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Climate & Geography

You’ll experience all four seasons in Southern Idaho. Everything from snowy winters to sun-dappled autumns to vibrant springs to dry, warm summers. Our semi-arid climate offers plenty of sunshine year-round. The Southern Idaho Climate is a great mix of seasons.

Our amazing high-desert geography is lined with deep canyons, rolling hills, ancient volcanic formations, and geology that attracts enthusiasts from around the world. Southern Idaho is criss-crossed by the Snake River and its many tributaries, offering fine fishing and water sports opportunities.

Average temperature in JanuaryHigh: 37.8° F – Low: 21° F
Average temperature in JulyHigh: 88.6° F – Low: 56.3° F
Hottest & driest monthJuly
Coldest & wettest monthDecember
Annual Precipitation9.37″
Annual Snowfall11.7″
Elevation3,747′

ADVENTURE
MAP

Use our Adventure Map to plan your next Southern Idaho getaway! View all of our Scenic Byways, explore our local attractions, and check out our lodging, camping, and RV availability.

VIEW ADVENTURE MAP »

AUTHENTIC
IDAHO TRAVEL

Family-friendly exploring or daredevil sports? Serene, soothing hot springs or raging rapids? Whatever your pleasure, we have an authentic adventure for you here in Southern Idaho! Use our complimentary travel guide to plan your perfect escape.

GET YOUR FREE TRAVEL GUIDE »