Climate Chart of Yellowknife, Canada

Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023

Climate overview

Temperature

Monthly mean temperatures range from a low of -24.5 °C in February to a high of 17.5 °C in July. These are averages for each month, not daytime maximum temperatures, so they describe the broad temperature pattern rather than the full range visitors may encounter during a day. The unweighted mean of the monthly means is -3.5 °C; it summarizes the calendar-month means without weighting them by the number of days in each month.

Snow

Mean daily snowfall is highest in November, at 4.82 mm/day; the unweighted mean across the monthly means is 2.00 mm/day. These are average daily amounts, not monthly totals. They do not establish how many days have snowfall, snow depth or snow cover, and cannot determine whether conditions suit skiing.

Sunshine

Mean daily sunshine duration reaches its highest monthly average in June at 13.74 hours/day, and its lowest in December at 1.17 hours/day. These averages can help with planning for daylight outdoor activities, but sunshine duration is not the same as day length. The unweighted mean across the monthly means is 7.72 hours/day.

Rain

Mean daily rainfall is lowest in January / February, at 0.00 mm/day, and reaches its highest monthly mean in August, at 1.55 mm/day. The low figure is a rounded average and does not guarantee rain-free days or show how often rain occurs. These are daily means, not monthly rainfall totals; the unweighted mean across the monthly means is 0.50 mm/day.

Best Travel Time Guide for Yellowknife, Canada: Ideal Seasons and Weather Insights

For visitors prioritising cooler monthly mean temperatures, February is the relevant option, with a monthly mean of -24.5 °C. Treat that average as a guide to the month rather than a prediction of daytime highs or conditions on a particular date; check forecasts close to travel and prepare for cold weather. If lower average rainfall is a priority, January / February is the conditional option: its mean daily rainfall is 0.00 mm/day. That average does not guarantee dry days or indicate rain frequency. In August, the highest monthly mean daily rainfall is 1.55 mm/day, so visitors may wish to pack rain protection; neither figure is a monthly total.

For daylight outdoor planning, mean daily sunshine peaks in June at 13.74 hours/day, while the lowest mean is in December at 1.17 hours/day. These figures describe sunshine duration, not day length, and do not promise clear conditions on an individual day. The temperature, rainfall and sunshine criteria point to different considerations rather than one universal best time to visit. Mean daily snowfall is highest in November, at 4.82 mm/day. This average alone cannot tell you how often snow falls, whether snow cover will be present, or what conditions will be like for winter activities; check current local conditions when planning.

Climate Data Overview for Yellowknife, Canada

Explore the comprehensive climate data for Yellowknife, Canada. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.

• See also climate change in Yellowknife
• Explore the climate in Canada