Grimselsee (original) (raw)
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Artificial lake in the Canton of Bern, Switzerland
| Grimselsee Lake Grimsel | |
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  Grimselsee Lake GrimselShow map of Canton of Bern Grimselsee Lake GrimselShow map of Switzerland Grimselsee Lake GrimselShow map of Alps |
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| Location | Guttannen, Canton of Bern |
| Coordinates | 46°34′10.52″N 8°19′38.66″E / 46.5695889°N 8.3274056°E / 46.5695889; 8.3274056 |
| Type | artificial lake, hydroelectric reservoir |
| Primary inflows | Oberaarbach [de], Treibtenbach |
| Primary outflows | Aare |
| Catchment area | 74.4 km2 (28.7 sq mi) |
| Basin countries | Switzerland |
| Surface area | 2.63 km2 (1.02 sq mi) |
| Water volume | 95 million cubic metres (77,000 acre⋅ft) |
| Surface elevation | 1,908 m (6,260 ft) |
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The Grimselsee or Lake Grimsel is an artificial lake near the Grimsel Pass in the Canton of Bern, Switzerland. With a volume of 95 mio m3 (20.9 billion imperial gallons, 20.1 billion US gallons), it is larger than other hydroelectric reservoirs in the Aare headwaters region: Oberaarsee, Räterichsbodensee and Gelmersee. The dam was completed in 1932 and is operated by Kraftwerke Oberhasli AG (KWO). It is located in the municipality of Guttannen.
| Climate data for Grimselsee (Grimsel Hospiz), elevation 1,980 m (6,500 ft), (1991–2020) | |||||||||||||
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| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Mean daily maximum °C (°F) | −1.8(28.8) | −2.0(28.4) | 0.3(32.5) | 3.0(37.4) | 7.3(45.1) | 11.4(52.5) | 13.2(55.8) | 13.3(55.9) | 9.7(49.5) | 6.8(44.2) | 1.7(35.1) | −0.9(30.4) | 5.2(41.4) |
| Daily mean °C (°F) | −4.5(23.9) | −4.9(23.2) | −2.6(27.3) | 0.2(32.4) | 4.3(39.7) | 8.2(46.8) | 10.2(50.4) | 10.3(50.5) | 6.9(44.4) | 4.0(39.2) | −0.7(30.7) | −3.5(25.7) | 2.3(36.1) |
| Mean daily minimum °C (°F) | −7.4(18.7) | −7.9(17.8) | −5.5(22.1) | −2.7(27.1) | 1.3(34.3) | 4.9(40.8) | 7.0(44.6) | 7.3(45.1) | 4.2(39.6) | 1.4(34.5) | −3.1(26.4) | −6.2(20.8) | −0.6(30.9) |
| Average precipitation mm (inches) | 190.1(7.48) | 163.2(6.43) | 169.1(6.66) | 150.2(5.91) | 158.6(6.24) | 127.3(5.01) | 126.3(4.97) | 139.4(5.49) | 128.6(5.06) | 129.3(5.09) | 167.8(6.61) | 184.1(7.25) | 1,834(72.20) |
| Average snowfall cm (inches) | 203.9(80.3) | 192.7(75.9) | 202.3(79.6) | 151.4(59.6) | 74.9(29.5) | 21.7(8.5) | 3.3(1.3) | 5.2(2.0) | 21.3(8.4) | 53.8(21.2) | 149.5(58.9) | 179.6(70.7) | 1,259.6(495.9) |
| Average precipitation days (≥ 1.0 mm) | 12.1 | 11.8 | 13.2 | 12.5 | 13.9 | 14.6 | 13.4 | 13.8 | 11.3 | 10.8 | 11.6 | 12.7 | 151.7 |
| Average relative humidity (%) | 65.9 | 68.2 | 73.1 | 75.6 | 74.6 | 76.1 | 75.3 | 75.8 | 75.6 | 70.0 | 71.3 | 66.6 | 72.3 |
| Mean monthly sunshine hours | 71.6 | 95.2 | 128.7 | 123.0 | 135.3 | 185.2 | 177.7 | 169.1 | 139.8 | 114.9 | 64.1 | 57.0 | 1,434.6 |
| Source: NOAA[1] |
- List of lakes of Switzerland
- List of mountain lakes of Switzerland
Media related to Grimselsee at Wikimedia Commons- KWO: Lake Grimsel
- ^ "World Meteorological Organization Climate Normals for 1991–2020". World Meteorological Organization Climatological Standard Normals (1991–2020). National Oceanic and Atmospheric Administration. Archived from the original on 13 December 2024. Retrieved 13 December 2024.