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Hannō, Japan

Full City Profile

4.2 /5.0
A Great
80,361 Population 1,078/sq mi density
371 ft Elevation 113 meters
62°F Avg Temperature 17°C
A
Overall
4.2 / 5.0
Strong
B
Economy
3.3 / 5.0
$36,200 median income, 2.5% unemployment
A+
Affordability
5.0 / 5.0
$106,000 home value, $530/mo rent
Hannō enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 39°F in January while summers reach 84°F in July. The area gets 293 sunny days per year. Annual precipitation totals 51.6 inches. The area receives 5.4 inches of snow annually.

Temperature

39°F Jan (4°C) 84°F Jul (29°C)
Annual Average62.2°F
15% above US avg
January Average39°F (4°C)
July Average84°F (29°C)
Sunny Days293 days/yr

Geography

Elevation371 ft (113 m)
Area74.5 sq mi (193.1 km²)
Population Density1,078/sq mi
Coordinates35.8519°N, 139.3181°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 51.6"
36% above US avg
Snowfall 5.4"
Wettest Month (Sep) 8.15"
Driest Month (Dec) 1.34"

Air Quality

Earthquake History

1,838 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.4. Most recent: M4.3 on Aug 28, 2025.

Feb 20, 1990 28 km E of Shimoda, Japan M6.4 128 km
Jun 1, 1990 near the east coast of Honshu, Japan M6.3 99 km
Jun 3, 2000 6 km SE of Narut?, Japan M6.2 109 km
Apr 21, 2011 6 km WNW of T?gane, Japan M6.2 94 km
Apr 11, 2011 23 km SE of T?gane, Japan M6.2 124 km
May 26, 2023 12 km SE of Narutō, Japan M6.1 115 km
May 4, 2014 31 km ESE of It?, Japan M6.0 105 km
Mar 14, 2012 5 km SE of Asahi, Japan M6.0 126 km
Mar 11, 2011 4 km ESE of Hasaki, Japan M6.0 141 km
Mar 15, 2011 6 km NNW of Fujinomiya, Japan M6.0 93 km
Apr 10, 2005 near the east coast of Honshu, Japan M5.9 102 km
Jul 23, 2005 9 km WSW of Ichihara, Japan M5.9 72 km
Jan 15, 2007 15 km WSW of Heda, Japan M5.9 123 km
Apr 16, 2011 6 km ENE of Tanuma, Japan M5.8 66 km
Feb 1, 1992 4 km SSE of Miura, Japan M5.8 88 km
Feb 25, 2013 29 km NE of Numata, Japan M5.8 111 km
Jun 6, 2009 28 km SSE of Hasaki, Japan M5.8 150 km
May 20, 2011 3 km NNE of Hasaki, Japan M5.8 138 km
Apr 29, 2012 5 km NNW of T?gane, Japan M5.8 97 km
Sep 20, 2003 12 km SSE of Kamogawa, Japan M5.7 123 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

36 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 3. Most recent: Ampil (2024).

Year Name Category Closest
2024 Ampil Category 3 249 km
2024 Jebi Category 1 286 km
2019 Faxai Category 3 66 km
2019 Hagibis Category 2 29 km
2018 Jongdari Category 2 206 km
2018 Jebi Category 1 291 km
2018 Shanshan Category 1 200 km
2016 Mindulle Category 1 173 km
2016 Lionrock Category 1 296 km
2014 Phanfone Category 1 135 km
2011 Roke Category 2 12 km
2009 Krovanh Category 1 267 km
2007 Fitow Category 1 30 km
2005 Mawar Category 2 73 km
2004 Ma-on Category 3 52 km
2003 Etau Category 1 283 km
2002 Higos Category 2 53 km
2001 Vipa Category 1 291 km
2001 Danas Category 1 53 km
2000 Kirogi Category 1 139 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

17 tsunamis recorded within 500 km. Highest wave on record: 13.0 m (43 ft).

Year Location Cause Max Wave Deaths Distance
1923 SAGAMI BAY Earthquake 13.0 m 105,385 85 km
1703 OFF SW BOSO PENINSULA Earthquake 11.7 m 5,233 135 km
1495 KAMAKURA, SAGAMI BAY, TOKAIDO Earthquake 5.0 m 200 85 km
1433 OFF IZU-OSHIMA Earthquake 2.0 m 107 km
1980 HONSHU ISLAND Earthquake 0.6 m 117 km
1978 TOKAIDO Earthquake 0.4 m 25 116 km
1923 RYUKYU ISLANDS Earthquake 0.3 m 133 km
1990 JAPAN Earthquake 0.2 m 128 km
1857 TOKAIDO Earthquake 149 km
1855 TOKAIDO Earthquake 6,757 49 km
1782 ODAWARA, SAGAMI BAY Eruption + Earthquake 91 km
1642 BOSO, JAPAN Earthquake 137 km
1633 SAGAMI BAY Earthquake 150 73 km
1602 BOSO, JAPAN Eruption + Earthquake 136 km
1257 SAGAMI BAY, JAPAN Earthquake 74 km
1241 KAMAKURA, SAGAMI BAY Earthquake 73 km
818 TOKAIDO Eruption + Earthquake 73 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

15 volcanoes within 200 km. Closest: Hakoneyama (74 km).

Name Type Elevation Last Eruption Distance
Hakoneyama Complex 1,438 m (4,718 ft) 2015 74 km
Fujisan Stratovolcano 3,776 m (12,388 ft) 1708 76 km
Akagisan Stratovolcano 1,828 m (5,997 ft) Unknown 80 km
Harunasan Stratovolcano 1,449 m (4,754 ft) 550 81 km
Yokodake Stratovolcano(es) 2,480 m (8,136 ft) 1200 94 km
Asamayama Complex 2,568 m (8,425 ft) 2019 94 km
Nantaisan Stratovolcano 2,486 m (8,156 ft) -9540 103 km
Nikko-Shiranesan Shield 2,578 m (8,458 ft) 1952 105 km
Omanago Group Lava dome(s) 2,341 m (7,680 ft) -3050 106 km
Izu-Tobu Pyroclastic cone(s) 1,406 m (4,613 ft) 1989 108 km
Kusatsu-Shiranesan Stratovolcano(es) 2,165 m (7,103 ft) 2018 111 km
Shiga Shield(s) 2,041 m (6,696 ft) Unknown 117 km
Hiuchigatake Stratovolcano 2,356 m (7,730 ft) 1544 123 km
Takaharayama Stratovolcano 1,795 m (5,889 ft) -4570 124 km
Izu-Oshima Stratovolcano 758 m (2,487 ft) 1990 126 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 39°F (4°C) 1.4 in
February 37°F (3°C) 1.9 in Coldest
March 42°F (6°C) 2.9 in
April 53°F (12°C) 3.7 in
May 61°F (16°C) 4.7 in
June 67°F (20°C) 7.0 in
July 84°F (29°C) 6.1 in Warmest
August 77°F (25°C) 7.9 in
September 69°F (21°C) 8.2 in Wettest
October 59°F (15°C) 5.9 in
November 49°F (10°C) 2.5 in
December 41°F (5°C) 1.3 in Driest

Hannō has a seasonal temperature swing of 47°F / from 37°F in February to 84°F in July. Total annual precipitation is 53.4 inches, with September being the wettest month (8.2") and December the driest (1.3").

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