Sannohe (三戸町, Sannohe-machi) is a town located in Aomori Prefecture, Japan. As of 31 January 2023, the town had an estimated population of 9,146 in 4141 households,[1] and a population density of 60 persons per km2. The total area of the town is 151.79 square kilometres (58.61 sq mi).[2]

Sannohe
三戸町
Sannohe Town Hall
Sannohe Town Hall
Flag of Sannohe
Official seal of Sannohe
Map
Location of Sannohe in Aomori Prefecture
Location of Sannohe
Sannohe is located in Japan
Sannohe
Sannohe
 
Coordinates: 40°22′42.2″N 141°15′31.6″E / 40.378389°N 141.258778°E / 40.378389; 141.258778
CountryJapan
RegionTōhoku
PrefectureAomori
DistrictSannohe
Area
 • Total
151.79 km2 (58.61 sq mi)
Population
 (January 31, 2023)
 • Total
9,146
 • Density60/km2 (160/sq mi)
Time zoneUTC+9 (Japan Standard Time)
Phone number0179-20-1111
AddressZaifukojimachi, Sannohe-machi, Sannohe-gun, Aomori-ken 039-0132
ClimateCfa/Dfa
WebsiteOfficial website
Symbols
BirdEurasian scops-owl
FlowerFar East Amur adonis
TreePaulownia tomentosa
Reconstructed gate of Sannohe Castle

Geography

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Sannohe occupies an inland area in southeast corner of Aomori Prefecture, south of the Hakkōda Mountains. The terrain is relatively flat, with mountains extending in the northwestern part of the town. The Mabechi River flows from north to south through the center of the town.

Neighbouring municipalities

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Akita Prefecture

Aomori Prefecture

Iwate Prefecture

Climate

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The town has a cold maritime climate characterized by cool short summers and long cold winters with heavy snowfall (Köppen climate classification Cfa). The average annual temperature in Sannohe is 10.2 °C. The average annual rainfall is 1259 mm with September as the wettest month. The temperatures are highest on average in August, at around 22.9 °C, and lowest in January, at around -2.5 °C.[3]

Climate data for Sannohe (1991−2020 normals, extremes 1976−present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 14.4
(57.9)
18.2
(64.8)
21.6
(70.9)
30.0
(86.0)
34.7
(94.5)
35.6
(96.1)
37.7
(99.9)
37.4
(99.3)
35.0
(95.0)
28.7
(83.7)
25.2
(77.4)
18.7
(65.7)
37.7
(99.9)
Mean daily maximum °C (°F) 2.4
(36.3)
3.5
(38.3)
7.8
(46.0)
14.9
(58.8)
20.8
(69.4)
23.9
(75.0)
27.0
(80.6)
28.3
(82.9)
24.7
(76.5)
18.6
(65.5)
11.8
(53.2)
5.0
(41.0)
15.7
(60.3)
Daily mean °C (°F) −1.8
(28.8)
−1.2
(29.8)
2.4
(36.3)
8.5
(47.3)
14.2
(57.6)
18.0
(64.4)
21.8
(71.2)
22.9
(73.2)
18.8
(65.8)
12.1
(53.8)
6.0
(42.8)
0.6
(33.1)
10.2
(50.3)
Mean daily minimum °C (°F) −6.3
(20.7)
−6.1
(21.0)
−2.8
(27.0)
2.1
(35.8)
8.1
(46.6)
12.9
(55.2)
17.6
(63.7)
18.7
(65.7)
14.1
(57.4)
6.5
(43.7)
0.8
(33.4)
−3.6
(25.5)
5.2
(41.3)
Record low °C (°F) −17.6
(0.3)
−20.2
(−4.4)
−17.7
(0.1)
−8.7
(16.3)
−1.3
(29.7)
1.9
(35.4)
7.6
(45.7)
8.9
(48.0)
1.8
(35.2)
−2.9
(26.8)
−8.1
(17.4)
−17.0
(1.4)
−20.2
(−4.4)
Average precipitation mm (inches) 49.4
(1.94)
49.1
(1.93)
63.3
(2.49)
65.0
(2.56)
81.9
(3.22)
96.4
(3.80)
161.4
(6.35)
160.3
(6.31)
159.4
(6.28)
114.0
(4.49)
66.1
(2.60)
64.8
(2.55)
1,131.1
(44.53)
Average snowfall cm (inches) 111
(44)
109
(43)
77
(30)
5
(2.0)
0
(0)
0
(0)
0
(0)
0
(0)
0
(0)
0
(0)
3
(1.2)
65
(26)
367
(144)
Average precipitation days (≥ 1.0 mm) 10.4 10.2 10.4 10.2 10.3 9.2 11.6 11.7 11.1 10.5 11.2 10.6 127.4
Average snowy days (≥ 3 cm) 14.9 14.3 9.8 0.6 0 0 0 0 0 0 0.4 8.4 48.4
Mean monthly sunshine hours 102.3 105.3 153.5 181.5 190.7 157.6 136.5 152.7 141.2 148.9 121.9 102.6 1,694.7
Source: Japan Meteorological Agency[4][5]

