Bionaz, Italy

Full City Profile

1.9 /5.0

D Poor

27 Population 3/sq mi density

5,269 ft Elevation 1,606 meters

29°F Avg Temperature -2°C

Overall

1.9 / 5.0

Below average overall score based on economy, affordability, safety and education

Economy

1.9 / 5.0

$19,436 median income, 10.5% unemployment

Bionaz has a cool climate with an average annual temperature of 29°F (-2°C). Winters average 18°F in January while summers reach 43°F in July. The area gets 260 sunny days per year. Annual precipitation totals 42.0 inches. The area receives 30.4 inches of snow annually.

Temperature

18°F Jan (-8°C) 43°F Jul (6°C)

Annual Average	29.2°F
	46% below US avg
January Average	18°F (-8°C)
July Average	43°F (6°C)
Sunny Days	260 days/yr

Geography

Elevation	5,269 ft (1,606 m)
Area	11.0 sq mi (28.5 km²)
Population Density	3/sq mi
Coordinates	45.8736°N, 7.4231°W
Timezone	Europe/Rome

Precipitation & Snow

Annual Rainfall 42.0"

11% above US avg

Snowfall 30.4"

Wettest Month (Nov) 4.17"

Driest Month (Jul) 2.68"

Air Quality

Earthquake History

1,297 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.9. Most recent: M4.1 on Jul 21, 2025.

Aug 21, 2000	1 km WNW of Oviglio, Italy	M4.9	139 km
Feb 14, 1999	3 km NNE of Belfaux, Switzerland	M4.7	111 km
Jul 18, 2001	3 km S of Masio, Italy	M4.7	138 km
Jan 20, 1994	1 km NE of Melle, Italy	M4.6	145 km
Feb 11, 1991	5 km ESE of Briançon, France	M4.6	125 km
Dec 14, 1994	7 km SSE of Amancy, France	M4.5	84 km
Apr 19, 2009	1 km ENE of Bandito, Italy	M4.5	132 km
Jul 15, 1996	3 km NE of Chilly, France	M4.5	113 km
Mar 12, 2022	3 km S of Faverges, France	M4.5	90 km
Oct 3, 2012	2 km N of Melle, Italy	M4.5	143 km
Jul 25, 2011	5 km NW of Cantalupa, Italy	M4.4	100 km
Jun 14, 1993	3 km S of Vogogna, Italy	M4.4	69 km
Nov 21, 1995	1 km SW of Collegno, Italy	M4.4	90 km
May 24, 1995	7 km NE of Le Chenit, Switzerland	M4.4	121 km
Jul 23, 1996	4 km W of Choisy, France	M4.4	110 km
Feb 11, 1990	northern Italy	M4.3	97 km
Mar 31, 1996	7 km NNW of Bionaz, Italy	M4.3	7 km
Jan 20, 1994	1 km SW of Melle, Italy	M4.3	147 km
Jun 30, 2010	3 km NW of Saint-Martin-de-Belleville, France	M4.3	90 km
Apr 29, 2003	2 km SSW of Varen, Switzerland	M4.3	49 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	132 km
1996	LAKE BRIENZ	Meteorological	0.5 m	—	104 km
563	LAKE GENEVA	Meteorological	—	—	71 km

Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	18°F (-8°C)	3.8 in
February	17°F (-8°C)	3.7 in	Coldest
March	19°F (-7°C)	3.9 in
April	22°F (-6°C)	3.7 in
May	31°F (-1°C)	3.7 in
June	37°F (3°C)	3.0 in
July	43°F (6°C)	2.7 in	Driest
August	45°F (7°C)	3.0 in	Warmest
September	40°F (4°C)	2.8 in
October	33°F (0°C)	3.7 in
November	25°F (-4°C)	4.2 in	Wettest
December	20°F (-6°C)	3.8 in

Bionaz has a seasonal temperature swing of 28°F / from 17°F in February to 45°F in August. Total annual precipitation is 42.0 inches, with November being the wettest month (4.2") and July the driest (2.7").

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