# Athis-Mons

Athis-Mons (French: ) is a commune in the southern suburbs of Paris, France. It is located 16.5 km (10.3 mi) from the center of Paris.
Inhabitants are called Athégiens.
A small part of Orly International Airport lies on the territory of the commune of Athis-Mons, as do several of the hotels that serve the airport.

## History

Athis-Mons was formed in 1817 by joining two villages, Athis (along the Seine, and formerly known as Athis-sur-Orge) and Mons (on the adjacent plateau). Nowadays the lower area of the commune is commonly called Athis-Val.
During World War II, a significant portion (approximately 80%) of Athis-Mons was destroyed during the Allied bombing raid of 18 April 1944. Approximately 300 people died and 4,000 people were left homeless. Athis-Mons had to be entirely rebuilt after the war.

## Population

| Year | Pop. | ±% p.a. |
| 1793 | 338 | — |
| 1800 | 423 | +3.26% |
| 1806 | 435 | +0.47% |
| 1821 | 690 | +3.12% |
| 1831 | 690 | +0.00% |
| 1836 | 724 | +0.97% |
| 1841 | 705 | −0.53% |
| 1846 | 803 | +2.64% |
| 1851 | 771 | −0.81% |
| 1856 | 788 | +0.44% |
| 1861 | 780 | −0.20% |
| 1866 | 854 | +1.83% |
| 1872 | 910 | +1.06% |
| 1876 | 976 | +1.77% |
| 1881 | 1,038 | +1.24% |
| 1886 | 1,333 | +5.13% |
| 1891 | 1,591 | +3.60% |
| 1896 | 2,027 | +4.96% |
| Year | Pop. | ±% p.a. |
| 1901 | 2,612 | +5.20% |
| 1906 | 3,494 | +5.99% |
| 1911 | 4,627 | +5.78% |
| 1921 | 6,116 | +2.83% |
| 1926 | 7,969 | +5.44% |
| 1931 | 10,033 | +4.71% |
| 1936 | 10,962 | +1.79% |
| 1946 | 8,414 | −2.61% |
| 1954 | 14,120 | +6.69% |
| 1962 | 24,004 | +6.86% |
| 1968 | 27,640 | +2.38% |
| 1975 | 30,737 | +1.53% |
| 1982 | 28,496 | −1.08% |
| 1990 | 29,123 | +0.27% |
| 1999 | 29,427 | +0.12% |
| 2007 | 30,462 | +0.43% |
| 2012 | 29,482 | −0.65% |
| 2017 | 34,347 | +3.10% |
Graphs are unavailable due to technical issues. Updates on reimplementing the Graph extension, which will be known as the Chart extension, can be found on Phabricator and on MediaWiki.org. :
Source: EHESS and INSEE (1968-2017) :

## Geography

Athis-Mons is located at the confluence of Orge and Seine rivers, and at the southern edge of the international airport of Orly.

