Cessy

Cessy
Cessy
Commune
	Town hall
	Coat of arms
	Location of Cessy
	Cessy Cessy
	Coordinates: 46°19′09″N6°04′12″E / 46.3192°N 6.07°E
Country	France
Region	Auvergne-Rhône-Alpes
Department	Ain
Arrondissement	Gex
Canton	Gex
Intercommunality	CA Pays de Gex
Government
• Mayor (2020–2026)	Christophe Bouvier
Area 1	6.39 km2 (2.47 sq mi)
Population (2021)	5,307
• Density	830/km2 (2,200/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	01071 /01170
Elevation	496–583 m (1,627–1,913 ft) ; (avg. 526 m or 1,726 ft)
	1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Last updated June 27, 2024

Cessy (French pronunciation: [sesi] ) is a commune in the Ain department in eastern France. The area was first inhabited by two farming families in the eleventh century, and as the town has grown its agricultural heritage has remained a significant feature, with the populated area surrounded by a vast expanse of fields and an annual agricultural festival.

Geography

Climate

Cessy has an oceanic climate (Köppen climate classification Cfb). The average annual temperature in Cessy is 10.9 °C (51.6 °F). The average annual rainfall is 1,063.2 mm (41.86 in) with December as the wettest month. The temperatures are highest on average in July, at around 20.5 °C (68.9 °F), and lowest in January, at around 1.8 °C (35.2 °F). The highest temperature ever recorded in Cessy was 37.8 °C (100.0 °F) on 13 August 2003; the coldest temperature ever recorded was −16.3 °C (2.7 °F) on 1 February 2003.

Climate data for Cessy (1991−2020 normals, extremes 2002−present)
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Record high °C (°F)	15.4 (59.7)	19.5 (67.1)	22.4 (72.3)	26.5 (79.7)	32.8 (91.0)	35.5 (95.9)	37.6 (99.7)	37.8 (100.0)	30.7 (87.3)	26.8 (80.2)	21.4 (70.5)	16.0 (60.8)	37.8 (100.0)
Mean daily maximum °C (°F)	4.9 (40.8)	6.3 (43.3)	11.2 (52.2)	16.2 (61.2)	19.6 (67.3)	24.6 (76.3)	26.7 (80.1)	25.9 (78.6)	21.5 (70.7)	15.7 (60.3)	9.6 (49.3)	5.4 (41.7)	15.6 (60.1)
Daily mean °C (°F)	1.8 (35.2)	2.5 (36.5)	6.4 (43.5)	10.8 (51.4)	14.3 (57.7)	18.7 (65.7)	20.5 (68.9)	19.9 (67.8)	16.1 (61.0)	11.5 (52.7)	6.3 (43.3)	2.4 (36.3)	10.9 (51.6)
Mean daily minimum °C (°F)	−1.2 (29.8)	−1.4 (29.5)	1.7 (35.1)	5.3 (41.5)	8.9 (48.0)	12.9 (55.2)	14.3 (57.7)	13.9 (57.0)	10.8 (51.4)	7.4 (45.3)	2.9 (37.2)	−0.5 (31.1)	6.3 (43.3)
Record low °C (°F)	−13.9 (7.0)	−16.3 (2.7)	−11.0 (12.2)	−6.0 (21.2)	−0.4 (31.3)	2.6 (36.7)	6.7 (44.1)	6.3 (43.3)	1.6 (34.9)	−3.4 (25.9)	−10.0 (14.0)	−14.7 (5.5)	−16.3 (2.7)
Average precipitation mm (inches)	106.0 (4.17)	75.8 (2.98)	77.9 (3.07)	66.7 (2.63)	87.0 (3.43)	85.4 (3.36)	81.1 (3.19)	86.5 (3.41)	63.0 (2.48)	101.6 (4.00)	110.1 (4.33)	122.1 (4.81)	1,063.2 (41.86)
Average precipitation days (≥ 1.0 mm)	11.2	8.4	9.3	8.1	11.3	9.3	9.0	9.0	7.2	9.6	9.3	10.8	112.5
Source: Météo-France ^[3]

Population

Historical population
Year	Pop.	±% p.a.
1968	509	—
1975	770	+6.09%
1982	1,068	+4.78%
1990	1,763	+6.47%
1999	2,283	+2.91%
2007	3,368	+4.98%
2012	4,342	+5.21%
2017	4,856	+2.26%
Source: INSEE^[4]

Compact Muon Solenoid

One of the primary points of interest in the quiet community of Cessy, France is the Compact Muon Solenoid (CMS) experiment, located 100 meters below ground at a site on the south-eastern edge of the village. CMS is a high-energy particle physics experiment which observes the result of high energy proton-proton collisions of the CERN laboratory's Large Hadron Collider (LHC) particle accelerator.^[5]

Personalities

Tim Berners-Lee lived on Rue de la Mairie in Cessy when he, with Robert Cailliau, invented the World Wide Web.

Related Research Articles

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References

↑ "Répertoire national des élus: les maires". data.gouv.fr, Plateforme ouverte des données publiques françaises (in French). 2 December 2020. Archived from the original on 28 June 2020. Retrieved 24 March 2021.
↑ "Populations légales 2021" (in French). The National Institute of Statistics and Economic Studies. 28 December 2023.
↑ "Fiche Climatologique Statistiques 1991-2020 et records" (PDF). Météo-France. Archived (PDF) from the original on 21 August 2022. Retrieved 21 August 2022.
↑ Population en historique depuis 1968 Archived 26 July 2022 at the Wayback Machine , INSEE
↑ "CMS home page". Archived from the original on 15 November 2008. Retrieved 25 May 2010.

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[1] "Répertoire national des élus: les maires". data.gouv.fr, Plateforme ouverte des données publiques françaises (in French). 2 December 2020. Archived from the original on 28 June 2020. Retrieved 24 March 2021.

[popleg2021-2] "Populations légales 2021" (in French). The National Institute of Statistics and Economic Studies. 28 December 2023.

[3] "Fiche Climatologique Statistiques 1991-2020 et records" (PDF). Météo-France. Archived (PDF) from the original on 21 August 2022. Retrieved 21 August 2022.

[pophist-4] Population en historique depuis 1968 Archived 26 July 2022 at the Wayback Machine , INSEE

[5] "CMS home page". Archived from the original on 15 November 2008. Retrieved 25 May 2010.

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