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Komagane, Japan

Full City Profile

4.2 /5.0
A Great
32,202 Population 503/sq mi density
2,100 ft Elevation 640 meters
49°F Avg Temperature 9°C
A
Overall
4.2 / 5.0
Strong
B
Economy
3.3 / 5.0
$30,100 median income, 2.1% unemployment
A+
Affordability
5.0 / 5.0
$76,000 home value, $380/mo rent
Komagane experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 27°F in January while summers reach 69°F in July. The area gets 224 sunny days per year. Annual precipitation totals 61.9 inches. The area receives 9.8 inches of snow annually.

Temperature

27°F Jan (-3°C) 69°F Jul (20°C)
Annual Average48.5°F
10% below US avg
January Average27°F (-3°C)
July Average69°F (20°C)
Sunny Days224 days/yr

Geography

Elevation2,100 ft (640 m)
Area64.0 sq mi (165.9 km²)
Population Density503/sq mi
Coordinates35.7166°N, 137.9375°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 61.9"
63% above US avg
Snowfall 9.8"
Wettest Month (Sep) 8.86"
Driest Month (Dec) 1.57"

Air Quality

Earthquake History

550 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.2. Most recent: M4.1 on Aug 24, 2025.

Mar 11, 2011 13 km E of Arai, Japan M6.2 150 km
Aug 10, 2009 8 km NE of Sagara, Japan M6.2 112 km
Mar 15, 2011 6 km NNW of Fujinomiya, Japan M6.0 77 km
Jan 15, 2007 15 km WSW of Heda, Japan M5.9 112 km
Aug 1, 2011 20 km E of ?yama, Japan M5.9 129 km
Mar 11, 2011 eastern Honshu, Japan M5.7 140 km
Mar 4, 1997 9 km SSW of It?, Japan M5.6 136 km
Mar 16, 1997 5 km NE of Toyokawa, Japan M5.6 106 km
Apr 20, 2006 16 km SE of It?, Japan M5.6 150 km
Mar 6, 1996 13 km NNE of Gotenba, Japan M5.6 100 km
May 3, 1998 14 km SW of It?, Japan M5.6 134 km
Apr 11, 2011 8 km WSW of Iiyama, Japan M5.5 125 km
Aug 15, 1998 22 km WSW of Hotaka, Japan M5.5 67 km
Mar 15, 2012 3 km ENE of ?me, Japan M5.5 121 km
Aug 26, 2010 25 km ENE of Katsuyama, Japan M5.4 114 km
Apr 3, 2001 10 km NE of Mori, Japan M5.4 91 km
Jun 26, 1990 near the south coast of Honshu, Japan M5.4 135 km
Oct 5, 2011 24 km W of ?machi, Japan M5.3 90 km
Jun 5, 1990 13 km NE of Gotenba, Japan M5.3 106 km
Apr 23, 2020 18 km WNW of Shiojiri, Japan M5.2 52 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

35 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 3. Most recent: Faxai (2019).

Year Name Category Closest
2019 Faxai Category 3 166 km
2019 Hagibis Category 2 133 km
2018 Jebi Category 2 213 km
2018 Jongdari Category 1 155 km
2017 Lan Category 1 266 km
2016 Mindulle Category 1 212 km
2014 Phanfone Category 1 100 km
2011 Roke Category 2 92 km
2009 Melor Category 1 227 km
2008 Sinlaku Category 1 264 km
2007 Fitow Category 1 115 km
2005 Mawar Category 2 147 km
2004 Ma-on Category 3 123 km
2004 Chaba Category 1 247 km
2003 Etau Category 1 158 km
2002 Higos Category 2 161 km
2001 Danas Category 1 149 km
2000 Kirogi Category 1 254 km
1998 Vicki Category 2 116 km
1998 Zeb Category 1 219 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

11 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).

Year Location Cause Max Wave Deaths Distance
1855 ENSHUNADA Earthquake 3.0 m 139 km
1945 TOKAIDO Earthquake 1.0 m 2,306 131 km
2009 HONSHU: S COAST Earthquake 0.6 m 1 112 km
1974 TOKAIDO Earthquake 0.2 m 30 142 km
1857 TOKAIDO Earthquake 107 km
1666 AICHI PREFECTURE Earthquake 130 km
1633 SAGAMI BAY Earthquake 150 128 km
1589 SURUGA, JAPAN Earthquake 105 km
1586 ISE BAY Earthquake 8,000 130 km
1241 KAMAKURA, SAGAMI BAY Earthquake 144 km
818 TOKAIDO Eruption + Earthquake 136 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

15 volcanoes within 200 km. Closest: Ontakesan (46 km).

Name Type Elevation Last Eruption Distance
Ontakesan Complex 3,067 m (10,062 ft) 2014 46 km
Yokodake Stratovolcano(es) 2,480 m (8,136 ft) 1200 54 km
Norikuradake Stratovolcano(es) 3,026 m (9,928 ft) -50 55 km
Yakedake Stratovolcano(es) 2,455 m (8,054 ft) 1995 65 km
Fujisan Stratovolcano 3,776 m (12,388 ft) 1708 82 km
Washiba-Kumonotaira Shield(s) 2,924 m (9,593 ft) Unknown 83 km
Asamayama Complex 2,568 m (8,425 ft) 2019 93 km
Midagahara Stratovolcano 2,621 m (8,599 ft) 1839 100 km
Hakoneyama Complex 1,438 m (4,718 ft) 2015 112 km
Kusatsu-Shiranesan Stratovolcano(es) 2,165 m (7,103 ft) 2018 113 km
Hakusan Stratovolcano 2,702 m (8,865 ft) 1659 116 km
Harunasan Stratovolcano 1,449 m (4,754 ft) 550 118 km
Shiga Shield(s) 2,041 m (6,696 ft) Unknown 120 km
Myokosan Stratovolcano 2,454 m (8,051 ft) -750 132 km
Niigata-Yakeyama Lava dome 2,400 m (7,874 ft) 1998 134 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 27°F (-3°C) 1.8 in Coldest
February 28°F (-2°C) 2.4 in
March 35°F (1°C) 4.1 in
April 46°F (8°C) 5.4 in
May 55°F (13°C) 5.6 in
June 62°F (17°C) 8.7 in
July 69°F (20°C) 8.2 in
August 71°F (22°C) 7.5 in Warmest
September 63°F (17°C) 8.9 in Wettest
October 52°F (11°C) 5.0 in
November 42°F (6°C) 2.8 in
December 32°F (0°C) 1.6 in Driest

Komagane has a seasonal temperature swing of 44°F / from 27°F in January to 71°F in August. Total annual precipitation is 61.8 inches, with September being the wettest month (8.9") and December the driest (1.6").

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