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Weather & Climate in Hitachi-ota, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Hitachi-ota experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 36°F in January while summers reach 72°F in July. The area gets 234 sunny days per year, above the national average. Annual precipitation totals 56.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 66 feet.
Temperature
36°F Jan (2°C)
72°F Jul (22°C)
| Annual Average | 54.2°F |
| 0% below US avg | |
| January Average | 36°F (2°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 234 days/yr |
Geography
| Elevation | 66 ft (20 m) |
| Area | 143.6 sq mi (372.0 km²) |
| Population Density | 338/sq mi |
| Coordinates | 36.5513°N, 140.5282°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
4,235 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.9.
| Mar 11, 2011 | 47 km E of ?arai, Japan | M7.9 | 60 km | 43 km |
| May 7, 2008 | 78 km NE of Hasaki, Japan | M6.9 | 99 km | 27 km |
| Apr 11, 2011 | 17 km SSW of Ishikawa, Japan | M6.6 | 51 km | 11 km |
| Mar 11, 2011 | 81 km NE of Hasaki, Japan | M6.5 | 102 km | 7 km |
| Mar 11, 2011 | 108 km ESE of Kitaibaraki, Japan | M6.4 | 121 km | 32 km |
| Jun 1, 1990 | near the east coast of Honshu, Japan | M6.3 | 116 km | 67 km |
| Jul 30, 2011 | 13 km SSE of Iwaki, Japan | M6.3 | 58 km | 38 km |
| Mar 11, 2011 | 92 km ENE of Hasaki, Japan | M6.3 | 130 km | 21 km |
| Mar 11, 2011 | near the east coast of Honshu, Japan | M6.3 | 116 km | 25 km |
| Mar 11, 2011 | 30 km NNE of Namie, Japan | M6.3 | 142 km | 32 km |
| Sep 11, 1996 | 23 km SSE of Hasaki, Japan | M6.2 | 119 km | 55 km |
| May 7, 2008 | 80 km NE of Hasaki, Japan | M6.2 | 100 km | 19 km |
| Apr 11, 2011 | 23 km SE of T?gane, Japan | M6.2 | 126 km | 15 km |
| Apr 21, 2011 | 6 km WNW of T?gane, Japan | M6.2 | 110 km | 43 km |
| Mar 11, 2011 | 61 km ESE of Namie, Japan | M6.2 | 120 km | 40 km |
| Jun 3, 2000 | 6 km SE of Narut?, Japan | M6.2 | 111 km | 62 km |
| Mar 11, 2011 | 70 km ESE of Kitaibaraki, Japan | M6.2 | 86 km | 40 km |
| Sep 15, 2011 | 68 km E of ?arai, Japan | M6.1 | 80 km | 28 km |
| Mar 13, 2011 | 72 km E of Hasaki, Japan | M6.1 | 136 km | 8 km |
| Aug 5, 1990 | 43 km E of ?arai, Japan | M6.1 | 56 km | 27 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
32 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 | 212 km |
| 2024 | Jebi | Category 1 | 75 mph | 199 km |
| 2019 | Faxai | Category 3 | 98 mph | 51 km |
| 2019 | Hagibis | Category 1 | 92 mph | 39 km |
| 2018 | Shanshan | Category 1 | 75 mph | 202 km |
| 2016 | Lionrock | Category 1 | 81 mph | 199 km |
| 2016 | Mindulle | Category 1 | 75 mph | 267 km |
| 2014 | Phanfone | Category 1 | 75 mph | 266 km |
| 2011 | Roke | Category 1 | 92 mph | 139 km |
| 2007 | Fitow | Category 1 | 81 mph | 160 km |
| 2005 | Saola | Category 2 | 86 mph | 299 km |
| 2005 | Mawar | Category 2 | 81 mph | 75 km |
| 2004 | Ma-on | Category 3 | 92 mph | 91 km |
| 2002 | Higos | Category 2 | 86 mph | 92 km |
| 2001 | Danas | Category 1 | 81 mph | 20 km |
| 2001 | Vipa | Category 1 | 69 mph | 298 km |
