possible at any time of year in the highest elevations. The high elevation roads and trails are often not clear of snow until mid-July.
On average there are roughly 250 days of sunshine in Aspen. We always keep our fingers crossed that each of the other 115 days has snowfall…seriously!!!