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Weather & Climate in Mizunashi, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mizunashi experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 26°F in January while summers reach 68°F in July. The area gets 221 sunny days per year, above the national average. Annual precipitation totals 63.5 inches (wetter than the 38-inch national average). The area receives 13.0 inches of snow annually. The city sits at an elevation of 1,988 feet.
Temperature
26°F Jan (-4°C)
68°F Jul (20°C)
| Annual Average | 47.1°F |
| 13% below US avg | |
| January Average | 26°F (-4°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 221 days/yr |
Geography
| Elevation | 1,988 ft (606 m) |
| Area | 419.6 sq mi (1,086.8 km²) |
| Population Density | 34/sq mi |
| Coordinates | 37.1824°N, 139.8006°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
1,975 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.6.
| Jul 16, 2007 | 20 km NNW of Kashiwazaki, Japan | M6.6 | 126 km | 12 km |
| Apr 11, 2011 | 17 km SSW of Ishikawa, Japan | M6.6 | 57 km | 11 km |
| Jul 30, 2011 | 13 km SSE of Iwaki, Japan | M6.3 | 106 km | 38 km |
| Mar 11, 2011 | 30 km NNE of Namie, Japan | M6.3 | 136 km | 32 km |
| Mar 11, 2011 | 13 km E of Arai, Japan | M6.2 | 128 km | 9 km |
| May 13, 2011 | 31 km ESE of Namie, Japan | M6.1 | 138 km | 35 km |
| Aug 5, 1990 | 43 km E of ?arai, Japan | M6.1 | 149 km | 27 km |
| Mar 12, 2011 | 29 km SSE of Namie, Japan | M6.1 | 121 km | 38 km |
| Mar 11, 2011 | 17 km ESE of Namie, Japan | M6.0 | 127 km | 49 km |
| Apr 3, 2004 | 37 km ESE of Hitachi, Japan | M6.0 | 136 km | 31 km |
| Mar 11, 2011 | 15 km E of Namie, Japan | M6.0 | 126 km | 37 km |
| Jul 20, 2000 | 31 km ESE of Hitachi, Japan | M6.0 | 129 km | 47 km |
| Mar 11, 2011 | 4 km SSW of Namie, Japan | M5.9 | 109 km | 40 km |
| May 11, 1997 | 5 km NNE of Iwaki, Japan | M5.9 | 99 km | 49 km |
| Apr 12, 2011 | 8 km WSW of Ishikawa, Japan | M5.9 | 51 km | 11 km |
| Feb 25, 2013 | 29 km NE of Numata, Japan | M5.8 | 62 km | 10 km |
| Apr 16, 2011 | 6 km ENE of Tanuma, Japan | M5.8 | 90 km | 77 km |
| Mar 17, 2011 | 40 km E of Kitaibaraki, Japan | M5.8 | 133 km | 29 km |
| Apr 11, 2011 | 14 km SSE of Marumori, Japan | M5.8 | 112 km | 10 km |
| May 10, 2020 | 49 km E of ?arai, Japan | M5.8 | 150 km | 31 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
25 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Jebi | Category 1 | 75 mph | 288 km |
| 2019 | Faxai | Category 2 | 92 mph | 145 km |
| 2019 | Hagibis | Category 1 | 92 mph | 70 km |
| 2018 | Jebi | Category 1 | 81 mph | 284 km |
| 2018 | Shanshan | Category 1 | 75 mph | 290 km |
| 2016 | Lionrock | Category 1 | 75 mph | 288 km |
| 2014 | Phanfone | Category 1 | 75 mph | 283 km |
| 2011 | Roke | Category 1 | 92 mph | 152 km |
| 2007 | Fitow | Category 1 | 75 mph | 184 km |
| 2005 | Mawar | Category 2 | 75 mph | 170 km |
| 2004 | Ma-on | Category 3 | 92 mph | 157 km |
| 2002 | Higos | Category 1 | 81 mph | 143 km |
| 2001 | Danas | Category 1 | 63 mph | 102 km |
| 2000 | Kirogi | Category 1 | 81 mph | 154 km |
| 1998 | Vicki | Category 2 | 63 mph | 151 km |
| 1998 | Stella | Category 1 | 69 mph | 110 km |
| 1996 | Violet | Category 1 | 81 mph | 219 km |
| 1995 | Oscar | Category 4 | 98 mph | 276 km |
| 1994 | Orchid | Category 1 | 63 mph | 270 km |
| 1993 | Vernon | Category 1 | 75 mph | 145 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
7 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 | 143 km |
| 2016 | E. COAST HONSHU ISLAND | Earthquake | 1.4 m | — | 142 km |
| 1896 | KASHIMA, JAPAN | Earthquake | 0.3 m | — | 131 km |
| 2007 | HONSHU: W COAST | Earthquake | — | 15 | 125 km |
| 1802 | NW. HONSHU ISLAND | Earthquake | — | 19 | 144 km |
| 1762 | NW. HONSHU ISLAND | Earthquake | — | — | 141 km |
| 1448 | SADO, JAPAN | Earthquake | — | — | 146 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km. Closest: Nasudake (16 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Nasudake | Stratovolcano(es) | 1,915 m (6,283 ft) | 1963 | 16 km |
| Takaharayama | Stratovolcano | 1,795 m (5,889 ft) | -4570 | 32 km |
| Numazawa | Shield | 835 m (2,740 ft) | -3400 | 36 km |
| Omanago Group | Lava dome(s) | 2,341 m (7,680 ft) | -3050 | 50 km |
| Hiuchigatake | Stratovolcano | 2,356 m (7,730 ft) | 1544 | 52 km |
| Bandaisan | Stratovolcano | 1,816 m (5,958 ft) | 1888 | 52 km |
| Nantaisan | Stratovolcano | 2,486 m (8,156 ft) | -9540 | 54 km |
| Nikko-Shiranesan | Shield | 2,578 m (8,458 ft) | 1952 | 57 km |
| Adatarayama | Stratovolcano(es) | 1,728 m (5,669 ft) | 1996 | 67 km |
| Azumayama | Stratovolcano(es) | 1,949 m (6,394 ft) | 1977 | 73 km |
| Akagisan | Stratovolcano | 1,828 m (5,997 ft) | Unknown | 88 km |
| Harunasan | Stratovolcano | 1,449 m (4,754 ft) | 550 | 115 km |
| Zaozan [Zaosan] | Complex | 1,841 m (6,040 ft) | 1940 | 121 km |
| Shiga | Shield(s) | 2,041 m (6,696 ft) | Unknown | 127 km |
| Kusatsu-Shiranesan | Stratovolcano(es) | 2,165 m (7,103 ft) | 2018 | 129 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 26°F (-4°C) | 3.3 in | Coldest |
| February | 26°F (-4°C) | 3.2 in | |
| March | 31°F (-1°C) | 3.5 in | |
| April | 44°F (6°C) | 4.4 in | |
| May | 53°F (12°C) | 4.7 in | |
| June | 61°F (16°C) | 6.8 in | |
| July | 68°F (20°C) | 7.8 in | |
| August | 71°F (21°C) | 9.1 in | Warmest, Wettest |
| September | 63°F (17°C) | 8.5 in | |
| October | 51°F (11°C) | 5.4 in | |
| November | 41°F (5°C) | 3.8 in | |
| December | 32°F (-0°C) | 3.1 in | Driest |
Mizunashi has a seasonal temperature swing of 45°F / from 26°F in January to 71°F in August. Total annual precipitation is 63.5 inches, with August being the wettest month (9.1") and December the driest (3.1").