Saint John, Jersey

Full City Profile

3,051 Population 908/sq mi density

344 ft Elevation 105 meters

53°F Avg Temperature 12°C

Saint John experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 44°F in January while summers reach 63°F in July. The area gets 276 sunny days per year. Annual precipitation totals 33.4 inches. The area receives 0.0 inches of snow annually.

Temperature

44°F Jan (7°C) 63°F Jul (17°C)

Annual Average	52.7°F
	2% below US avg
January Average	44°F (7°C)
July Average	63°F (17°C)
Sunny Days	276 days/yr

Geography

Elevation	344 ft (105 m)
Area	3.4 sq mi (8.7 km²)
Population Density	908/sq mi
Coordinates	49.2456°N, 2.1386°W
Timezone	Europe/Jersey

Precipitation & Snow

Annual Rainfall 33.4"

12% below US avg

Snowfall 0.0"

Wettest Month (Nov) 4.21"

Driest Month (Jul) 1.50"

Air Quality

Earthquake History

20 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.2. Most recent: M0.0 on May 19, 2019.

Apr 30, 1990	5 km SE of Saint Helier, Jersey	M4.2	12 km
Nov 30, 1994	17 km N of Courseulles-sur-Mer, France	M4.1	126 km
Jul 14, 2011	62 km SSE of Ventnor, United Kingdom	M3.9	140 km
Jul 11, 2014	23 km W of Saint Helier, Jersey	M3.9	23 km
Jul 11, 2002	3 km NW of Pluduno, France	M3.8	78 km
Feb 25, 2015	30 km SW of Saint Helier, Jersey	M3.7	33 km
Sep 23, 2003	41 km WNW of Étretat, France	M3.6	147 km
Aug 17, 1995	28 km S of Salcombe, United Kingdom	M3.6	145 km
Aug 8, 1998	1 km SE of Cairon, France	M3.5	124 km
Jul 26, 1993	5 km ESE of Villedieu-les-Poêles, France	M3.5	87 km
Apr 22, 1995	6 km E of Binic, France	M3.5	84 km
Jun 22, 1997	13 km SSE of Saint Helier, Jersey	M3.4	20 km
Sep 17, 1994	33 km NE of Plouézec, France	M3.4	50 km
Dec 7, 1998	0 km SE of Cherrueix, France	M3.4	79 km
Jul 23, 2014	France	M3.3	32 km
Aug 29, 2001	5 km ENE of Saint-Lô, France	M3.3	82 km
Sep 22, 1991	5 km ENE of Neulliac, France	M3.3	136 km
Jul 14, 1998	7 km NNE of Poullaouen, France	M3.2	142 km
Feb 12, 1990	1 km N of Lanmeur, France	M3.2	132 km
May 30, 2001	3 km SW of Quintin, France	M3.2	112 km

Source: USGS (M2.5+, 1990–2025)

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	44°F (7°C)	3.9 in
February	44°F (6°C)	3.0 in	Coldest
March	46°F (8°C)	2.8 in
April	49°F (9°C)	2.0 in
May	54°F (12°C)	2.0 in
June	59°F (15°C)	1.9 in
July	63°F (17°C)	1.5 in	Driest
August	64°F (18°C)	1.8 in	Warmest
September	60°F (16°C)	2.7 in
October	55°F (13°C)	3.5 in
November	49°F (10°C)	4.2 in	Wettest
December	46°F (8°C)	4.1 in

Saint John has a seasonal temperature swing of 20°F / from 44°F in February to 64°F in August. Total annual precipitation is 33.4 inches, with November being the wettest month (4.2") and July the driest (1.5").

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