Spring (March–May): Average -17.2–8.5°C, cold climate, still icy and snowy, but gradually warming with longer daylight hours. Common activities: Northern Lights viewing (less chance), snow activities (e.g., snowshoeing). Recommended clothing: warm jacket, hat, gloves, scarf, waterproof snow boots.
Summer (June–August): Average 14.6–18.6°C, mild climate, the warmest season in Yellowknife, but with a large diurnal temperature range. Common activities: boating, fishing, hiking, Northern Lights viewing (evenings). Recommended clothing: light jacket, long-sleeved shirt, long pants, comfortable shoes.
Autumn (September–November): Average 10.6–-10.9°C, climate rapidly cooling, higher rainfall, possible snowfall. Common activities: fall foliage viewing (limited opportunity), bird watching. Recommended clothing: warm jacket, sweater, waterproof jacket, comfortable shoes.
Winter (December–February): Average -19.1–-24.9°C, severely cold climate, frequent snowfall, short daylight hours. Common activities: snowmobiling, ice fishing, Northern Lights viewing (best viewing season). Recommended clothing: heavy down jacket, warm underwear, hat, gloves, scarf, waterproof snow boots.