Gilly-sur-Isère, France

Full City Profile

3.2 /5.0

B Good

2,736 Population 317/sq mi density

1,119 ft Elevation 341 meters

54°F Avg Temperature 12°C

Overall

3.2 / 5.0

Good overall score based on economy, affordability, safety and education

C+

Economy

2.8 / 5.0

$28,836 median income, 6.5% unemployment

B+

Affordability

3.6 / 5.0

$157,600 home value, $788/mo rent

Gilly-sur-Isère experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 35°F in January while summers reach 71°F in July. The area gets 275 sunny days per year. Annual precipitation totals 88.8 inches. The area receives 224.7 inches of snow annually.

Temperature

35°F Jan (1°C) 71°F Jul (22°C)

Annual Average	53.5°F
	1% below US avg
January Average	35°F (1°C)
July Average	71°F (22°C)
Sunny Days	275 days/yr

Geography

Elevation	1,119 ft (341 m)
Area	8.6 sq mi (22.3 km²)
Population Density	317/sq mi
Coordinates	45.6592°N, 6.3510°W
Timezone	Europe/Paris

Precipitation & Snow

Annual Rainfall 88.8"

134% above US avg

Snowfall 224.7"

Wettest Month (Nov) 5.04"

Driest Month (Jul) 3.19"

Air Quality

Earthquake History

1,491 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.8. Most recent: M4.1 on Jul 21, 2025.

Apr 7, 2014	7 km SE of Guillestre, France	M4.8	121 km
Feb 14, 1999	3 km NNE of Belfaux, Switzerland	M4.7	146 km
Jan 20, 1994	1 km NE of Melle, Italy	M4.6	144 km
Feb 11, 1991	5 km ESE of Briançon, France	M4.6	92 km
Mar 2, 2012	8 km NNW of Jausiers, France	M4.5	133 km
Dec 14, 1994	7 km SSE of Amancy, France	M4.5	39 km
Oct 3, 2012	2 km N of Melle, Italy	M4.5	141 km
Jul 15, 1996	3 km NE of Chilly, France	M4.5	49 km
Mar 12, 2022	3 km S of Faverges, France	M4.5	8 km
Jul 25, 2011	5 km NW of Cantalupa, Italy	M4.4	105 km
May 24, 1995	7 km NE of Le Chenit, Switzerland	M4.4	110 km
Nov 21, 1995	1 km SW of Collegno, Italy	M4.4	114 km
Jul 23, 1996	4 km W of Choisy, France	M4.4	46 km
Feb 11, 1990	northern Italy	M4.3	122 km
Jun 30, 2010	3 km NW of Saint-Martin-de-Belleville, France	M4.3	29 km
Jan 20, 1994	1 km SW of Melle, Italy	M4.3	144 km
Mar 31, 1996	7 km NNW of Bionaz, Italy	M4.3	87 km
Apr 29, 2003	2 km SSW of Varen, Switzerland	M4.3	120 km
Jan 11, 1999	2 km W of Saint-Paul-de-Varces, France	M4.2	87 km
May 14, 2004	0 km SSE of Chiusa di San Michele, Italy	M4.2	98 km

Source: USGS (M2.5+, 1990–2025)

Tsunami History

1 tsunami recorded within 500 km.

Year	Location	Cause	Max Wave	Deaths	Distance
563	LAKE GENEVA	Meteorological	—	—	86 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	35°F (1°C)	4.5 in
February	32°F (-0°C)	4.4 in	Coldest
March	36°F (2°C)	3.7 in
April	41°F (5°C)	3.6 in
May	50°F (10°C)	4.0 in
June	56°F (13°C)	4.0 in
July	71°F (22°C)	3.2 in	Warmest, Driest
August	61°F (16°C)	3.3 in
September	54°F (12°C)	3.8 in
October	46°F (8°C)	4.5 in
November	37°F (3°C)	5.0 in	Wettest
December	32°F (-0°C)	4.9 in

Gilly-sur-Isère has a seasonal temperature swing of 39°F / from 32°F in February to 71°F in July. Total annual precipitation is 49.0 inches, with November being the wettest month (5.0") and July the driest (3.2").

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