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Weather & Climate in Sankt Stephan, Switzerland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sankt Stephan has a cool climate with an average annual temperature of 32°F (0°C). Winters average 15°F in January while summers reach 49°F in July. The area gets 267 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 81.5 inches (wetter than the 38-inch national average). The area receives 294.7 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 3,304 feet.
Temperature
15°F Jan (-10°C)
49°F Jul (9°C)
| Annual Average | 32.3°F |
| 40% below US avg | |
| January Average | 15°F (-10°C) |
| July Average | 49°F (9°C) |
| Sunny Days | 267 days/yr |
Geography
| Elevation | 3,304 ft (1,007 m) |
| Area | 70.2 sq mi (181.8 km²) |
| Population Density | 19/sq mi |
| Coordinates | 46.5083°N, 7.3956°W |
| Timezone | Europe/Zurich |
Precipitation & Snow
Air Quality
Earthquake History
838 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.7.
| Feb 14, 1999 | 3 km NNE of Belfaux, Switzerland | M4.7 | 43 km | 10 km |
| Dec 14, 1994 | 7 km SSE of Amancy, France | M4.5 | 97 km | 10 km |
| Mar 12, 2022 | 3 km S of Faverges, France | M4.5 | 123 km | 3 km |
| Jul 15, 1996 | 3 km NE of Chilly, France | M4.5 | 122 km | 5 km |
| Aug 28, 1994 | 6 km SSW of Muotathal, Switzerland | M4.5 | 112 km | 8 km |
| May 24, 1995 | 7 km NE of Le Chenit, Switzerland | M4.4 | 84 km | 6 km |
| Mar 22, 2023 | 1 km NW of Pont-de-Roide, France | M4.4 | 110 km | 12 km |
| Feb 23, 2004 | 5 km SSE of Roulans, France | M4.4 | 121 km | 17 km |
| Jun 14, 1993 | 3 km S of Vogogna, Italy | M4.4 | 91 km | 10 km |
| Jul 23, 1996 | 4 km W of Choisy, France | M4.4 | 121 km | 10 km |
| Jun 30, 2010 | 3 km NW of Saint-Martin-de-Belleville, France | M4.3 | 141 km | 2 km |
| May 6, 2003 | 7 km WSW of Linthal, Switzerland | M4.3 | 123 km | 6 km |
| Mar 31, 1996 | 7 km NNW of Bionaz, Italy | M4.3 | 64 km | 5 km |
| Apr 29, 2003 | 2 km SSW of Varen, Switzerland | M4.3 | 28 km | 8 km |
| Nov 16, 1995 | 1 km ENE of Einsiedeln, Switzerland | M4.3 | 125 km | 5 km |
| Jun 28, 2004 | 2 km NNW of Brugg, Switzerland | M4.2 | 126 km | 20 km |
| Feb 11, 2012 | 2 km WNW of Unterägeri, Switzerland | M4.2 | 113 km | 32 km |
| May 20, 1999 | 4 km SSE of Plaffeien, Switzerland | M4.2 | 23 km | 2 km |
| Aug 22, 2003 | 6 km NNW of Savièse, Switzerland | M4.2 | 24 km | 4 km |
| Dec 30, 1992 | 2 km SW of Ühlingen-Birkendorf, Germany | M4.2 | 149 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 4.0 m (13 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1601 | LAKE LUCERNE | Eruption + Earthquake | 4.0 m | 8 | 90 km |
| 1996 | LAKE BRIENZ | Meteorological | 0.5 m | — | 50 km |
| 563 | LAKE GENEVA | Meteorological | — | — | 47 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 15°F (-10°C) | 4.2 in | Coldest |
| February | 28°F (-2°C) | 4.5 in | |
| March | 32°F (-0°C) | 3.6 in | |
| April | 37°F (3°C) | 3.7 in | |
| May | 46°F (8°C) | 4.1 in | |
| June | 51°F (11°C) | 4.6 in | |
| July | 49°F (9°C) | 4.1 in | |
| August | 56°F (13°C) | 4.1 in | Warmest |
| September | 50°F (10°C) | 3.4 in | Driest |
| October | 43°F (6°C) | 4.0 in | |
| November | 34°F (1°C) | 4.5 in | |
| December | 29°F (-2°C) | 4.8 in | Wettest |
Sankt Stephan has a seasonal temperature swing of 41°F / from 15°F in January to 56°F in August. Total annual precipitation is 49.6 inches, with December being the wettest month (4.8") and September the driest (3.4").