High lakes do not open up until early or mid-June. June is normally a wet month. Snow still covers high, shaded basins and surrounds trees. July, August, and early September are dry months. Daytime temperatures are the 80-90 degree range.
Showers are frequent.
Nights are very cool. Snow occur at any time. Heavy snow generally occurs in late October and early November. If you are a skier or winter camper, late February through May provide the best snow conditions and longer days. When planning an extended backcountry trip, be informed of potential avalanche conditions.