Grimsel Pass

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Grimsel Pass
Blick auf den Grimselsee und den Raeterichsbodensee 0981.jpg
View from the pass on Grimselsee, Grimsel Hospice and Räterichsbodensee
Elevation 2,165 m (7,103 ft)
Location Bern/Valais, Switzerland
Range Alps
Coordinates 46°33.72′N 08°20.34′E / 46.56200°N 8.33900°E / 46.56200; 8.33900Coordinates: 46°33.72′N 08°20.34′E / 46.56200°N 8.33900°E / 46.56200; 8.33900
Grimsel Pass is located in Switzerland
Grimsel Pass
Grimsel Pass
Location in Switzerland

Grimsel Pass (German: Grimselpass) (el. 2165 m.) is a Swiss high mountain pass.

Position[edit]

The sign on the top of the alpine pass

It connects the valley of the river Rhône in the canton of Valais with the Haslital (upper valley of the river Aar) in the canton of Bern.

It is located near the source of the Rhône at the Rhône Glacier. Also in the area is the Grimsel Test Site, used for research into underground radioactive waste disposal.

Map of the reservoirs on the Bernese side below Grimsel Pass

Panorama[edit]

Grimselpass pano.jpg

Climate[edit]

Due to the high altitude of the Pass, and its continental location, the climate is cool or cold all year round, and receives a fair amount of precipitation year round (the majority of which is snow). Snow usually falls from late September until late June, although during cool spells, it can snow at the height of Summer. Most years, permanent snow fields remain at the pass, due to the temperature rarely rising above 15°C. The Pass is often closed from October through until late June due to deep snow cover. It is the only road pass between the cantons of Bern and Valais across the Bernese Alps and snow ploughs do try to keep it open. This area has a long winter season, with little precipitation mostly in the form of snow, and low humidity. The Köppen Climate System classifies the climate here as subarctic, and abbreviates this as Dfc.[1]

Climate data for Grimsel Hospiz (1981-2010)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °C (°F) −2.1
(28.2)
−2.2
(28)
−0.2
(31.6)
2.5
(36.5)
7.6
(45.7)
11.4
(52.5)
14.0
(57.2)
13.7
(56.7)
10.4
(50.7)
7.5
(45.5)
1.6
(34.9)
−1.1
(30)
5.3
(41.5)
Daily mean °C (°F) −5.0
(23)
−5.4
(22.3)
−3.3
(26.1)
−0.6
(30.9)
4.0
(39.2)
7.5
(45.5)
10.0
(50)
9.9
(49.8)
6.9
(44.4)
4.0
(39.2)
−1.2
(29.8)
−4.0
(24.8)
1.9
(35.4)
Average low °C (°F) −8.0
(17.6)
−8.4
(16.9)
−6.4
(20.5)
−3.4
(25.9)
1.1
(34)
4.2
(39.6)
6.6
(43.9)
6.7
(44.1)
4.1
(39.4)
1.4
(34.5)
−3.6
(25.5)
−6.8
(19.8)
−1.0
(30.2)
Precipitation mm (inches) 199
(7.83)
171
(6.73)
184
(7.24)
150
(5.91)
154
(6.06)
133
(5.24)
130
(5.12)
135
(5.31)
128
(5.04)
120
(4.72)
174
(6.85)
181
(7.13)
1,856
(73.07)
Snowfall cm (inches) 203.9
(80.28)
192.7
(75.87)
202.3
(79.65)
151.4
(59.61)
74.9
(29.49)
21.7
(8.54)
3.3
(1.3)
5.2
(2.05)
21.3
(8.39)
53.8
(21.18)
149.5
(58.86)
179.6
(70.71)
1,259.6
(495.91)
Avg. precipitation days (≥ 1.0 mm) 12.1 11.6 14.9 13.3 14.5 14.4 13.6 13.7 11.3 10.8 11.9 12.8 154.9
Avg. snowy days (≥ 1.0 cm) 13.7 13.1 15.5 13.8 6.6 2.7 0.5 0.6 2.5 5.8 11.7 14.3 100.8
 % humidity 66 68 73 76 75 76 75 76 76 70 71 67 72
Mean monthly sunshine hours 71 93 117 105 128 151 173 163 134 114 63 58 1,371
Source: MeteoSwiss [2]

See also[edit]

External links[edit]

References[edit]

  1. ^ Climate Summary for Grimsel
  2. ^ "Climate Norm Value Tables". Climate diagrams and normals from Swiss measuring stations. Federal Office of Meteorology and Climatology (MeteoSwiss). Retrieved 31 January 2013.  The weather station elevation is 1,980 meters above sea level.