The town has a climate characterized by characterized by warm and humid summers, and cold winters with heavy snowfall (Köppen climate classificationDfb). The average annual temperature in Kiso is 10.8 °C (51.4 °F). The average annual rainfall is 1,926.7 mm (75.85 in) with July as the wettest month. The temperatures are highest on average in August, at around 23.2 °C (73.8 °F), and lowest in January, at around −1.4 °C (29.5 °F).[3]
Climate data for Kisofukushima, Kiso (1991−2020 normals, extremes 1976−present)
The area of present-day Kiso was part of ancient Shinano Province.
The modern town was created through a merger of the town of Kiso-Fukushima with the villages of Hiyoshi, Kaida and Mitake on November 1, 2005.
Demographics
Per Japanese census data,[7] the population of Kiso has decreased rapidly over the past 60 years and is now less than half of what it was in 1940.
Historical population
Year
Pop.
±%
1940
22,256
—
1950
22,190
−0.3%
1960
22,429
+1.1%
1970
18,868
−15.9%
1980
17,426
−7.6%
1990
15,789
−9.4%
2000
14,866
−5.8%
2010
12,743
−14.3%
2020
10,584
−16.9%
Education
Kiso has four public elementary schools and three public middle schools operated by the town government, and one high school operated the Nagano Prefectural Board of Education. The prefectural also operates a special education school. The Solar-Terrestrial Environment Laboratory, Nagoya University is located in Kiso.
Kurokawa Elementary School opened in 1928 and closed in 1997; in 2022 it became a museum showcasing wooden toys.[8]
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