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Uonuma, Japan

Full City Profile

4.1 /5.0
A Great
34,483 Population 94/sq mi density
312 ft Elevation 95 meters
52°F Avg Temperature 11°C
A
Overall
4.1 / 5.0
Strong
B
Economy
3.2 / 5.0
$28,700 median income, 2.3% unemployment
A+
Affordability
5.0 / 5.0
$74,000 home value, $370/mo rent
Uonuma experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 29°F in January while summers reach 74°F in July. The area gets 184 sunny days per year. Annual precipitation totals 83.6 inches. The area receives 23.2 inches of snow annually.

Temperature

29°F Jan (-2°C) 74°F Jul (23°C)
Annual Average52.3°F
3% below US avg
January Average29°F (-2°C)
July Average74°F (23°C)
Sunny Days184 days/yr

Geography

Elevation312 ft (95 m)
Area365.6 sq mi (946.9 km²)
Population Density94/sq mi
Coordinates37.2449°N, 138.9623°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 83.6"
120% above US avg
Snowfall 23.2"
Wettest Month (Dec) 11.26"
Driest Month (May) 4.13"

Air Quality

Earthquake History

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

Apr 11, 2011 17 km SSW of Ishikawa, Japan M6.6 130 km
Jul 16, 2007 20 km NNW of Kashiwazaki, Japan M6.6 56 km
Mar 11, 2011 13 km E of Arai, Japan M6.2 58 km
Apr 12, 2011 8 km WSW of Ishikawa, Japan M5.9 126 km
Jan 9, 2024 53 km WSW of Sado, Japan M5.9 125 km
Feb 25, 2013 29 km NE of Numata, Japan M5.8 51 km
Apr 16, 2011 6 km ENE of Tanuma, Japan M5.8 114 km
Dec 3, 1996 35 km SE of Muramatsu, Japan M5.7 53 km
Jul 16, 2007 16 km NNW of Kashiwazaki, Japan M5.7 52 km
Mar 19, 2011 8 km WNW of Daigo, Japan M5.7 126 km
Mar 11, 2011 eastern Honshu, Japan M5.7 68 km
Jan 1, 2024 54 km NE of Anamizu, Japan M5.6 141 km
Jan 1, 2024 56 km NE of Anamizu, Japan M5.5 140 km
Mar 22, 2011 19 km ESE of Ishikawa, Japan M5.5 150 km
Apr 11, 2011 20 km SSW of Ishikawa, Japan M5.5 127 km
Apr 11, 2011 8 km WSW of Iiyama, Japan M5.5 77 km
Sep 29, 2010 35 km NNW of Kuroiso, Japan M5.5 82 km
Mar 22, 2011 12 km ESE of Ishikawa, Japan M5.5 144 km
Jul 15, 2011 5 km NE of Sakai, Japan M5.5 147 km
Apr 1, 1995 8 km NE of Kameda-honch?, Japan M5.4 78 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

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

Year Name Category Closest
2019 Faxai Category 2 200 km
2019 Hagibis Category 1 142 km
2018 Jebi Category 1 209 km
2014 Phanfone Category 1 266 km
2011 Roke Category 1 151 km
2007 Fitow Category 1 184 km
2005 Mawar Category 2 209 km
2004 Ma-on Category 3 198 km
2004 Chaba Category 1 262 km
2002 Higos Category 1 171 km
2001 Danas Category 1 159 km
2000 Kirogi Category 1 224 km
1998 Vicki Category 2 143 km
1998 Stella Category 1 134 km
1996 Violet Category 1 290 km
1996 Kirk Category 1 228 km
1995 Ryan Category 1 287 km
1994 Orchid Category 1 198 km
1993 Vernon Category 1 212 km
1991 Mireille Category 1 297 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

11 tsunamis recorded within 500 km. Highest wave on record: 5.8 m (19 ft).

Year Location Cause Max Wave Deaths Distance
1964 NW. HONSHU ISLAND Earthquake 5.8 m 36 129 km
1987 HONSHU ISLAND Earthquake 0.2 m 100 km
2023 NOTO PENINSULA, JAPAN Earthquake 0.1 m 1 150 km
2007 HONSHU: W COAST Earthquake 15 56 km
1802 NW. HONSHU ISLAND Earthquake 19 77 km
1762 NW. HONSHU ISLAND Earthquake 98 km
1751 NW. HONSHU ISLAND Eruption + Earthquake 2,100 77 km
1614 NIIGATA PREFECTURE Earthquake 90 km
1448 SADO, JAPAN Earthquake 73 km
887 NIIGATA Earthquake 2,000 81 km
863 NW. HONSHU ISLAND Eruption + Earthquake 87 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

15 volcanoes within 200 km. Closest: Hiuchigatake (43 km).

Name Type Elevation Last Eruption Distance
Hiuchigatake Stratovolcano 2,356 m (7,730 ft) 1544 43 km
Numazawa Shield 835 m (2,740 ft) -3400 58 km
Nikko-Shiranesan Shield 2,578 m (8,458 ft) 1952 62 km
Omanago Group Lava dome(s) 2,341 m (7,680 ft) -3050 70 km
Nantaisan Stratovolcano 2,486 m (8,156 ft) -9540 71 km
Shiga Shield(s) 2,041 m (6,696 ft) Unknown 73 km
Akagisan Stratovolcano 1,828 m (5,997 ft) Unknown 79 km
Kusatsu-Shiranesan Stratovolcano(es) 2,165 m (7,103 ft) 2018 80 km
Takaharayama Stratovolcano 1,795 m (5,889 ft) -4570 82 km
Myokosan Stratovolcano 2,454 m (8,051 ft) -750 85 km
Harunasan Stratovolcano 1,449 m (4,754 ft) 550 86 km
Nasudake Stratovolcano(es) 1,915 m (6,283 ft) 1963 90 km
Niigata-Yakeyama Lava dome 2,400 m (7,874 ft) 1998 90 km
Asamayama Complex 2,568 m (8,425 ft) 2019 101 km
Bandaisan Stratovolcano 1,816 m (5,958 ft) 1888 106 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 29°F (-2°C) 10.6 in Coldest
February 30°F (-1°C) 7.4 in
March 35°F (2°C) 5.2 in
April 48°F (9°C) 4.5 in
May 59°F (15°C) 4.1 in Driest
June 67°F (19°C) 5.6 in
July 74°F (23°C) 7.4 in
August 77°F (25°C) 5.7 in Warmest
September 69°F (20°C) 7.4 in
October 57°F (14°C) 6.7 in
November 47°F (8°C) 7.7 in
December 36°F (2°C) 11.3 in Wettest

Uonuma has a seasonal temperature swing of 47°F / from 29°F in January to 77°F in August. Total annual precipitation is 83.6 inches, with December being the wettest month (11.3") and May the driest (4.1").

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