AZ — Arizona
AZ Extreme Heat Season Begins
Phoenix and Tucson regularly exceed 110°F from June through mid-September. Grand Canyon South Rim heat fatalities peak in this window. Hike above 6,000 ft or avoid daytime entirely.
AZ Monsoon Season Begins
Arizona monsoon season (Jul–Sep) brings sudden afternoon thunderstorms with flash flood risk in canyon country. The North Rim trail, Antelope Canyon, and Paria River corridor close on flash flood watches. Check forecasts daily.
AZ Elk Archery Season Opens
Arizona archery elk season begins in the Mogollon Rim and White Mountains units. Draw tags are coveted — if you drew, conditions in the ponderosa zones are typically excellent in late August.
AZ High Country Fall Season
Arizona's Mogollon Rim, White Mountains, and Flagstaff highlands enter fall — aspen gold plus cool temperatures. Ideal for dispersed camping and hiking above 7,000 ft before first snow.
🌎 Mountain West (All States)
Mountain West Wildflower Season
High country wildflowers peak across the Mountain West — Glacier NP beargrass, Maroon Bells columbine, Sawtooth lupine, and Wasatch Indian paintbrush. Elevations 8,000–12,000 ft peak July 1–20.
Mountain West Fire Season Peak
Fire season peaks across the Mountain West (July–August). Smoke from large fires in ID, MT, WY, and CO regularly affects air quality across all 8 states. Check AQI before strenuous outdoor activities.
Mountain West Avalanche Season Opens
Avalanche centers across the Mountain West begin daily forecasts — CAIC (CO), UAC (UT), GNFAC/WCMAC (MT), BTAC (WY/MT), SAC (ID). Never travel in avalanche terrain without checking the local forecast.
Mountain West Ski Season Opens
Resorts across CO, UT, WY, ID, and MT open their first lifts — typically Arapahoe Basin, Loveland, Snowbird, and Jackson Hole lead. Snowpack varies by range; check base depths before booking trips.