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Weather & Climate in Ashigakubo, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Ashigakubo experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 32°F in January while summers reach 70°F in July. The area gets 234 sunny days per year, above the national average. Annual precipitation totals 56.4 inches (wetter than the 38-inch national average). The area receives 3.2 inches of snow annually. The city sits at an elevation of 997 feet.
Temperature
32°F Jan (0°C)
70°F Jul (21°C)
| Annual Average | 51.6°F |
| 4% below US avg | |
| January Average | 32°F (0°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 234 days/yr |
Geography
| Elevation | 997 ft (304 m) |
| Area | 18.9 sq mi (48.9 km²) |
| Population Density | 72/sq mi |
| Coordinates | 35.9774°N, 139.1359°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
1,622 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.4.
| Feb 20, 1990 | 28 km E of Shimoda, Japan | M6.4 | 142 km | 14 km |
| Jun 1, 1990 | near the east coast of Honshu, Japan | M6.3 | 120 km | 67 km |
| Apr 21, 2011 | 6 km WNW of T?gane, Japan | M6.2 | 114 km | 43 km |
| Jun 3, 2000 | 6 km SE of Narut?, Japan | M6.2 | 129 km | 62 km |
| Mar 11, 2011 | 13 km E of Arai, Japan | M6.2 | 134 km | 9 km |
| Apr 11, 2011 | 23 km SE of T?gane, Japan | M6.2 | 144 km | 15 km |
| May 26, 2023 | 12 km SE of Narutō, Japan | M6.1 | 135 km | 42 km |
| Mar 15, 2011 | 6 km NNW of Fujinomiya, Japan | M6.0 | 93 km | 9 km |
| Mar 14, 2012 | 5 km SE of Asahi, Japan | M6.0 | 144 km | 10 km |
| May 4, 2014 | 31 km ESE of It?, Japan | M6.0 | 121 km | 153 km |
| Apr 10, 2005 | near the east coast of Honshu, Japan | M5.9 | 121 km | 43 km |
| Jan 15, 2007 | 15 km WSW of Heda, Japan | M5.9 | 129 km | 170 km |
| Jul 23, 2005 | 9 km WSW of Ichihara, Japan | M5.9 | 93 km | 61 km |
| Apr 29, 2012 | 5 km NNW of T?gane, Japan | M5.8 | 117 km | 44 km |
| Apr 16, 2011 | 6 km ENE of Tanuma, Japan | M5.8 | 64 km | 77 km |
| Feb 25, 2013 | 29 km NE of Numata, Japan | M5.8 | 97 km | 10 km |
| Feb 1, 1992 | 4 km SSE of Miura, Japan | M5.8 | 107 km | 100 km |
| Jun 19, 2005 | 5 km ENE of Narut?, Japan | M5.7 | 128 km | 48 km |
| Mar 11, 2011 | eastern Honshu, Japan | M5.7 | 131 km | 12 km |
| Jun 14, 1998 | 18 km NE of ?hara, Japan | M5.7 | 142 km | 45 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
31 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Ampil | Category 3 | 98 mph | 270 km |
| 2019 | Faxai | Category 3 | 98 mph | 87 km |
| 2019 | Hagibis | Category 2 | 92 mph | 48 km |
| 2018 | Jebi | Category 1 | 81 mph | 270 km |
| 2018 | Shanshan | Category 1 | 81 mph | 221 km |
| 2018 | Jongdari | Category 1 | 81 mph | 212 km |
| 2016 | Mindulle | Category 1 | 75 mph | 189 km |
| 2014 | Phanfone | Category 1 | 81 mph | 137 km |
| 2011 | Roke | Category 2 | 92 mph | 10 km |
| 2009 | Krovanh | Category 1 | 69 mph | 284 km |
| 2007 | Fitow | Category 1 | 81 mph | 42 km |
| 2005 | Mawar | Category 2 | 81 mph | 94 km |
