Klamath Falls, Oregon Climate: Semi-Arid with Four Distinct Seasons

Klamath Falls (elevation 4,098 ft / 1,249 m) has a semi-arid (BSk) climate—rare for Oregon.

Seasonal Profile

SeasonAvg High / LowPrecipNotes
Winter (Dec–Feb)41°F / 22°F (5°C / -6°C)Low (snow)Mild for elevation; ~16" snow/yr
Spring (Mar–May)55°F / 30°F → 70°F / 38°FModerateWindy; wildflower blooms
Summer (Jun–Aug)82°F / 45°F → 88°F / 50°FVery lowHot days, cool nights; <1" rain
Fall (Sep–Nov)75°F / 42°F → 50°F / 28°FLowCrisp, clear; first frosts Oct

Why So Dry?

  • Rain shadow of Cascade Range (blocks Pacific moisture).
  • High elevation enhances cooling, reduces humidity.
  • Continentality—far from ocean.

Result: sunny, dry, large diurnal swings. Ideal for outdoor recreation, astronomy, and specialty agriculture (potatoes, mint, horseradish).

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