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Weather & Climate in Nagiso, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Nagiso experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 30°F in January while summers reach 71°F in July. The area gets 202 sunny days per year. Annual precipitation totals 73.6 inches (wetter than the 38-inch national average). The area receives 7.5 inches of snow annually. The city sits at an elevation of 1,407 feet.
Temperature
30°F Jan (-1°C)
71°F Jul (22°C)
| Annual Average | 51.3°F |
| 5% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 202 days/yr |
Geography
| Elevation | 1,407 ft (429 m) |
| Area | 261.2 sq mi (676.5 km²) |
| Population Density | 16/sq mi |
| Coordinates | 35.6086°N, 137.6106°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
455 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.2.
| Aug 10, 2009 | 8 km NE of Sagara, Japan | M6.2 | 113 km | 40 km |
| Mar 15, 2011 | 6 km NNW of Fujinomiya, Japan | M6.0 | 96 km | 9 km |
| Jan 15, 2007 | 15 km WSW of Heda, Japan | M5.9 | 123 km | 170 km |
| Aug 1, 2011 | 20 km E of ?yama, Japan | M5.9 | 132 km | 13 km |
| May 23, 1997 | 38 km SSE of Tahara, Japan | M5.8 | 138 km | 11 km |
| Mar 6, 1996 | 13 km NNE of Gotenba, Japan | M5.6 | 126 km | 33 km |
| May 3, 1998 | 14 km SW of It?, Japan | M5.6 | 149 km | 34 km |
| Mar 16, 1997 | 5 km NE of Toyokawa, Japan | M5.6 | 86 km | 36 km |
| Apr 11, 2011 | 8 km WSW of Iiyama, Japan | M5.5 | 147 km | 17 km |
| Aug 15, 1998 | 22 km WSW of Hotaka, Japan | M5.5 | 73 km | 10 km |
| Apr 3, 2001 | 10 km NE of Mori, Japan | M5.4 | 87 km | 33 km |
| Aug 26, 2010 | 25 km ENE of Katsuyama, Japan | M5.4 | 94 km | 278 km |
| Jun 5, 1990 | 13 km NE of Gotenba, Japan | M5.3 | 132 km | 122 km |
| Oct 5, 2011 | 24 km W of ?machi, Japan | M5.3 | 97 km | 10 km |
| May 9, 2022 | 7 km NE of Toba, Japan | M5.3 | 136 km | 329 km |
| May 28, 2005 | 37 km SSW of Hamamatsu, Japan | M5.2 | 135 km | 296 km |
| Apr 22, 1998 | 18 km SE of Hikone, Japan | M5.2 | 119 km | 33 km |
| Oct 5, 2011 | eastern Honshu, Japan | M5.2 | 100 km | 13 km |
| Oct 5, 1996 | 12 km NW of Kanaya, Japan | M5.2 | 87 km | 48 km |
| Apr 23, 2020 | 18 km WNW of Shiojiri, Japan | M5.2 | 64 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
41 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2023 | Lan | Category 1 | 69 mph | 275 km |
| 2019 | Faxai | Category 4 | 98 mph | 184 km |
| 2019 | Hagibis | Category 2 | 92 mph | 150 km |
| 2018 | Jebi | Category 2 | 98 mph | 182 km |
| 2018 | Trami | Category 1 | 92 mph | 279 km |
| 2018 | Cimaron | Category 1 | 86 mph | 288 km |
| 2018 | Jongdari | Category 1 | 81 mph | 132 km |
| 2017 | Lan | Category 1 | 98 mph | 249 km |
| 2017 | Noru | Category 1 | 69 mph | 291 km |
| 2016 | Mindulle | Category 1 | 75 mph | 225 km |
| 2014 | Phanfone | Category 1 | 86 mph | 107 km |