| 2000 | Sonamu | Category 1 | 63 mph | 242 km |
| 2000 | Kirogi | Category 1 | 86 mph | 69 km |
| 1998 | Vicki | Category 2 | 63 mph | 238 km |
| 1998 | Stella | Category 1 | 69 mph | 84 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
15 tsunamis recorded within 500 km. Highest wave on record: 2.0 m (7 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1670 | BOSO, JAPAN | Earthquake | 2.0 m | — | 124 km |
| 2016 | E. COAST HONSHU ISLAND | Earthquake | 1.4 m | — | 121 km |
| 1938 | OFF FUKUSHIMA PREFECTURE | Earthquake | 1.3 m | — | 116 km |
| 1938 | JAPAN TRENCH | Earthquake | 0.8 m | — | 80 km |
| 1938 | SANRIKU | Earthquake | 0.8 m | — | 100 km |
| 1938 | SANRIKU | Earthquake | 0.6 m | 1 | 121 km |
| 1938 | SANRIKU | Earthquake | 0.6 m | — | 127 km |
| 1982 | IBARAKI, JAPAN | Earthquake | 0.4 m | — | 112 km |
| 1961 | KASHIMA, JAPAN | Earthquake | 0.4 m | — | 137 km |
| 1961 | KASHIMA, JAPAN | Earthquake | 0.4 m | — | 129 km |
| 1938 | SANRIKU | Earthquake | 0.3 m | — | 141 km |
| 1896 | KASHIMA, JAPAN | Earthquake | 0.3 m | — | 43 km |
| 1935 | JAPAN | Earthquake | 0.2 m | — | 78 km |
| 1987 | E. HONSHU ISLAND | Earthquake | 0.1 m | — | 114 km |
| 1855 | TOKAIDO | Earthquake | — | 6,757 | 120 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km. Closest: Takaharayama (77 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Takaharayama | Stratovolcano | 1,795 m (5,889 ft) | -4570 | 77 km |
| Nasudake | Stratovolcano(es) | 1,915 m (6,283 ft) | 1963 | 81 km |
| Omanago Group | Lava dome(s) | 2,341 m (7,680 ft) | -3050 | 95 km |
| Nantaisan | Stratovolcano | 2,486 m (8,156 ft) | -9540 | 96 km |
| Nikko-Shiranesan | Shield | 2,578 m (8,458 ft) | 1952 | 106 km |
| Akagisan | Stratovolcano | 1,828 m (5,997 ft) | Unknown | 119 km |
| Hiuchigatake | Stratovolcano | 2,356 m (7,730 ft) | 1544 | 120 km |
| Bandaisan | Stratovolcano | 1,816 m (5,958 ft) | 1888 | 124 km |
| Adatarayama | Stratovolcano(es) | 1,728 m (5,669 ft) | 1996 | 124 km |
| Numazawa | Shield | 835 m (2,740 ft) | -3400 | 131 km |
| Azumayama | Stratovolcano(es) | 1,949 m (6,394 ft) | 1977 | 134 km |
| Harunasan | Stratovolcano | 1,449 m (4,754 ft) | 550 | 150 km |
| Zaozan [Zaosan] | Complex | 1,841 m (6,040 ft) | 1940 | 177 km |
| Kusatsu-Shiranesan | Stratovolcano(es) | 2,165 m (7,103 ft) | 2018 | 179 km |
| Asamayama | Complex | 2,568 m (8,425 ft) | 2019 | 180 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 36°F (2°C) | 1.3 in | Coldest, Driest |
| February | 36°F (2°C) | 2.2 in | |
| March | 41°F (5°C) | 3.7 in | |
| April | 51°F (11°C) | 4.9 in | |
| May | 59°F (15°C) | 5.7 in | |
| June | 65°F (18°C) | 7.1 in | |
| July | 72°F (22°C) | 6.4 in | |
| August | 75°F (24°C) | 5.9 in | Warmest |
| September | 69°F (20°C) | 7.4 in | Wettest |
| October | 59°F (15°C) | 6.8 in | |
| November | 49°F (10°C) | 3.0 in | |
| December | 40°F (5°C) | 1.8 in |
Hitachi-ota has a seasonal temperature swing of 39°F / from 36°F in January to 75°F in August. Total annual precipitation is 56.2 inches, with September being the wettest month (7.4") and January the driest (1.3").