# Saint-Étienne-du-Bois, Ain

Saint-Étienne-du-Bois (French pronunciation:) is a commune in the Ain department, eastern France.

## Geography

The Sevron forms part of the commune's eastern border then flows northwest through the commune.

### Climate

Saint-Étienne-du-Bois has an oceanic climate (Köppen climate classification Cfb). The average annual temperature in Saint-Étienne-du-Bois is 11.5 °C (52.7 °F). The average annual rainfall is 1,137.6 mm (44.79 in) with October 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 2.6 °C (36.7 °F). The highest temperature ever recorded in Saint-Étienne-du-Bois was 39.4 °C (102.9 °F) on 13 August 2003; the coldest temperature ever recorded was −17.8 °C (0.0 °F) on 30 December 2005.
Climate data for Saint-Étienne-du-Bois (1981–2010 averages, extremes 1998−2020) :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 18.2 (64.8) | 20.0 (68.0) | 23.5 (74.3) | 28.8 (83.8) | 33.1 (91.6) | 37.3 (99.1) | 39.1 (102.4) | 39.4 (102.9) | 34.3 (93.7) | 27.5 (81.5) | 22.8 (73.0) | 17.5 (63.5) | 39.4 (102.9) |
| Mean daily maximum °C (°F) | 5.8 (42.4) | 7.9 (46.2) | 12.6 (54.7) | 16.7 (62.1) | 21.1 (70.0) | 25.1 (77.2) | 26.6 (79.9) | 26.1 (79.0) | 21.9 (71.4) | 17.0 (62.6) | 10.0 (50.0) | 5.9 (42.6) | 16.4 (61.5) |
| Daily mean °C (°F) | 2.6 (36.7) | 3.9 (39.0) | 7.5 (45.5) | 11.0 (51.8) | 15.4 (59.7) | 18.9 (66.0) | 20.4 (68.7) | 19.8 (67.6) | 16.3 (61.3) | 12.6 (54.7) | 6.6 (43.9) | 2.9 (37.2) | 11.5 (52.7) |
| Mean daily minimum °C (°F) | −0.7 (30.7) | −0.1 (31.8) | 2.4 (36.3) | 5.2 (41.4) | 9.7 (49.5) | 12.7 (54.9) | 14.2 (57.6) | 13.6 (56.5) | 10.7 (51.3) | 8.2 (46.8) | 3.2 (37.8) | 0.0 (32.0) | 6.6 (43.9) |
| Record low °C (°F) | −15.9 (3.4) | −16.5 (2.3) | −12.6 (9.3) | −6.7 (19.9) | −0.2 (31.6) | 2.8 (37.0) | 5.8 (42.4) | 3.5 (38.3) | 1.2 (34.2) | −5.8 (21.6) | −11.2 (11.8) | −17.8 (0.0) | −17.8 (0.0) |
| Average precipitation mm (inches) | 80.6 (3.17) | 83.7 (3.30) | 91.5 (3.60) | 92.3 (3.63) | 109.3 (4.30) | 67.3 (2.65) | 90.1 (3.55) | 96.8 (3.81) | 94.7 (3.73) | 127.4 (5.02) | 117.7 (4.63) | 86.2 (3.39) | 1,137.6 (44.79) |
| Average precipitation days (≥ 1.0 mm) | 12.5 | 10.6 | 11.7 | 9.8 | 12.3 | 7.8 | 9.3 | 10.7 | 9.2 | 12.3 | 12.6 | 12.3 | 131.0 |
| Source: Meteociel ||||||||||||||

## Population

| Year | Pop. | ±% p.a. |
| 1793 | 1,629 | — |
| 1800 | 1,405 | −2.09% |
| 1806 | 1,207 | −2.50% |
| 1821 | 1,521 | +1.55% |
| 1831 | 1,605 | +0.54% |
| 1836 | 1,640 | +0.43% |
| 1841 | 1,646 | +0.07% |
| 1846 | 1,672 | +0.31% |
| 1851 | 1,710 | +0.45% |
| 1856 | 1,648 | −0.74% |
| 1861 | 1,613 | −0.43% |
| 1866 | 1,652 | +0.48% |
| 1872 | 1,603 | −0.50% |
| 1876 | 1,558 | −0.71% |
| 1881 | 1,502 | −0.73% |
| 1886 | 1,607 | +1.36% |
| 1891 | 1,551 | −0.71% |
| 1896 | 1,528 | −0.30% |
| Year | Pop. | ±% p.a. |
| 1901 | 1,518 | −0.13% |
| 1906 | 1,507 | −0.15% |
| 1911 | 1,505 | −0.03% |
| 1921 | 1,368 | −0.95% |
| 1926 | 1,378 | +0.15% |
| 1931 | 1,382 | +0.06% |
| 1936 | 1,383 | +0.01% |
| 1946 | 1,422 | +0.28% |
| 1954 | 1,435 | +0.11% |
| 1962 | 1,349 | −0.77% |
| 1968 | 1,355 | +0.07% |
| 1975 | 1,443 | +0.90% |
| 1982 | 1,876 | +3.82% |
| 1990 | 1,982 | +0.69% |
| 1999 | 2,046 | +0.35% |
| 2007 | 2,397 | +2.00% |
| 2012 | 2,489 | +0.76% |
| 2017 | 2,448 | −0.33% |
Source: EHESS and INSEE (1968-2017) :