Ōnan, Shimane
Onan (邑南町, Ōnan-chō) is a town located in Ōchi District, Shimane Prefecture, Japan. It is about an hour's drive north of Hiroshima. It was formed on October 1, 2004, from the merger of the towns of Iwami, Mizuho, and the village of Hasumi. As of March 1, 2017, the town has a population of 10,922 and a density of 26 persons per km2. The area is 419.29 km2.
Onan
邑南町 | |
|---|---|
Town | |
 Ōnan town hall | |
 Flag  Seal | |
 Location of Onan in Shimane Prefecture | |
  Onan Location in Japan | |
| Coordinates: 34°53′35″N 132°26′19″E | |
| Country | Japan |
| Region | Chūgoku San'in |
| Prefecture | Shimane Prefecture |
| District | Ōchi |
| Government | |
| • Mayor | Ishibashi Ryoji |
| Area | |
| • Total | 419.29 km2 (161.89 sq mi) |
| Population (March 1, 2017) | |
| • Total | 10,922 |
| • Density | 26/km2 (67/sq mi) |
| Time zone | UTC+09:00 (JST) |
| City hall address | 島根県邑智郡邑南町矢上6000 696-0192 |
| Climate | Cfa |
| Website | www |
Iwami Airport in nearby Masuda, Hiroshima Airport and Izumo Airport serve the town.
Geography
Climate
Ōnan has a humid subtropical climate (Köppen climate classification Cfa) with very warm summers and cool winters. Precipitation is abundant throughout the year. The average annual temperature in Ōnan is 12.1 °C (53.8 °F). The average annual rainfall is 1,885.0 mm (74.21 in) with July as the wettest month. The temperatures are highest on average in August, at around 24.3 °C (75.7 °F), and lowest in January, at around 0.7 °C (33.3 °F).[1] The highest temperature ever recorded in Ōnan was 36.5 °C (97.7 °F) on 8 August 1994; the coldest temperature ever recorded was −16.3 °C (2.7 °F) on 28 February 1981.[2]
| Climate data for Mizuho, Ōnan (1991−2020 normals, extremes 1978−present) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 16.7 (62.1) |
20.5 (68.9) |
23.7 (74.7) |
30.3 (86.5) |
32.2 (90.0) |
33.9 (93.0) |
36.4 (97.5) |
36.5 (97.7) |
35.0 (95.0) |
30.1 (86.2) |
23.9 (75.0) |
18.8 (65.8) |
36.5 (97.7) |
| Average high °C (°F) | 5.2 (41.4) |
6.7 (44.1) |
11.5 (52.7) |
17.9 (64.2) |
23.0 (73.4) |
25.7 (78.3) |
29.1 (84.4) |
30.5 (86.9) |
25.9 (78.6) |
20.3 (68.5) |
14.3 (57.7) |
7.8 (46.0) |
18.2 (64.7) |
| Daily mean °C (°F) | 0.7 (33.3) |
1.4 (34.5) |
5.0 (41.0) |
10.6 (51.1) |
15.7 (60.3) |
19.6 (67.3) |
23.6 (74.5) |
24.3 (75.7) |
20.0 (68.0) |
13.6 (56.5) |
7.9 (46.2) |
2.8 (37.0) |
12.1 (53.8) |
| Average low °C (°F) | −2.9 (26.8) |
−3.0 (26.6) |
−0.9 (30.4) |
3.6 (38.5) |
8.9 (48.0) |
14.6 (58.3) |
19.4 (66.9) |
19.9 (67.8) |
15.4 (59.7) |
8.2 (46.8) |
2.7 (36.9) |
−1.1 (30.0) |
7.1 (44.7) |
| Record low °C (°F) | −12.6 (9.3) |
−16.3 (2.7) |
−10.1 (13.8) |
−5.9 (21.4) |
−1.9 (28.6) |
3.9 (39.0) |
9.2 (48.6) |
10.9 (51.6) |
2.1 (35.8) |
−1.9 (28.6) |
−5.0 (23.0) |
−11.3 (11.7) |
−16.3 (2.7) |
| Average precipitation mm (inches) | 151.8 (5.98) |
130.9 (5.15) |
145.9 (5.74) |
126.3 (4.97) |
139.7 (5.50) |
194.6 (7.66) |
260.9 (10.27) |
169.9 (6.69) |
201.7 (7.94) |
112.7 (4.44) |
95.5 (3.76) |
155.3 (6.11) |
1,885 (74.21) |
| Average snowfall cm (inches) | 115 (45) |
86 (34) |
21 (8.3) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
1 (0.4) |
49 (19) |
272 (107) |
| Average precipitation days (≥ 1.0 mm) | 18.3 | 15.3 | 14.5 | 11.3 | 10.1 | 12.3 | 13.5 | 10.7 | 11.2 | 9.4 | 11.4 | 17.0 | 155 |
| Average snowy days (≥ 3 cm) | 9.8 | 7.5 | 1.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.1 | 3.9 | 22.8 |
| Mean monthly sunshine hours | 66.0 | 82.2 | 137.8 | 177.8 | 200.0 | 144.2 | 149.4 | 182.5 | 140.7 | 146.3 | 109.3 | 75.8 | 1,612 |
| Source: Japan Meteorological Agency[2][1] | |||||||||||||
Demographics
Per Japanese census data, the population of Ōnan in 2020 is 10,163 people.[3] Ōnan has been conducting censuses since 1960.
| Year | Pop. | ±% |
|---|---|---|
| 1960 | 25,547 | — |
| 1965 | 21,359 | −16.4% |
| 1970 | 17,919 | −16.1% |
| 1975 | 16,659 | −7.0% |
| 1980 | 15,734 | −5.6% |
| 1985 | 15,795 | +0.4% |
| 1990 | 15,117 | −4.3% |
| 1995 | 14,456 | −4.4% |
| 2000 | 13,866 | −4.1% |
| 2005 | 12,944 | −6.6% |
| 2010 | 11,966 | −7.6% |
| 2015 | 11,101 | −7.2% |
| 2020 | 10,163 | −8.4% |
| Ōnan population statistics[3] | ||
References
- 気象庁 / 平年値（年・月ごとの値）. JMA. Retrieved April 24, 2022.
- 観測史上1～10位の値（年間を通じての値）. JMA. Retrieved April 24, 2022.
- Ōnan population statistics
External links
Media related to Onan, Shimane at Wikimedia Commons- Ohnan official website (in Japanese)
- Ohnan Tourism Association
- Report on Town Statistical Depiction (Japanese)