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⛰️ Idaho's Extremes: A Journey Through the Gem State's Highs, Lows, and Wild Temperatures

  • idavibe
  • Dec 11, 2025
  • 4 min read

Idaho, the Gem State, is often overlooked, but beneath its famous potatoes and rugged mountains lies a landscape of staggering extremes. From sky-piercing peaks to the deepest river canyons, and temperatures that swing wildly from scorching to chilling, Idaho holds records that tell a story of incredible natural diversity.


Join me as we explore the four cardinal points of extremity in Idaho: the highest peak, the lowest point, the hottest recorded temperature, and the coldest.


1. The Apex: Borah Peak (12,662 feet)

If you want to look down on the rest of Idaho, you must stand on Borah Peak.

Aerial view of snow-dusted mountains and valleys with rugged peaks and shadows at sunrise, creating a serene and majestic landscape.
MT. Borah, Challis Idaho

Rising to a formidable height of 12,662 feet (3,859 meters), Borah Peak is not just the tallest place in Idaho; it's a true alpine monarch. Located in the Lost River Range within the Challis National Forest, its ascent is a grueling yet rewarding challenge for mountaineers. In fact, it is classified as one of the most challenging state high points in the contiguous United States.

Mountain peaks reflected in a calm lake, surrounded by dense pine forests. Rocky shoreline in foreground. Cloudy sky adds a serene mood.
River of no return, Challis Idaho

Known locally as Mount Borah, the peak is a dramatic testament to the powerful forces that shaped Idaho, including the devastating 1983 Borah Peak earthquake that caused a section of the mountain to drop several feet, yet still leaving it the undisputed king.


🏔️ The Tallest Place: Borah Peak

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Notes / Draft Content

Headline

The Apex: Borah Peak (12,662 feet)


Location

Lost River Range, Challis National Forest


Elevation

12,662 feet (3,859 meters)


Boise Distance

262 miles / 5 hr, 18 min driving

A key takeaway for local readers.

Key Detail

Classified as one of the most challenging state high points in the contiguous U.S.



2. The Nadir: The Snake River in Lewiston (710 feet)

From the sky to the sea level, our journey takes us all the way down to the state's lowest point: the Snake River in Lewiston.

A large white cruise ship is docked by a crane near brown hills under a partly cloudy sky. The water reflects the serene scene.
The Port of Lewiston Idaho

Here, the majestic Snake River, which carves Hells Canyon (the deepest river gorge in North America), flows at a mere 710 feet (216 meters) above sea level. This low-lying area, near the confluence of the Snake and Clearwater Rivers, holds a unique distinction: it is the most inland port on the West Coast.



A boat speeds down a river flanked by rocky hills under a bright blue sky with fluffy clouds, creating a dynamic and adventurous mood.
Hells Canyon Idaho

Standing here, in the heart of the Palouse country, you feel the contrast of the landscape—a warm, fertile river valley, a world away from the frigid, high-altitude peaks of the Lost River Range.


🌊 The Lowest Place: Lewiston

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Headline

The Nadir: The Snake River in Lewiston (710 feet)


Location

Snake River near the confluence with the Clearwater River


Elevation

710 feet (216 meters) above sea level


Boise Distance

272 miles / 5 hr, 25 min driving


Key Detail

Site of the most inland port on the West Coast.



3. The Inferno: Orofino's Scorcher (118°F)

Idaho is known for its cold winters, but don't let that fool you.

Misty forest with autumn colors surrounds a winding road and river. Cloudy sky adds a serene, tranquil mood to the landscape.
Orofino Idaho

The summers can be brutal, and one day in the small town of Orofino will forever hold the record for the state's highest temperature.

Small town street lined with brick buildings and parked cars. Signs read "Clearwater Club," "Rex," and "Krystal Cafe." Lush trees in background.
Downtown Orofino Idaho

On July 28, 1934, the thermometer in Orofino climbed to a sweltering 118°F (48°C). Imagine the heat in the deep canyons carved by the Clearwater River, where Orofino sits. This kind of intense, dry heat is a characteristic of Idaho's basin and valley regions during the peak of summer, turning the arid landscapes into an oven.

🔥 The Hottest Place: Orofino

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Headline

The Inferno: Orofino's Scorcher (118°F)


Location

Orofino, Idaho


Record Temp. & Date

118°F (48°C), recorded July 28, 1934


Boise Distance

256 miles / 5 hr, 16 min driving


Key Detail

Located in the deep canyons of the Clearwater River, prone to intense, trapped summer heat.



4. The Deep Freeze: Island Park Dam's Chill (-60°F)

Now, brace yourself for the other end of the thermometer!

Waterfall cascading into a river, surrounded by lush green cliffs and autumn foliage. The scene is serene and vibrant.
Upper and Lower Mesa Falls, Island Park Idaho

Idaho can be an icebox, and nowhere was this more apparent than at Island Park Dam.

Hand holding a colorful fish against a backdrop of a lake with snowy mountains. Bright sky and serene mood.
Trout out of Henry's Lake State Park, Island Park Idaho

On January 16, 1943, a bone-chilling temperature of -60°F (-51°C) was officially recorded. Located in the eastern part of the state, near the border with Montana and Wyoming, Island Park is situated on a high plateau. This region is notorious for its severe cold, often trapping frigid arctic air masses, especially in the deep, snow-covered valleys near the mountains.


🥶 The Coldest Place: Island Park Dam

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Notes / Draft Content

Headline

The Deep Freeze: Island Park Dam's Chill (-60°F)


Location

Island Park Dam, Eastern Idaho


Record Temp. & Date

-60°F (-51°C), recorded January 16, 1943


Boise Distance

360 miles / 5 hr, 10 min driving


Key Detail

Situated on a high plateau, notorious for trapping frigid arctic air masses.



❄️ Conclusion

Idaho is a land defined by its dramatic contours and climatic extremes. In a single state, you can find the high-altitude, sub-arctic cold of the Island Park region and the sun-baked heat of Orofino, all while crossing from the low, navigable waters of Lewiston to the dizzying heights of Borah Peak.


It's a testament to the raw, untamed nature of the American West—a place that pushes boundaries and rewards those who venture to its extremes. Dont forget to Subscribe to IdaVibe Newsletter! and Follow us on Facebook! Follow on Facebook!


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