Mackenzie River Basin Rainfall for December 1985 - 1999

The northern month of the river receives very little rainfall with the upper headwaters receiving slightly more. Rainfall in this area mainly falls as snow which over time acts as a store of fresh water. Only in the spring when ice break-up occurs and snow melts is the majority of the fresh water released. This is a clear example that this river is very dependent on snow melt to maintain river flow. The permafrost also acts to lock water in the soil. The river channels are generally shallow and freight is carried on flat bottom barges. The majority of goods are transported northwards during the few months when navigation is possible.

Average Total Rainfall (mm/yr)

Bargraph referencing the colours on the rainfall maps.

Other Mackenzie Maps

Mackenzie Rainfall Maps