| 2011 | Roke | Category 3 | 92 mph | 81 km |
| 2009 | Melor | Category 1 | 86 mph | 201 km |
| 2008 | Sinlaku | Category 1 | 75 mph | 243 km |
| 2007 | Fitow | Category 1 | 81 mph | 144 km |
| 2005 | Mawar | Category 2 | 86 mph | 162 km |
| 2004 | Ma-on | Category 4 | 92 mph | 134 km |
| 2004 | Chaba | Category 1 | 69 mph | 237 km |
| 2003 | Etau | Category 2 | 69 mph | 128 km |
| 2002 | Higos | Category 2 | 86 mph | 186 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
10 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 | — | 123 km |
| 1909 | ANEGAWA, JAPAN | Earthquake | 1.8 m | 41 | 121 km |
| 1945 | TOKAIDO | Earthquake | 1.0 m | 2,306 | 108 km |
| 2009 | HONSHU: S COAST | Earthquake | 0.6 m | 1 | 113 km |
| 1974 | TOKAIDO | Earthquake | 0.2 m | 30 | 150 km |
| 1857 | TOKAIDO | Earthquake | — | — | 110 km |
| 1799 | SW. HONSHU ISLAND | Earthquake | — | — | 143 km |
| 1666 | AICHI PREFECTURE | Earthquake | — | — | 100 km |
| 1589 | SURUGA, JAPAN | Earthquake | — | — | 105 km |
| 1586 | ISE BAY | Earthquake | — | 8,000 | 100 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km. Closest: Ontakesan (34 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Ontakesan | Complex | 3,067 m (10,062 ft) | 2014 | 34 km |
| Norikuradake | Stratovolcano(es) | 3,026 m (9,928 ft) | -50 | 56 km |
| Yakedake | Stratovolcano(es) | 2,455 m (8,054 ft) | 1995 | 69 km |
| Yokodake | Stratovolcano(es) | 2,480 m (8,136 ft) | 1200 | 83 km |
| Washiba-Kumonotaira | Shield(s) | 2,924 m (9,593 ft) | Unknown | 89 km |
| Hakusan | Stratovolcano | 2,702 m (8,865 ft) | 1659 | 97 km |
| Fujisan | Stratovolcano | 3,776 m (12,388 ft) | 1708 | 105 km |
| Midagahara | Stratovolcano | 2,621 m (8,599 ft) | 1839 | 107 km |
| Asamayama | Complex | 2,568 m (8,425 ft) | 2019 | 121 km |
| Hakoneyama | Complex | 1,438 m (4,718 ft) | 2015 | 134 km |
| Kusatsu-Shiranesan | Stratovolcano(es) | 2,165 m (7,103 ft) | 2018 | 139 km |
| Shiga | Shield(s) | 2,041 m (6,696 ft) | Unknown | 145 km |
| Harunasan | Stratovolcano | 1,449 m (4,754 ft) | 550 | 148 km |
| Myokosan | Stratovolcano | 2,454 m (8,051 ft) | -750 | 150 km |
| Niigata-Yakeyama | Lava dome | 2,400 m (7,874 ft) | 1998 | 151 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 2.4 in | Coldest |
| February | 32°F (-0°C) | 2.9 in | |
| March | 38°F (3°C) | 5.0 in | |
| April | 49°F (9°C) | 6.7 in | |
| May | 57°F (14°C) | 6.7 in | |
| June | 64°F (18°C) | 9.9 in | |
| July | 71°F (22°C) | 9.9 in | |
| August | 73°F (23°C) | 8.6 in | Warmest |
| September | 66°F (19°C) | 10.2 in | Wettest |
| October | 55°F (13°C) | 5.7 in | |
| November | 45°F (7°C) | 3.4 in | |
| December | 35°F (2°C) | 2.2 in | Driest |
Nagiso has a seasonal temperature swing of 43°F / from 30°F in January to 73°F in August. Total annual precipitation is 73.6 inches, with September being the wettest month (10.2") and December the driest (2.2").