Climate in Yellowknife

Yellowknife, Canada has a subarctic climate. The annual average temperature is about -2.1°C and the city receives roughly 599 mm of precipitation across 76 rainy days a year, with around 1462 hours of sunshine. The warmest month is Jul (highs near 16.9°C) and the coldest is Jan (lows near -21.1°C). These are deterministic, latitude- and region-based planning estimates — not a forecast or measured station data; check current conditions with an official meteorological service before travel.

Data year 2025; last updated 2026-05-16.

Yellowknife is classified as Subarctic. This reflects its annual temperature range and the seasonal pattern of its rainfall.

Yellowknife receives about 599 mm of precipitation a year over roughly 76 rainy days. The wettest month is Aug and the driest is Feb.

Yellowknife sees an estimated 1462 hours of sunshine a year, concentrated in the warmer months around Jul.

By temperature and rainfall, the most comfortable months in Yellowknife are Jul, Jun, Aug. Conditions vary year to year — verify with a current forecast before booking.

Yellowknife has a climate comfort score of 42/100, a challenging year-round climate by this measure. The score weights mild temperatures most, then rainfall balance, sunshine, low seasonality, and the absence of extreme winter cold or summer heat.