Humphreys Peak is a bucket list challenge for many Arizona hikers. At 12,633 feet above sea level, it’s not only the tallest peak in the San Francisco Peaks range, but also the highest point in the entire state of Arizona.
While the mileage might not seem extreme at first glance, this trail is deceptively tough. With a combination of steep elevation gain, relentless switchbacks, and multiple false summits, it can be mentally and physically demanding.
We know firsthand since it took us two separate attempts to reach the summit.
Between those two experiences, we learned a lot about:
When to hike Humphreys Peak
What to expect on the trail
How to prepare for high elevation and unpredictable weather
Our first attempt in June 2020 ended in a turnaround. But on our second try in October 2021, we made it to the top and we’re sharing everything we wish we had known the first time.
It took us just over 6 hours roundtrip to complete Humphreys Peak. Our tracking stats differed slightly from what’s listed on AllTrails, so we recommend checking both and using them as rough estimates. Conditions and pace can vary!
Please remember to Leave No Trace while hiking Humphreys Peak. The trail enters the Kachina Wilderness, and drones are prohibited.
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Quick Stats:
Length:
11.25 miles
Route Type:
Out and back
Elevation Gain:
3,235 ft
Vaulted Toilets:
Yes
Dog Friendly:
Yes
Fee:
No
Difficulty:
Difficult
Water:
No water at trailhead
Best Time to Hike Humphreys Peak
When planning your Humphreys Peak hike, timing is everything. There are typically two main hiking windows, both depending heavily on snow and trail conditions:
Late May to mid-to-late June
Before Arizona’s monsoon season beginsMid-to-late September through early November
After monsoon season and before consistent snowstorms hit
Avoid hiking in peak summer months (July to early September) due to frequent afternoon thunderstorms, and steer clear in winter unless you’re prepared for snow hiking and icy conditions.
Weather Considerations for Humphreys Peak
Always check the weather forecast before you hike Humphreys Peak. The summit is completely exposed above the treeline.
In summer, afternoon thunderstorms are common in the Flagstaff area. But on the mountain, they’re even more intense due to its high elevation and proximity to cloud systems. Storms often get “stuck” over the San Francisco Peaks, increasing the risk for hikers caught above treeline.
Important Safety Note: Never shelter under a lone tree during a lightning storm. Instead, descend below treeline quickly and seek lower ground, away from ridgelines, open areas, or isolated trees.
Our first attempt at the hike in June 2020 ended just above the treeline. The winds were so strong, we were literally crawling. If we had checked a summit-specific forecast, we would’ve known to reschedule.
Now, we use Mountain-Forecast.com to check wind, storm, and temperature predictions for the summit before any alpine hike.
What to Expect on Humphreys Peak Trail
Humphreys Peak begins at the Arizona Snowbowl ski resort, using the same parking lot. To be closest to the trailhead, park on the east end of the lot. The starting elevation is ~9,000 feet above sea level!
From the start, you’ll cross an open ski run field before entering a dense pine forest. Soon after, the trail enters the Kachina Wilderness Area, where drones, mountain bikes, and motorized vehicles are prohibited.
Forest Section & Trail Conditions
Once in the forest, the trail climbs steadily through a series of switchbacks. It’s well-shaded but rooty and uneven—there are large tree roots across many sections, so watch your footing to avoid tripping.
Along the way, you’ll pass:
Scenic viewpoints of surrounding peaks
Exposed rockslide areas on the mountain’s slope
Potential mud or snow patches, especially in early summer or late fall
If you’re hiking during shoulder seasons, we highly recommend trekking poles and crampons. Snow on this trail compacts quickly and can get slippery fast.
The Treeline
As you gain elevation, you’ll notice the forest begin to thin. The treeline is dramatic and obvious. Trees stop suddenly and the landscape becomes completely exposed. From this point forward, you’ll be fully vulnerable to sun, wind, and weather.
This transition marks the start of the most exposed and demanding part of the Humphreys Peak hike.
Above the Treeline: Saddle & False Summits
Once you break through the treeline, you’ll reach a saddle just below the summit. Here, the trail turns left and begins to follow the ridge, skirting along the side of the mountain and climbing toward the summit of Humphreys Peak.
This final stretch includes several false summits. You’ll think you’re almost there multiple times, only to realize there’s still more climbing ahead. It can definitely feel mentally challenging, especially in windy or exposed conditions.
The trail is mostly easy to follow, but snowpack at the top can obscure the route.
In snowy or icy conditions, use caution and allow extra time to navigate safely.
The entire hike features a steady incline, with only a few brief, flatter sections to catch your breath.
Take your time, pace yourself, and don’t underestimate how tough the final stretch to Humphreys Peak can feel—even if you’re close to the top.
What to Bring for Hiking Humphreys Peak
- Hiking Poles
- Plenty of water (3L)
- Optional microspikes
- Warm layers depending on the weather. The summit can be quite different from the base and Flagstaff
- Windbreaker (we recommend the Houdini jacket by Patagonia. We have a similar one that packs down and easily fits in your pack when you don’t need it
- Beanie
- Insulated Jacket
- Supportive hiking boots or trail running shoes if you’re more comfortable in those. We are big fans of Salomon boots. If there is some snow on the trail GORE-TEXT boots could be helpful. Not sure what hiking boots are best for you? Check out our blog post on how to pick the right hiking boots.
- Regular running shoes or tennis shoes are not recommended
- Sun protection: Horizon Breeze Brimmer Hat
- Snacks!!! Replenish the calories burned
- Hiking Pack: we like our Osprey Tempest & Talon because they hold 3L water reservoirs, can hold our poles, they have space layering pieces, and they have hip belts for easy access to snacks.
- Check out our full gear guide here
How to Prepare to Hike Humphreys Peak
Hiking to the summit of Humphreys Peak is both mentally and physically challenging, especially if you’re not used to high elevation. Coming from the low desert (like us from “the Valley”) can make the altitude feel even more intense.
Acclimate to the Elevation
If you’re visiting from a lower elevation, we recommend staying in Flagstaff the night before your hike. Even 12–24 hours can help your body start adjusting to the 9,000+ ft elevation you’ll experience from the trailhead to the summit.
Train for the Trail
This hike features a steady uphill climb nearly the entire way, with few breaks in elevation. To prepare, we suggest training on:
Steep local trails
Routes that mimic the mileage (11–12 miles roundtrip)
Elevation gain of 3,000+ feet if possible
Knowing you’ve done similar distance and elevation beforehand can help you feel more confident on the trail.
Don’t Forget the Downhill
While the climb is tough, the descent can be just as hard on your knees, especially with the uneven trail and long mileage.
To build strength and protect your joints, we recommend:
Step-ups or box steps
Stair machine or hill repeats
Squats, lunges, and deadlifts
Trekking poles to reduce downhill impact
Looking to Explore More Around Flagstaff?
If you’ve conquered the summit of Humphreys Peak and are hungry for more adventures, Flagstaff has plenty to offer. From scenic forest trails to a lively downtown filled with great food, coffee, and breweries, it’s the perfect place to round out your trip. Be sure to check out our full Flagstaff Guide for the best hikes, places to eat, and things to do while you’re in town.
