Klamath Falls (elevation 4,098 ft / 1,249 m) has a semi-arid (BSk) climate—rare for Oregon.
| Season | Avg High / Low | Precip | Notes |
|---|---|---|---|
| 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°F | Moderate | Windy; wildflower blooms |
| Summer (Jun–Aug) | 82°F / 45°F → 88°F / 50°F | Very low | Hot days, cool nights; <1" rain |
| Fall (Sep–Nov) | 75°F / 42°F → 50°F / 28°F | Low | Crisp, clear; first frosts Oct |
Result: sunny, dry, large diurnal swings. Ideal for outdoor recreation, astronomy, and specialty agriculture (potatoes, mint, horseradish).