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Tōmi, Japan

Full City Profile

4.2 /5.0
A Great
30,122 Population 695/sq mi density
2,096 ft Elevation 639 meters
46°F Avg Temperature 8°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
Tōmi experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 24°F in January while summers reach 67°F in July. The area gets 235 sunny days per year. Annual precipitation totals 55.9 inches. The area receives 8.4 inches of snow annually.

Temperature

24°F Jan (-4°C) 67°F Jul (19°C)
Annual Average46.1°F
15% below US avg
January Average24°F (-4°C)
July Average67°F (19°C)
Sunny Days235 days/yr

Geography

Elevation2,096 ft (639 m)
Area43.4 sq mi (112.3 km²)
Population Density695/sq mi
Coordinates36.3558°N, 138.3609°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 55.9"
47% above US avg
Snowfall 8.4"
Wettest Month (Sep) 8.11"
Driest Month (Dec) 1.42"

Air Quality

Earthquake History

744 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.6. Most recent: M4.1 on Aug 23, 2025.

Jul 16, 2007 20 km NNW of Kashiwazaki, Japan M6.6 131 km
Mar 11, 2011 13 km E of Arai, Japan M6.2 73 km
Mar 15, 2011 6 km NNW of Fujinomiya, Japan M6.0 122 km
Apr 16, 2011 6 km ENE of Tanuma, Japan M5.8 116 km
Feb 25, 2013 29 km NE of Numata, Japan M5.8 96 km
Mar 11, 2011 eastern Honshu, Japan M5.7 66 km
Jul 16, 2007 16 km NNW of Kashiwazaki, Japan M5.7 128 km
Mar 6, 1996 13 km NNE of Gotenba, Japan M5.6 117 km
Apr 11, 2011 8 km WSW of Iiyama, Japan M5.5 51 km
Jul 15, 2011 5 km NE of Sakai, Japan M5.5 136 km
Feb 15, 2005 2 km NNW of Iwatsuki, Japan M5.5 126 km
Dec 21, 1996 3 km E of Sugito, Japan M5.5 131 km
Aug 15, 1998 22 km WSW of Hotaka, Japan M5.5 65 km
Mar 15, 2012 3 km ENE of ?me, Japan M5.5 103 km
May 16, 2016 6 km NE of Kasukabe, Japan M5.4 135 km
Aug 26, 2010 25 km ENE of Katsuyama, Japan M5.4 145 km
Jun 5, 1990 13 km NE of Gotenba, Japan M5.3 122 km
Jan 4, 2001 20 km WSW of Shiozawa, Japan M5.3 74 km
Oct 5, 2011 24 km W of ?machi, Japan M5.3 70 km
Dec 7, 1990 17 km SSW of Kashiwazaki, Japan M5.3 97 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

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

Year Name Category Closest
2019 Faxai Category 3 168 km
2019 Hagibis Category 2 126 km
2018 Jebi Category 1 189 km
2018 Jongdari Category 1 236 km
2016 Mindulle Category 1 251 km
2014 Phanfone Category 1 162 km
2011 Roke Category 2 91 km
2007 Fitow Category 1 113 km
2005 Mawar Category 2 173 km
2004 Ma-on Category 3 154 km
2004 Chaba Category 1 235 km
2003 Etau Category 1 212 km
2002 Higos Category 2 147 km
2001 Danas Category 1 152 km
2000 Kirogi Category 1 241 km
1998 Vicki Category 2 86 km
1998 Zeb Category 1 239 km
1998 Stella Category 1 121 km
1996 Violet Category 1 274 km
1996 Kirk Category 1 193 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

9 tsunamis recorded within 500 km. Highest wave on record: 0.2 m (1 ft).

Year Location Cause Max Wave Deaths Distance
1987 HONSHU ISLAND Earthquake 0.2 m 129 km
2007 HONSHU: W COAST Earthquake 15 135 km
1802 NW. HONSHU ISLAND Earthquake 19 150 km
1751 NW. HONSHU ISLAND Eruption + Earthquake 2,100 97 km
1633 SAGAMI BAY Earthquake 150 149 km
1614 NIIGATA PREFECTURE Earthquake 131 km
1448 SADO, JAPAN Earthquake 128 km
887 NIIGATA Earthquake 2,000 129 km
863 NW. HONSHU ISLAND Eruption + Earthquake 89 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

15 volcanoes within 200 km. Closest: Asamayama (16 km).

Name Type Elevation Last Eruption Distance
Asamayama Complex 2,568 m (8,425 ft) 2019 16 km
Yokodake Stratovolcano(es) 2,480 m (8,136 ft) 1200 30 km
Kusatsu-Shiranesan Stratovolcano(es) 2,165 m (7,103 ft) 2018 33 km
Shiga Shield(s) 2,041 m (6,696 ft) Unknown 40 km
Harunasan Stratovolcano 1,449 m (4,754 ft) 550 46 km
Myokosan Stratovolcano 2,454 m (8,051 ft) -750 64 km
Washiba-Kumonotaira Shield(s) 2,924 m (9,593 ft) Unknown 69 km
Niigata-Yakeyama Lava dome 2,400 m (7,874 ft) 1998 69 km
Yakedake Stratovolcano(es) 2,455 m (8,054 ft) 1995 71 km
Midagahara Stratovolcano 2,621 m (8,599 ft) 1839 73 km
Norikuradake Stratovolcano(es) 3,026 m (9,928 ft) -50 78 km
Akagisan Stratovolcano 1,828 m (5,997 ft) Unknown 78 km
Ontakesan Complex 3,067 m (10,062 ft) 2014 94 km
Nikko-Shiranesan Shield 2,578 m (8,458 ft) 1952 103 km
Hiuchigatake Stratovolcano 2,356 m (7,730 ft) 1544 106 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 24°F (-4°C) 1.8 in Coldest
February 25°F (-4°C) 2.2 in
March 31°F (-0°C) 3.1 in
April 43°F (6°C) 4.1 in
May 53°F (12°C) 4.8 in
June 60°F (15°C) 7.6 in
July 67°F (19°C) 7.8 in
August 69°F (21°C) 7.7 in Warmest
September 61°F (16°C) 8.1 in Wettest
October 50°F (10°C) 4.7 in
November 40°F (4°C) 2.6 in
December 30°F (-1°C) 1.4 in Driest

Tōmi has a seasonal temperature swing of 45°F / from 24°F in January to 69°F in August. Total annual precipitation is 55.9 inches, with September being the wettest month (8.1") and December the driest (1.4").

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