Tatsuno, Nagano

Tatsuno is located in the Ina Valley of south-central Nagano Prefecture, bordered by the Kiso Mountains. The Tenryū River flows through the town, which is surrounded by mountains and is rich in a natural environment. It is takes about 3 hours from Tokyo, 2 hours from Nagoya, 5 hours from Kyoto by train and equally by car. Part of the town is within the borders of the Enrei Ōjō Prefectural Natural Park. The Yokokawa Dam is located in Tatsuno.

• Nagano Prefecture
• Minamiminowa
• Minowa
• Okaya
• Shiojiri
• Suwa

The village has a climate characterized by characterized by warm and humid summers, and cold winters (Köppen climate classification Dfa). The average annual temperature in Tatsuno is {{cvt|11.1|C}}. The average annual rainfall is {{cvt|1435.8|mm}} with July as the wettest month. The temperatures are highest on average in August, at around {{cvt|23.6|C}}, and lowest in January, at around {{cvt|-1.2|C}}.

{{Weather box

|width = auto

|collapsed = Y

|single line = Y

|metric first = Y

|location = Tatsuno (1991−2020 normals, extremes 1978−present)

|Jan record high C = 15.1

|Feb record high C = 18.4

|Mar record high C = 25.5

|Apr record high C = 29.5

|May record high C = 32.6

|Jun record high C = 35.7

|Jul record high C = 36.4

|Aug record high C = 36.4

|Sep record high C = 34.1

|Oct record high C = 29.0

|Nov record high C = 23.0

|Dec record high C = 18.8

|Jan record low C = -16.7

|Feb record low C = -17.2

|Mar record low C = -16.2

|Apr record low C = -8.0

|May record low C = -0.5

|Jun record low C = 4.6

|Jul record low C = 11.5

|Aug record low C = 11.2

|Sep record low C = 3.7

|Oct record low C = -2.1

|Nov record low C = -7.7

|Dec record low C = -14.8

|Jan high C = 3.9

|Feb high C = 5.3

|Mar high C = 10.0

|Apr high C = 16.6

|May high C = 22.0

|Jun high C = 24.9

|Jul high C = 28.4

|Aug high C = 29.9

|Sep high C = 25.0

|Oct high C = 18.7

|Nov high C = 12.8

|Dec high C = 6.9

|Jan mean C = -1.2

|Feb mean C = -0.3

|Mar mean C = 3.6

|Apr mean C = 9.7

|May mean C = 15.2

|Jun mean C = 19.0

|Jul mean C = 22.8

|Aug mean C = 23.6

|Sep mean C = 19.3

|Oct mean C = 12.9

|Nov mean C = 6.7

|Dec mean C = 1.5

|Jan low C = -6.1

|Feb low C = -5.6

|Mar low C = -1.9

|Apr low C = 3.3

|May low C = 9.1

|Jun low C = 14.2

|Jul low C = 18.7

|Aug low C = 19.3

|Sep low C = 15.2

|Oct low C = 8.5

|Nov low C = 1.8

|Dec low C = -3.1

|precipitation colour = green

|Jan precipitation mm = 45.6

|Feb precipitation mm = 58.1

|Mar precipitation mm = 102.5

|Apr precipitation mm = 106.5

|May precipitation mm = 129.7

|Jun precipitation mm = 174.2

|Jul precipitation mm = 214.4

|Aug precipitation mm = 149.7

|Sep precipitation mm = 179.1

|Oct precipitation mm = 146.7

|Nov precipitation mm = 78.4

|Dec precipitation mm = 50.9

|year precipitation mm = 1435.8

|unit precipitation days = 1.0 mm

|Jan precipitation days = 6.4

|Feb precipitation days = 6.2

|Mar precipitation days = 9.7

|Apr precipitation days = 9.5

|May precipitation days = 10.4

|Jun precipitation days = 12.6

|Jul precipitation days = 13.6

|Aug precipitation days = 10.2

|Sep precipitation days = 11.0

|Oct precipitation days = 9.3

|Nov precipitation days = 7.6