| 2004 | Ma-on | Category 3 | 92 mph | 73 km |
| 2003 | Etau | Category 1 | 52 mph | 268 km |
| 2002 | Higos | Category 2 | 86 mph | 69 km |
| 2001 | Danas | Category 1 | 81 mph | 72 km |
| 2000 | Kirogi | Category 1 | 86 mph | 160 km |
| 1998 | Vicki | Category 2 | 69 mph | 167 km |
| 1998 | Stella | Category 1 | 69 mph | 56 km |
| 1996 | Violet | Category 1 | 81 mph | 193 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
12 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 | 103 km |
| 1495 | KAMAKURA, SAGAMI BAY, TOKAIDO | Earthquake | 5.0 m | 200 | 103 km |
| 1433 | OFF IZU-OSHIMA | Earthquake | 2.0 m | — | 124 km |
| 1980 | HONSHU ISLAND | Earthquake | 0.6 m | — | 130 km |
| 1978 | TOKAIDO | Earthquake | 0.4 m | 25 | 130 km |
| 1990 | JAPAN | Earthquake | 0.2 m | — | 142 km |
| 1855 | TOKAIDO | Earthquake | — | 6,757 | 70 km |
| 1782 | ODAWARA, SAGAMI BAY | Eruption + Earthquake | — | — | 110 km |
| 1633 | SAGAMI BAY | Earthquake | — | 150 | 87 km |
| 1257 | SAGAMI BAY, JAPAN | Earthquake | — | — | 93 km |
| 1241 | KAMAKURA, SAGAMI BAY | Earthquake | — | — | 90 km |
| 818 | TOKAIDO | Eruption + Earthquake | — | — | 88 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km. Closest: Harunasan (61 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Harunasan | Stratovolcano | 1,449 m (4,754 ft) | 550 | 61 km |
| Akagisan | Stratovolcano | 1,828 m (5,997 ft) | Unknown | 65 km |
| Asamayama | Complex | 2,568 m (8,425 ft) | 2019 | 73 km |
| Yokodake | Stratovolcano(es) | 2,480 m (8,136 ft) | 1200 | 74 km |
| Fujisan | Stratovolcano | 3,776 m (12,388 ft) | 1708 | 78 km |
| Hakoneyama | Complex | 1,438 m (4,718 ft) | 2015 | 83 km |
| Kusatsu-Shiranesan | Stratovolcano(es) | 2,165 m (7,103 ft) | 2018 | 90 km |
| Nantaisan | Stratovolcano | 2,486 m (8,156 ft) | -9540 | 93 km |
| Nikko-Shiranesan | Shield | 2,578 m (8,458 ft) | 1952 | 94 km |
| Shiga | Shield(s) | 2,041 m (6,696 ft) | Unknown | 96 km |
| Omanago Group | Lava dome(s) | 2,341 m (7,680 ft) | -3050 | 97 km |
| Hiuchigatake | Stratovolcano | 2,356 m (7,730 ft) | 1544 | 110 km |
| Takaharayama | Stratovolcano | 1,795 m (5,889 ft) | -4570 | 118 km |
| Izu-Tobu | Pyroclastic cone(s) | 1,406 m (4,613 ft) | 1989 | 120 km |
| Myokosan | Stratovolcano | 2,454 m (8,051 ft) | -750 | 137 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (0°C) | 1.3 in | Coldest |
| February | 33°F (0°C) | 1.9 in | |
| March | 38°F (3°C) | 3.0 in | |
| April | 49°F (9°C) | 4.0 in | |
| May | 57°F (14°C) | 4.8 in | |
| June | 64°F (18°C) | 7.3 in | |
| July | 70°F (21°C) | 6.7 in | |
| August | 73°F (23°C) | 9.1 in | Warmest, Wettest |
| September | 66°F (19°C) | 8.7 in | |
| October | 55°F (13°C) | 5.9 in | |
| November | 46°F (8°C) | 2.5 in | |
| December | 37°F (3°C) | 1.1 in | Driest |
Ashigakubo has a seasonal temperature swing of 41°F / from 32°F in January to 73°F in August. Total annual precipitation is 56.4 inches, with August being the wettest month (9.1") and December the driest (1.1").