# Herblay-sur-Seine

Herblay-sur-Seine (French pronunciation:, lit. "Herblay-on-Seine"; before 2018: Herblay) is a commune in the Val-d'Oise department in the Île-de-France region in Northern France. It is located 20.2 km (12.6 mi) from the centre of Paris, in its northwestern outer suburbs, on the departmental border with Yvelines. It is twinned with Yeovil, England.

## Geography
### Climate

Herblay-sur-Seine has an oceanic climate (Köppen climate classification Cfb). The average annual temperature in Herblay-sur-Seine is 11.8 °C (53.2 °F). The average annual rainfall is 612.5 mm (24.11 in) with October as the wettest month. The temperatures are highest on average in July, at around 19.7 °C (67.5 °F), and lowest in December, at around 4.6 °C (40.3 °F). The highest temperature ever recorded in Herblay-sur-Seine was 40.1 °C (104.2 °F) on 6 August 2003; the coldest temperature ever recorded was −13.5 °C (7.7 °F) on 7 January 2009.
Climate data for Herblay-sur-Seine (1981−2010 normals, extremes 1989−2014) :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 16.0 (60.8) | 20.5 (68.9) | 24.6 (76.3) | 27.0 (80.6) | 32.5 (90.5) | 36.8 (98.2) | 37.2 (99.0) | 40.1 (104.2) | 32.5 (90.5) | 29.4 (84.9) | 19.0 (66.2) | 17.7 (63.9) | 40.1 (104.2) |
| Mean daily maximum °C (°F) | 7.2 (45.0) | 8.8 (47.8) | 12.8 (55.0) | 15.4 (59.7) | 19.8 (67.6) | 22.7 (72.9) | 25.1 (77.2) | 25.1 (77.2) | 21.2 (70.2) | 16.1 (61.0) | 10.7 (51.3) | 7.0 (44.6) | 16.0 (60.8) |
| Daily mean °C (°F) | 4.6 (40.3) | 5.5 (41.9) | 8.6 (47.5) | 10.6 (51.1) | 14.6 (58.3) | 17.4 (63.3) | 19.7 (67.5) | 19.6 (67.3) | 16.1 (61.0) | 12.4 (54.3) | 7.7 (45.9) | 4.6 (40.3) | 11.8 (53.2) |
| Mean daily minimum °C (°F) | 2.1 (35.8) | 2.2 (36.0) | 4.3 (39.7) | 5.8 (42.4) | 9.5 (49.1) | 12.2 (54.0) | 14.2 (57.6) | 14.1 (57.4) | 11.1 (52.0) | 8.5 (47.3) | 4.7 (40.5) | 2.1 (35.8) | 7.6 (45.7) |
| Record low °C (°F) | −13.5 (7.7) | −12.8 (9.0) | −9.7 (14.5) | −3.0 (26.6) | 0.3 (32.5) | 2.1 (35.8) | 5.9 (42.6) | 5.2 (41.4) | 2.3 (36.1) | −3.5 (25.7) | −9.9 (14.2) | −11.6 (11.1) | −13.5 (7.7) |
| Average precipitation mm (inches) | 45.3 (1.78) | 44.2 (1.74) | 45.2 (1.78) | 50.7 (2.00) | 53.2 (2.09) | 51.8 (2.04) | 54.6 (2.15) | 51.7 (2.04) | 42.8 (1.69) | 61.3 (2.41) | 51.4 (2.02) | 60.3 (2.37) | 612.5 (24.11) |
| Average precipitation days (≥ 1.0 mm) | 9.0 | 9.3 | 9.9 | 10.0 | 9.0 | 8.6 | 7.9 | 8.1 | 8.1 | 9.6 | 10.8 | 11.1 | 111.0 |
| Source: Météo-France ||||||||||||||

## Demographics

| Year | Pop. | ±% p.a. |
| 1793 | 1,524 | — |
| 1800 | 1,364 | −1.57% |
| 1806 | 1,377 | +0.16% |
| 1821 | 1,396 | +0.09% |
| 1831 | 1,564 | +1.14% |
| 1836 | 1,576 | +0.15% |
| 1841 | 1,574 | −0.03% |
| 1846 | 1,605 | +0.39% |
| 1851 | 1,582 | −0.29% |
| 1856 | 1,592 | +0.13% |
| 1861 | 1,641 | +0.61% |
| 1866 | 1,611 | −0.37% |
| 1872 | 1,699 | +0.89% |
| 1876 | 1,631 | −1.02% |
| 1881 | 1,625 | −0.07% |
| 1886 | 1,681 | +0.68% |
| 1891 | 1,798 | +1.35% |
| 1896 | 2,033 | +2.49% |
| Year | Pop. | ±% p.a. |
| 1901 | 1,990 | −0.43% |
| 1906 | 2,190 | +1.93% |
| 1911 | 2,339 | +1.33% |
| 1921 | 2,898 | +2.17% |
| 1926 | 4,258 | +8.00% |
| 1931 | 5,471 | +5.14% |
| 1936 | 5,800 | +1.17% |
| 1946 | 5,937 | +0.23% |
| 1954 | 7,452 | +2.88% |
| 1962 | 10,220 | +4.03% |
| 1968 | 12,264 | +3.09% |
| 1975 | 16,397 | +4.24% |
| 1982 | 19,647 | +2.62% |
| 1990 | 22,135 | +1.50% |
| 1999 | 23,083 | +0.47% |
| 2009 | 25,763 | +1.10% |
| 2014 | 27,692 | +1.45% |
| 2020 | 31,747 | +2.30% |
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 (1968–2020) :

## Transport

Herblay-sur-Seine is served by Herblay station on the Transilien Paris-Saint-Lazare suburban rail line.

## Education

Schools in Herblay-sur-Seine:
* Six primary school : Jean-Louis Etienne, Jean Moulin, Buttes Blanches, Chênes, Tournade, Saint-Exupéry
* Seven public preschools (maternelles): Jean Moulin, Buttes Blanches, Chênes, Tournade, Saint-Exupéry, Louis Pergaud, Jean Jaurès
* Seven public elementary schools: Jean Moulin, Pasteur, Buttes Blanches, Chênes, Saint Exupéry, Marie Curie, Jean Jaurès
* Two public junior high schools (collèges): Georges Duhamel and Jean Vilar
* Lycée Montesquieu (public senior high school/sixth-form college)
* Three private schools: Sainte Jeanne d'Arc, Montaigne, Léonard de Vinci
The commune has a municipal library.

## People from Herblay

    See Category:People from Herblay
* Pierre Pincemaille (1956-2018), musician and organist.