|Dec precipitation days = 7.1

|Jan sun = 164.2

|Feb sun = 168.1

|Mar sun = 187.6

|Apr sun = 195.4

|May sun = 202.6

|Jun sun = 160.9

|Jul sun = 162.1

|Aug sun = 194.2

|Sep sun = 145.7

|Oct sun = 151.0

|Nov sun = 156.4

|Dec sun = 156.7

|year sun = 2044.0

|source 1 = Japan Meteorological Agency{{cite web

| url = https://www.data.jma.go.jp/obd/stats/etrn/view/rank_a.php?prec_no=48&block_no=1319&year=&month=&day=&view=h0

|script-title=ja:観測史上1～10位の値（年間を通じての値）

| publisher = JMA

| access-date = April 20, 2022}}{{cite web

| url = https://www.data.jma.go.jp/obd/stats/etrn/view/nml_amd_ym.php?prec_no=48&block_no=1319&year=&month=&day=&view=h0

|script-title=ja:気象庁 / 平年値（年・月ごとの値）

| publisher = JMA

| access-date = April 20, 2022}}}}

The area of present-day Tatsuno was part of ancient Shinano Province. The village of Inatomi established on April 1, 1889, by the establishment of the municipalities system, and was elevated to town status on January 1, 1947, changing its name to Tatsuno at that time. The neighboring village of Asahi was annexed on April 1, 1955, followed by Kawashima on September 30, 1956, and Ono on March 31, 1961.

Per Japanese census data,[https://www.citypopulation.de/php/japan-nagano.php Tatsuno population statistics] the population of Tatsuno has declined slightly in recent decades.

{{Historical populations

| 1940 | 20,842

| 1950 | 24,146

| 1960 | 22,419

| 1970 | 22,351

| 1980 | 23,894

| 1990 | 23,901

| 2000 | 22,407

| 2010 | 20,909

| 2020 | 18,555

|align = none

| footnote =

}}

Tatsuno has five public elementary schools and five public middle school operated by the town government, and one high school operated the Nagano Prefectural Board of Education. The Shinshu Honan Junior College is also located in Tatsuno.

• 20px East Japan Railway Company - Chūō Main Line (old line)
• {{STN|Tatsuno|x|Nagano}} - {{STN|Shinano-Kawashima|x}} - {{STN|Ono|x|Nagano}}
• 20px Central Japan Railway Company - Iida Line
• {{STN|Haba|x|Nagano}} - {{STN|Ina-Shimmachi|x}} - {{STN|Miyaki|x}} - {{STN|Tatsuno|x|Nagano}}

• Image:JP Expressway E20.svg Chūō Expressway
• {{jct|country=JPN|Route|153}}

• {{flagicon|New Zealand}} - Waitomo, New Zealand.

• Enrei Ōjō Prefectural Natural Park
• {{Nihongo|Matsuo-kyo|松尾峡}}: one of the most famous places in Japan for fireflies (called {{Nihongo|Genji fireflies|ゲンジボタル}} in Japan) every summer. However, the intentional introduction of non-native fireflies and its negative influence on the native fireflies of Tatsuno were highlighted in an academic journal.Y. Iguchi (2009) The ecological impact of an introduced population on a native population in the firefly Luciola cruciata (Coleoptera: Lampyridae).Biodiversity and Conservation, 18: 82119-2126. https://doi.org/10.1007%2Fs10531-009-9576-8. and several major newspapers.Asahi Shimbun (Jun 17, 2008; Nagano Chunan edition, p27).Mainichi Shimbun (Jun 22, 2008; Nagano Nanshin edition, p25).Yomiuri Shimbun (July 28, 2008; evening edition, p13).

{{reflist}}

• {{Commons category-inline}}
• [http://www.town.tatsuno.nagano.jp/ Official Website] {{in lang|ja}}

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{{Nagano}}

Category:Towns in Nagano Prefecture

{{Nagano-geo-stub}}