La Roche-Derrien, France

Full City Profile

3.0 /5.0

B Good

1,063 Population 228/sq mi density

75 ft Elevation 23 meters

53°F Avg Temperature 12°C

Overall

3.0 / 5.0

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

Economy

1.8 / 5.0

$22,961 median income, 10.2% unemployment

Affordability

4.1 / 5.0

$105,000 home value, $525/mo rent

La Roche-Derrien experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 43°F in January while summers reach 61°F in July. The area gets 214 sunny days per year. Annual precipitation totals 43.1 inches. The area receives 3.3 inches of snow annually.

Temperature

43°F Jan (6°C) 61°F Jul (16°C)

Annual Average	53.0°F
	2% below US avg
January Average	43°F (6°C)
July Average	61°F (16°C)
Sunny Days	214 days/yr

Geography

Elevation	75 ft (23 m)
Area	4.7 sq mi (12.1 km²)
Population Density	228/sq mi
Coordinates	48.7469°N, 3.2606°W
Timezone	Europe/Paris

Precipitation & Snow

Annual Rainfall 43.1"

13% above US avg

Snowfall 3.3"

Wettest Month (Nov) 4.45"

Driest Month (Jul) 1.73"

Air Quality

Earthquake History

166 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.5. Most recent: M3.7 on Feb 19, 2020.

Nov 21, 2013	1 km WSW of Plescop, France	M4.5	122 km
Sep 30, 2002	3 km W of Languidic, France	M4.2	102 km
Apr 30, 1990	5 km SE of Saint Helier, Jersey	M4.2	99 km
Sep 30, 2002	1 km E of Languidic, France	M4.1	102 km
Jul 11, 2014	23 km W of Saint Helier, Jersey	M3.9	76 km
Oct 11, 1995	1 km SSE of Querrien, France	M3.9	91 km
Jul 18, 2004	6 km WSW of Groix, France	M3.8	128 km
Apr 23, 2002	1 km ESE of Melgven, France	M3.8	102 km
Jul 11, 2002	3 km NW of Pluduno, France	M3.8	73 km
Feb 19, 2020	3 km ESE of Brest, France	M3.7	97 km
Feb 25, 2015	30 km SW of Saint Helier, Jersey	M3.7	69 km
Aug 17, 1995	28 km S of Salcombe, United Kingdom	M3.6	143 km
Aug 22, 1998	38 km SSE of Plobannalec-Lesconil, France	M3.6	149 km
Apr 22, 1995	6 km E of Binic, France	M3.5	41 km
May 3, 1999	1 km SE of Gouesnach, France	M3.5	113 km
May 14, 1994	0 km SE of Riec-sur-Belon, France	M3.5	107 km
Dec 11, 2013	6 km WSW of Le Faou, France	M3.5	90 km
Feb 9, 2005	2 km N of Plouay, France	M3.4	91 km
Mar 21, 2003	10 km SE of Groix, France	M3.4	132 km
Sep 17, 1994	33 km NE of Plouézec, France	M3.4	51 km

Source: USGS (M2.5+, 1990–2025)

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	43°F (6°C)	4.4 in	Coldest
February	44°F (7°C)	3.5 in
March	47°F (8°C)	3.2 in
April	49°F (9°C)	2.4 in
May	54°F (12°C)	2.5 in
June	58°F (15°C)	2.0 in
July	61°F (16°C)	1.7 in	Driest
August	63°F (17°C)	2.1 in	Warmest
September	60°F (15°C)	2.9 in
October	55°F (13°C)	3.7 in
November	49°F (10°C)	4.5 in	Wettest
December	46°F (8°C)	4.5 in

La Roche-Derrien has a seasonal temperature swing of 20°F / from 43°F in January to 63°F in August. Total annual precipitation is 37.4 inches, with November being the wettest month (4.5") and July the driest (1.7").

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