Kanna, Gunma
Geography
Kanna is located in the mountainous southwestern portion of Gunma Prefecture, bordered by Saitama Prefecture to the south.
Surrounding municipalities
Climate
Kanna has a Humid continental climate (Köppen Cfa) characterized by warm summers and cold winters with heavy snowfall. The average annual temperature in Kanna is 10.7 °C. The average annual rainfall is 1195 mm with September as the wettest month. The temperatures are highest on average in August, at around 23.7 °C, and lowest in January, at around -1.7 °C.
| Climate data for Kanna (1991−2020 normals, extremes 1977−present) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 18.3 (64.9) |
23.2 (73.8) |
24.6 (76.3) |
32.7 (90.9) |
34.4 (93.9) |
36.9 (98.4) |
38.7 (101.7) |
37.3 (99.1) |
37.5 (99.5) |
31.6 (88.9) |
23.8 (74.8) |
21.9 (71.4) |
38.7 (101.7) |
| Mean daily maximum °C (°F) | 7.6 (45.7) |
8.7 (47.7) |
12.1 (53.8) |
17.6 (63.7) |
22.2 (72.0) |
24.5 (76.1) |
28.2 (82.8) |
29.3 (84.7) |
24.9 (76.8) |
19.4 (66.9) |
14.6 (58.3) |
9.9 (49.8) |
18.3 (64.9) |
| Daily mean °C (°F) | 0.6 (33.1) |
1.7 (35.1) |
5.3 (41.5) |
10.8 (51.4) |
15.8 (60.4) |
19.3 (66.7) |
23.0 (73.4) |
23.8 (74.8) |
19.8 (67.6) |
13.9 (57.0) |
7.6 (45.7) |
2.6 (36.7) |
12.0 (53.6) |
| Mean daily minimum °C (°F) | −4.1 (24.6) |
−3.5 (25.7) |
−0.3 (31.5) |
4.6 (40.3) |
10.1 (50.2) |
15.1 (59.2) |
19.3 (66.7) |
20.1 (68.2) |
16.3 (61.3) |
10.0 (50.0) |
2.9 (37.2) |
−2.0 (28.4) |
7.4 (45.3) |
| Record low °C (°F) | −10.3 (13.5) |
−11.6 (11.1) |
−9.0 (15.8) |
−4.5 (23.9) |
0.0 (32.0) |
6.0 (42.8) |
12.1 (53.8) |
11.4 (52.5) |
6.0 (42.8) |
−0.3 (31.5) |
−4.7 (23.5) |
−8.2 (17.2) |
−11.6 (11.1) |
| Average precipitation mm (inches) | 32.1 (1.26) |
24.7 (0.97) |
58.9 (2.32) |
74.2 (2.92) |
97.1 (3.82) |
143.4 (5.65) |
181.5 (7.15) |
180.9 (7.12) |
224.3 (8.83) |
173.5 (6.83) |
37.4 (1.47) |
22.4 (0.88) |
1,250.2 (49.22) |
| Average precipitation days (≥ 1.0 mm) | 3.7 | 3.7 | 7.8 | 8.3 | 10.1 | 13.6 | 15.2 | 12.7 | 12.6 | 9.7 | 5.2 | 3.7 | 106.3 |
| Mean monthly sunshine hours | 213.7 | 209.0 | 212.7 | 211.5 | 203.6 | 137.4 | 147.1 | 159.2 | 122.9 | 142.0 | 182.0 | 193.7 | 2,134.8 |
| Source: JMA | |||||||||||||
Demographics
Per Japanese census data, the town's population has dropped precipitously from its 1950 peak, with the remaining population having the second oldest median age in Japan after Nanmoku, Gunma (61.5% over the age or 65). The town is thus classified as a genkai shūraku.
| Year | Pop. | ±% |
|---|---|---|
| 1920 | 8,832 | — |
| 1930 | 8,706 | −1.4% |
| 1940 | 8,352 | −4.1% |
| 1950 | 9,881 | +18.3% |
| 1960 | 8,733 | −11.6% |
| 1970 | 6,878 | −21.2% |
| 1980 | 5,469 | −20.5% |
| 1990 | 4,154 | −24.0% |
| 2000 | 3,210 | −22.7% |
| 2010 | 2,352 | −26.7% |
| 2020 | 1,645 | −30.1% |
History
During the Edo period, the area of present-day Kanna was part of the tenryō territory administered directly by the Tokugawa shogunate in Kōzuke Province.
Kamikawa village and Nakasato village were established within Minamikanra District, Gunma Prefecture on April 1, 1889 with the creation of the modern municipalities system after the Meiji Restoration. In 1896 Minamikanra District was united with Midono and Tago Districts to create Tano District. Kamikawa village was elevated to town status in 1926 and renamed Manba town. On April 1, 2003, Manba and Nakasato merged, forming the town of Kanna.
Government
Kanna has a mayor-council form of government with a directly elected mayor and a unicameral town council of 8 members. Kanna, together with the city of Fujioka and village of Ueno contributes two members to the Gunma Prefectural Assembly. In terms of national politics, the town is part of Gunma 4th district of the lower house of the Diet of Japan.
Economy
The economy of Kanna is heavily dependent on agriculture.
Education
Kanna has one public elementary school and one public middle school operated by the town government. The town has one public high school operated by the Gunma Prefectural Board of Education.
Transportation
Railway
Kanna does not have any passenger railway service.
Highway
Local attractions
- Kanna Dinosaur Center
- Roadside Station Manba no Sato
- Ryūshōji (A temple famed for its cherry blossoms)
- Sazanamiiwa (The location of the dinosaur footprint)
References
- ^ "Kanna city population". citypopulation. Retrieved 2022-09-26.
- ^ Kanna climate data
- ^ 観測史上1～10位の値（年間を通じての値）. JMA. Retrieved February 26, 2022.
- ^ 気象庁 / 平年値（年・月ごとの値）. JMA. Retrieved February 26, 2022.
External links
Media related to Kanna, Gunma at Wikimedia Commons- Official Website (in Japanese)
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