Great Bear Lake - Climate

Climate

Great Bear Lake is covered with ice from late November to July. Between 1950 and 1974, this climatic data set was collected at Port Radium:

Climate data for Port Radium (temperature & precipitation), Norman Wells (sunshine)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Daily mean °C (°F) −27
(−16.6)
−27
(−16.6)
−19.1
(−2.4)
−10.7
(12.7)
1.2
(34.2)
9.0
(48.2)
12.0
(53.6)
10.6
(51.1)
5.3
(41.5)
−3.2
(26.2)
−14.8
(5.4)
−23
(−9.4)
−7.2
(19.0)
Precipitation mm (inches) 11
(0.43)
8
(0.31)
14
(0.55)
6
(0.24)
14
(0.55)
14
(0.55)
35
(1.38)
43
(1.69)
25
(0.98)
27
(1.06)
25
(0.98)
14
(0.55)
236
(9.29)
Mean monthly sunshine hours 26.9 75.6 167.6 230.0 292.6 n/a n/a 238.0 126.1 53.7 n/a 7.3 n/a
Source #1: World Lakes Database
Source #2: Sunshine data from 1961-1990 Environment Canada
Geography of Canada portal

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