San Bernardino Pass
| San Bernardino Pass | |
|---|---|
Graubünden, Switzerland | |
| Range | Lepontine Alps |
| Coordinates | 46°29′46″N 9°10′15″E / 46.49611°N 9.17083°E |
| Topo map | Swiss Federal Office of Topography swisstopo |
  Location in Switzerland | |
San Bernardino Pass (
Rhine basin. Marscholsee
is within the pass at an elevation of 2,053 m (6,736 ft).
The route first became important as a mule track in the fifteenth century when the route between
Graubünden that was not directly controlled by Austria
.
Traffic flow was much facilitated when in 1967, the
San Bernardino road tunnel
was completed: since then vehicle traffic on the pass has been reduced, benefiting those taking the time to avoid the tunnel. The pass road is only open from May to November.
Climate
The average climatic conditions for San Bernardino village at the entry point to the
San Bernardino tunnel
at 1,639 m (5,377 ft) are given in the following chart.
| Climate data for S. Bernardino village (1981-2010) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Mean daily maximum °C (°F) | 0.6 (33.1) |
0.7 (33.3) |
3.2 (37.8) |
5.8 (42.4) |
10.8 (51.4) |
15.1 (59.2) |
17.8 (64.0) |
17.2 (63.0) |
13.2 (55.8) |
9.2 (48.6) |
3.8 (38.8) |
1.0 (33.8) |
8.2 (46.8) |
| Daily mean °C (°F) | −3.6 (25.5) |
−3.6 (25.5) |
−0.9 (30.4) |
1.9 (35.4) |
6.5 (43.7) |
10.5 (50.9) |
13.0 (55.4) |
12.4 (54.3) |
8.9 (48.0) |
4.9 (40.8) |
0.0 (32.0) |
−3.0 (26.6) |
3.9 (39.0) |
| Mean daily minimum °C (°F) | −7.6 (18.3) |
−7.5 (18.5) |
−4.7 (23.5) |
−1.5 (29.3) |
2.6 (36.7) |
6.0 (42.8) |
8.3 (46.9) |
8.1 (46.6) |
5.0 (41.0) |
1.3 (34.3) |
−3.3 (26.1) |
−6.5 (20.3) |
0.0 (32.0) |
| Average precipitation mm (inches) | 89 (3.5) |
62 (2.4) |
95 (3.7) |
171 (6.7) |
216 (8.5) |
188 (7.4) |
188 (7.4) |
193 (7.6) |
202 (8.0) |
182 (7.2) |
162 (6.4) |
105 (4.1) |
1,854 (73.0) |
| Average snowfall cm (inches) | 95.3 (37.5) |
77.8 (30.6) |
76.4 (30.1) |
92.8 (36.5) |
13.6 (5.4) |
0.5 (0.2) |
0 (0) |
0 (0) |
1.4 (0.6) |
9.9 (3.9) |
64.6 (25.4) |
89.4 (35.2) |
521.7 (205.4) |
| Average precipitation days (≥ 1.0 mm) | 7.5 | 6.7 | 8.5 | 11.2 | 14.7 | 12.0 | 11.5 | 12.4 | 10.1 | 10.7 | 9.4 | 8.2 | 122.9 |
| Average snowy days (≥ 1.0 cm) | 8.9 | 7.5 | 7.4 | 8 | 1.8 | 0.1 | 0 | 0 | 0.2 | 1.6 | 6.9 | 8.6 | 51 |
| Average relative humidity (%)
|
63 | 64 | 65 | 71 | 74 | 71 | 71 | 73 | 75 | 76 | 71 | 68 | 70 |
| Mean monthly sunshine hours | 101 | 109 | 140 | 120 | 125 | 150 | 172 | 159 | 138 | 114 | 88 | 88 | 1,504 |
| Source: MeteoSwiss[2] | |||||||||||||
See also
- List of highest paved roads in Europe
- List of mountain passes
- List of the highest Swiss passes
Bibliography
- ISBN 978-88-8191-281-0
References
- ^ Swisstopo maps
- ^ "Climate Norm Value Tables". Climate diagrams and normals from Swiss measuring stations. Federal Office of Meteorology and Climatology (MeteoSwiss). Archived from the original on 14 May 2013. Retrieved 23 January 2013. The weather station elevation is 1638 meters above sea level.
External links
- Profile on climbbybike.com
Media related to San Bernardino Pass at Wikimedia Commons
