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Riaz, Switzerland

Full City Profile

1,894 Population 123/sq mi density
2,392 ft Elevation 729 meters
40°F Avg Temperature 4°C
Riaz has a cool climate with an average annual temperature of 40°F (4°C). Winters average 22°F in January while summers reach 55°F in July. The area gets 269 sunny days per year. Annual precipitation totals 80.8 inches. The area receives 176.4 inches of snow annually.

Temperature

22°F Jan (-5°C) 55°F Jul (13°C)
Annual Average39.5°F
27% below US avg
January Average22°F (-5°C)
July Average55°F (13°C)
Sunny Days269 days/yr

Geography

Elevation2,392 ft (729 m)
Area15.5 sq mi (40.0 km²)
Population Density123/sq mi
Coordinates46.6422°N, 7.0618°W
TimezoneEurope/Zurich

Precipitation & Snow

Annual Rainfall 80.8"
113% above US avg
Snowfall 176.4"
Wettest Month (Jun) 5.20"
Driest Month (Mar) 3.50"

Air Quality

Earthquake History

799 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.7. Most recent: M0.0 on Jul 21, 2025.

Feb 14, 1999 3 km NNE of Belfaux, Switzerland M4.7 24 km
Aug 28, 1994 6 km SSW of Muotathal, Switzerland M4.5 132 km
Jul 15, 1996 3 km NE of Chilly, France M4.5 109 km
Dec 14, 1994 7 km SSE of Amancy, France M4.5 89 km
Mar 12, 2022 3 km S of Faverges, France M4.5 119 km
Mar 22, 2023 1 km NW of Pont-de-Roide, France M4.4 87 km
Jun 14, 1993 3 km S of Vogogna, Italy M4.4 120 km
Jul 23, 1996 4 km W of Choisy, France M4.4 108 km
Feb 23, 2004 5 km SSE of Roulans, France M4.4 92 km
May 24, 1995 7 km NE of Le Chenit, Switzerland M4.4 57 km
Nov 16, 1995 1 km ENE of Einsiedeln, Switzerland M4.3 140 km
Apr 29, 2003 2 km SSW of Varen, Switzerland M4.3 56 km
Mar 31, 1996 7 km NNW of Bionaz, Italy M4.3 83 km
May 6, 2003 7 km WSW of Linthal, Switzerland M4.3 143 km
Jun 30, 2010 3 km NW of Saint-Martin-de-Belleville, France M4.3 144 km
May 14, 1999 9 km NW of Brienz, Switzerland M4.2 70 km
May 20, 1999 4 km SSE of Plaffeien, Switzerland M4.2 19 km
Dec 30, 1992 2 km SW of Ühlingen-Birkendorf, Germany M4.2 150 km
Jun 28, 2004 2 km NNW of Brugg, Switzerland M4.2 129 km
Feb 11, 2012 2 km WNW of Unterägeri, Switzerland M4.2 126 km
Source: USGS (M2.5+, 1990–2025)

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 8 111 km
1996 LAKE BRIENZ Meteorological 0.5 m 70 km
563 LAKE GENEVA Meteorological 36 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 22°F (-5°C) 4.1 in Coldest
February 31°F (-1°C) 4.3 in
March 36°F (2°C) 3.5 in Driest
April 41°F (5°C) 3.8 in
May 49°F (10°C) 4.4 in
June 55°F (13°C) 5.2 in Wettest
July 55°F (13°C) 4.6 in
August 59°F (15°C) 4.7 in Warmest
September 53°F (12°C) 3.9 in
October 45°F (7°C) 4.2 in
November 36°F (2°C) 4.6 in
December 31°F (-0°C) 4.7 in

Riaz has a seasonal temperature swing of 37°F / from 22°F in January to 59°F in August. Total annual precipitation is 52.0 inches, with June being the wettest month (5.2") and March the driest (3.5").

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