### Climate

Athis-Mons has an oceanic climate (Köppen climate classification Cfb). The average annual temperature in Athis-Mons is 12.1 °C (53.8 °F). The average annual rainfall is 622.2 mm (24.50 in) with May as the wettest month. The temperatures are highest on average in July, at around 20.4 °C (68.7 °F), and lowest in January, at around 4.7 °C (40.5 °F). The highest temperature ever recorded in Athis-Mons was 41.9 °C (107.4 °F) on 25 July 2019; the coldest temperature ever recorded was −16.8 °C (1.8 °F) on 17 January 1985.
Comparison of local Meteorological data with other cities in France :
| Town | Sunshine (hours/yr) | Rain (mm/yr) | Snow (days/yr) | Storm (days/yr) | Fog (days/yr) |
| National average | 1,973 | 770 | 14 | 22 | 40 |
| Athis-Mons | 1,831 | 615.4 | 15.1 | 21.7 | 28.1 |
| Paris | 1,661 | 637 | 12 | 18 | 10 |
| Nice | 2,724 | 767 | 1 | 29 | 1 |
| Strasbourg | 1,693 | 665 | 29 | 29 | 56 |
| Brest | 1,605 | 1,211 | 7 | 12 | 75 |
Climate data for Athis-Mons (Orly Airport, altitude 49m, 1991–2020 normals, extremes 1921–present) :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 16.5 (61.7) | 20.8 (69.4) | 25.3 (77.5) | 29.4 (84.9) | 35.0 (95.0) | 37.1 (98.8) | 41.9 (107.4) | 40.0 (104.0) | 34.4 (93.9) | 31.3 (88.3) | 21.8 (71.2) | 17.3 (63.1) | 41.9 (107.4) |
| Mean daily maximum °C (°F) | 7.2 (45.0) | 8.5 (47.3) | 12.5 (54.5) | 16.2 (61.2) | 19.8 (67.6) | 23.2 (73.8) | 25.8 (78.4) | 25.7 (78.3) | 21.5 (70.7) | 16.4 (61.5) | 10.9 (51.6) | 7.6 (45.7) | 16.3 (61.3) |
| Daily mean °C (°F) | 4.7 (40.5) | 5.2 (41.4) | 8.3 (46.9) | 11.3 (52.3) | 14.8 (58.6) | 18.2 (64.8) | 20.4 (68.7) | 20.2 (68.4) | 16.5 (61.7) | 12.6 (54.7) | 7.9 (46.2) | 5.2 (41.4) | 12.1 (53.8) |
| Mean daily minimum °C (°F) | 2.1 (35.8) | 2.0 (35.6) | 4.2 (39.6) | 6.4 (43.5) | 9.9 (49.8) | 13.1 (55.6) | 15.0 (59.0) | 14.6 (58.3) | 11.5 (52.7) | 8.7 (47.7) | 5.0 (41.0) | 2.7 (36.9) | 7.9 (46.2) |
| Record low °C (°F) | −16.8 (1.8) | −15.0 (5.0) | −9.4 (15.1) | −4.3 (24.3) | −1.3 (29.7) | 3.1 (37.6) | 6.7 (44.1) | 5.6 (42.1) | 1.7 (35.1) | −3.9 (25.0) | −9.6 (14.7) | −13.3 (8.1) | −16.8 (1.8) |
| Average precipitation mm (inches) | 46.8 (1.84) | 42.6 (1.68) | 44.4 (1.75) | 44.5 (1.75) | 63.0 (2.48) | 56.1 (2.21) | 52.9 (2.08) | 57.9 (2.28) | 47.4 (1.87) | 52.8 (2.08) | 53.4 (2.10) | 60.4 (2.38) | 622.2 (24.50) |
| Average precipitation days (≥ 1.0 mm) | 10.5 | 9.0 | 8.9 | 8.6 | 9.5 | 8.4 | 7.0 | 7.7 | 7.7 | 9.3 | 10.3 | 11.6 | 108.6 |
| Average snowy days | 3.6 | 4.3 | 2.0 | 0.4 | 0 | 0 | 0 | 0 | 0 | 0.1 | 0.6 | 2.3 | 13.2 |
| Mean monthly sunshine hours | 53.3 | 85.2 | 152.9 | 202.5 | 217.0 | 224.3 | 246.9 | 220.9 | 185.7 | 116.6 | 62.4 | 63.9 | 1,831.3 |
| Source: Météo-France ||||||||||||||

## Administration

The canton of Athis-Mons has 2 communes (the other is Paray-Vieille-Poste) and 36,615 inhabitants. Athis-Mons is a twin town of Ballina in Ireland.

## Transport

Athis-Mons is served by Athis-Mons station on Paris RER line C.

## Education

The commune has nine preschools (écoles maternelles) and eight elementary schools (écoles élémentaires).
* Preschools: Albert Calmette, Jules Ferry, Jean de la Fontaine, Pauline Kergomard, La Rougette, Charles Perrault, Jacques Prévert, Antoine de Saint-Exupéry,
* Elementary schools: Édouard Branly, Pierre et Marie Curie, Jules Ferry, Camille Flammarion, Jean Jaurès, Louis Pasteur, Antoine de Saint-Exupéry
* Combined preschools and elementary schools: Jean-Baptiste de la Salle
There is a private Catholic school, Groupe scolaire Saint-Charles d'Athis-Mons [fr].

## Museum

The city hosts the aviation museum Musée Delta.

## Twin towns - sister cities

Athis-Mons is twinned with:
* Ballina, Ireland
* Rothenburg ob der Tauber, Germany
* Sinaia, Romania