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Weather & Climate in Trun, Switzerland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Trun has a cool climate with an average annual temperature of 34°F (1°C). Winters average 22°F in January while summers reach 48°F in July. The area gets 213 sunny days per year. Annual precipitation totals 67.7 inches (wetter than the 38-inch national average). The area receives 29.4 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 2,858 feet.
Temperature
22°F Jan (-5°C)
48°F Jul (9°C)
| Annual Average | 33.8°F |
| 37% below US avg | |
| January Average | 22°F (-5°C) |
| July Average | 48°F (9°C) |
| Sunny Days | 213 days/yr |
Geography
| Elevation | 2,858 ft (871 m) |
| Area | 23.9 sq mi (61.8 km²) |
| Population Density | 52/sq mi |
| Coordinates | 46.7429°N, 8.9872°W |
| Timezone | Europe/Zurich |
Precipitation & Snow
Air Quality
Earthquake History
786 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Oct 29, 1995 | 0 km WNW of Adro, Italy | M4.9 | 145 km | 10 km |
| Dec 29, 1999 | 12 km N of Isolaccia, Italy | M4.8 | 102 km | 10 km |
| Mar 31, 1994 | 2 km W of Warth, Austria | M4.7 | 105 km | 14 km |
| Nov 20, 1991 | 1 km WSW of Churwalden, Switzerland | M4.7 | 41 km | 10 km |
| Feb 14, 1999 | 3 km NNE of Belfaux, Switzerland | M4.7 | 142 km | 10 km |
| Jun 5, 1997 | 2 km ESE of Namlos, Austria | M4.6 | 145 km | 5 km |
| Jan 4, 2009 | 3 km S of Wildhaus, Switzerland | M4.5 | 56 km | 3 km |
| Oct 1, 2001 | 11 km WSW of Tubre, Italy | M4.5 | 103 km | 10 km |
| Aug 28, 1994 | 6 km SSW of Muotathal, Switzerland | M4.5 | 27 km | 8 km |
| Apr 6, 2000 | 11 km WSW of Tubre, Italy | M4.5 | 104 km | 5 km |
| Feb 17, 1992 | 4 km NNE of Scharans, Switzerland | M4.5 | 38 km | 10 km |
| May 15, 1992 | 1 km W of Sennwald, Switzerland | M4.4 | 69 km | 5 km |
| May 8, 1992 | 2 km WSW of Sennwald, Switzerland | M4.4 | 68 km | 5 km |
| Jun 14, 1993 | 3 km S of Vogogna, Italy | M4.4 | 100 km | 10 km |
| Nov 22, 1997 | 4 km SSW of Krummenau, Switzerland | M4.4 | 53 km | 10 km |
| May 8, 1992 | 0 km NNW of Sennwald, Switzerland | M4.4 | 70 km | 5 km |
| Nov 16, 1995 | 1 km ENE of Einsiedeln, Switzerland | M4.3 | 47 km | 5 km |
| Apr 29, 2003 | 2 km SSW of Varen, Switzerland | M4.3 | 117 km | 8 km |
| Dec 31, 1999 | 11 km WSW of Tubre, Italy | M4.3 | 103 km | 10 km |
| May 6, 2003 | 7 km WSW of Linthal, Switzerland | M4.3 | 19 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 95.0 m (312 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1987 | VALTELLINA | Meteorological | 95.0 m | 27 | 111 km |
| 1601 | LAKE LUCERNE | Eruption + Earthquake | 4.0 m | 8 | 38 km |
| 1996 | LAKE BRIENZ | Meteorological | 0.5 m | — | 78 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-5°C) | 4.5 in | |
| February | 22°F (-6°C) | 4.0 in | Coldest, Driest |
| March | 25°F (-4°C) | 4.9 in | |
| April | 29°F (-2°C) | 5.8 in | |
| May | 37°F (3°C) | 5.9 in | |
| June | 43°F (6°C) | 6.7 in | |
| July | 48°F (9°C) | 7.1 in | Wettest |
| August | 48°F (9°C) | 6.8 in | Warmest |
| September | 43°F (6°C) | 6.1 in | |
| October | 37°F (3°C) | 5.7 in | |
| November | 28°F (-2°C) | 5.4 in | |
| December | 24°F (-4°C) | 4.8 in |
Trun has a seasonal temperature swing of 26°F / from 22°F in February to 48°F in August. Total annual precipitation is 67.7 inches, with July being the wettest month (7.1") and February the driest (4.0").