Demographics

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Per Japanese census data,[6] the population of Sannohe peaked in the 1950s has steadily declined since. It is now less than it was a century ago.

Historical population
YearPop.±% p.a.
1920 12,714—    
1930 13,644+0.71%
1940 13,768+0.09%
1950 17,614+2.49%
1960 17,332−0.16%
1970 16,184−0.68%
1980 15,506−0.43%
1990 14,440−0.71%
2000 13,223−0.88%
2010 11,300−1.56%
2020 9,082−2.16%

History

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The area around Sannohe has been inhabited since ancient times, and numerous Jōmon period remains have been found. During the Kamakura period it was the center of the domains awarded to Nanbu Mitsuyuki, a retainer of Minamoto no Yoritomo after the defeat of the Northern Fujiwara clan in 1187. It remained under the control of the Nanbu clan through the Sengoku period as a castle town centered on Sannohe Castle. During the Edo period, came under the control of Morioka Domain, and a daikansho was established on the site of the former castle. It was proclaimed a town after Meiji Restoration, with the establishment of the modern municipalities system on 1 April 1889. On 20 March 1955, the three neighboring villages of Sarube, Tomesaki and Tonai merged with Sannohe.

Government

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Sannohe has a mayor-council form of government with a directly elected mayor and a unicameral town council of 14 members. Sannohe is part of Sannohe District which contributes three members to the Aomori Prefectural Assembly. In terms of national politics, the city is part of Aomori 2nd district of the lower house of the Diet of Japan.

Economy

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The economy of Sannohe is heavily dependent on agriculture, with tobacco as the main crop, followed by rice and apples. Due to its many historical relics, the town is also developing tourism as a mainstay of the local economy.

Education

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Sannohe has two public elementary schools and one public middle schools operated by the town government and one public high school operated by the Aomori Prefectural Board of Education.

Transportation

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Railway

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  Aoimori Railway Company - Aoimori Railway Line

Highway

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International relations

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Local attractions

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Noted people from Sannohe

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References

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  1. ^ "Sannohe town official statistics" (in Japanese). Japan.
  2. ^ 詳細データ 青森県三戸町. 市町村の姿 グラフと統計でみる農林水産業 (in Japanese). Ministry of Agriculture, Forestry and Fisheries. 2016. Retrieved 13 July 2017.
  3. ^ Sannohe climate data
  4. ^ 観測史上1~10位の値(年間を通じての値). JMA. Retrieved March 4, 2022.
  5. ^ 気象庁 / 平年値(年・月ごとの値). JMA. Retrieved March 4, 2022.
  6. ^ Sannohe population statistics
  7. ^ "International Exchange". List of Affiliation Partners within Prefectures. Council of Local Authorities for International Relations (CLAIR). Archived from the original on 22 November 2015. Retrieved 21 November 2015.
  8. ^ 青森県内の自然公園 [Natural Parks in Aomori Prefecture] (in Japanese). Aomori Prefecture. Retrieved 22 August 2012.
  9. ^ 名久井岳県立自然公園 [Nakuidake Prefectural Natural Park] (in Japanese). Aomori Prefecture. Retrieved 22 August 2012.
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