Lake in Northwest Territories, NW Canada, on the Arctic Circle; 320 km/200 mi long; 40177 km/25110 mi wide; maximum depth 413 m/1356 ft; area 31 153 km²/12 025 sq mi; drained SW by the Great Bear R; navigable for only four months each year because of ice.
Climate
Between 1950 and 1974, this climatic data was collected at Port Radium:
| Month |
Temperature (°C) |
Precipitation (mm) |
Bright sunshine (hours) |
|---|---|---|---|
| Jan | –27.0 | 11 | 0.19 |
| Feb | –27.0 | 8 | 1.82 |
| Mar | –19.1 | 14 | 7.57 |
| Apr | –10.7 | 6 | 16.03 |
| May | +1.2 | 14 | 21.76 |
| Jun | +9.0 | 14 | 23.16 |
| Jul | +12.0 | 35 | 18.54 |
| Aug | +10.6 | 43 | 11.97 |
| Sep | +5.3 | 25 | 6.20 |
| Oct | –3.2 | 27 | 2.85 |
| Nov | –14.8 | 25 | 0.39 |
| Dec | –23.0 | 14 | 0.00 |
| Average | –7.2 | 10 | |
| Total | 236 |
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