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Weather & Climate in Shinjō, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Shinjō experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 29°F in January while summers reach 73°F in July. The area gets 220 sunny days per year. Annual precipitation totals 64.2 inches (wetter than the 38-inch national average). The area receives 21.4 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 325 feet.
Temperature
29°F Jan (-1°C)
73°F Jul (23°C)
| Annual Average | 51.3°F |
| 5% below US avg | |
| January Average | 29°F (-1°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 220 days/yr |
Geography
| Elevation | 325 ft (99 m) |
| Area | 86.0 sq mi (222.8 km²) |
| Population Density | 478/sq mi |
| Coordinates | 38.7586°N, 140.3008°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
901 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.1.
| Apr 7, 2011 | 29 km ESE of Ishinomaki, Japan | M7.1 | 124 km | 42 km |
| May 26, 2003 | 27 km SSW of ?funato, Japan | M7.0 | 110 km | 68 km |
| Mar 20, 2021 | 30 km E of Ishinomaki, Japan | M7.0 | 122 km | 43 km |
| Jun 13, 2008 | 24 km WSW of Mizusawa, Japan | M6.9 | 59 km | 8 km |
| May 1, 2021 | 30 km SSE of Onagawa Ch?, Japan | M6.9 | 129 km | 43 km |
| Dec 2, 2001 | 3 km NW of Hanamaki, Japan | M6.5 | 99 km | 124 km |
| Nov 3, 2002 | 30 km SE of ?funato, Japan | M6.4 | 146 km | 39 km |
| Jun 18, 2019 | 31 km WSW of Tsuruoka, Japan | M6.4 | 73 km | 12 km |
| Apr 19, 2020 | 31 km SE of ?funato, Japan | M6.3 | 148 km | 38 km |
| Jul 23, 2011 | 21 km SSE of ?funato, Japan | M6.3 | 132 km | 41 km |
| Jul 24, 2011 | 43 km NE of Namie, Japan | M6.3 | 149 km | 40 km |
| Mar 11, 2011 | 30 km NNE of Namie, Japan | M6.3 | 140 km | 32 km |
| Jun 17, 2012 | 19 km SSE of ?funato, Japan | M6.3 | 134 km | 36 km |
| Mar 25, 2011 | 36 km SSE of ?funato, Japan | M6.2 | 137 km | 39 km |
| Jul 25, 2003 | 7 km NW of Matsushima, Japan | M6.1 | 72 km | 6 km |
| Mar 12, 2011 | 55 km SE of Ishinomaki, Japan | M6.1 | 147 km | 15 km |
| Mar 31, 2011 | 18 km SSE of ?funato, Japan | M6.0 | 133 km | 42 km |
| Aug 10, 1996 | 25 km NE of Shinj?, Japan | M6.0 | 26 km | 10 km |
| Apr 17, 2013 | 29 km ENE of Ishinomaki, Japan | M5.9 | 120 km | 51 km |
| Sep 3, 1998 | 19 km W of Shizukuishi, Japan | M5.9 | 114 km | 38 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
11 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2019 | Faxai | Category 1 | 86 mph | 250 km |
| 2019 | Hagibis | Category 1 | 75 mph | 145 km |
| 2004 | Ma-on | Category 2 | 63 mph | 242 km |
| 2002 | Higos | Category 1 | 75 mph | 76 km |
| 2001 | Danas | Category 1 | 58 mph | 262 km |
| 2000 | Kirogi | Category 1 | 69 mph | 183 km |
| 1998 | Vicki | Category 2 | 63 mph | 83 km |
| 1998 | Stella | Category 1 | 63 mph | 289 km |
| 1996 | Violet | Category 1 | 81 mph | 282 km |
| 1995 | Ryan | Category 1 | 40 mph | 222 km |
| 1993 | Vernon | Category 1 | 69 mph | 203 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
11 tsunamis recorded within 500 km. Highest wave on record: 9.0 m (30 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1833 | NW. HONSHU ISLAND | Earthquake | 9.0 m | 85 | 101 km |
| 1964 | NW. HONSHU ISLAND | Earthquake | 5.8 m | 36 | 102 km |
| 2008 | ARATOZAWA, JAPAN | Eruption + Earthquake | 2.5 m | 23 | 59 km |
| 1810 | NW. HONSHU ISLAND | Earthquake | 1.0 m | 57 | 132 km |
| 1804 | NW. HONSHU ISLAND | Earthquake | 1.0 m | 450 | 44 km |
| 2019 | NIIGATA | Earthquake | 0.1 m | — | 73 km |
| 1898 | HONSHU ISLAND | Earthquake | 0.1 m | — | 149 km |
| 2011 | E. COAST HONSHU ISLAND | Earthquake | 0.1 m | 3 | 124 km |
| 1894 | YAMAGATA, JAPAN | Earthquake | — | 726 | 46 km |
| 1644 | HONJO, AKITA | Earthquake | — | 117 | 73 km |
| 850 | NW. HONSHU ISLAND | Eruption + Earthquake | — | — | 44 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
14 volcanoes within 200 km. Closest: Naruko (38 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Naruko | Caldera | 470 m (1,542 ft) | 837 | 38 km |
| Chokaisan | Stratovolcano(es) | 2,236 m (7,336 ft) | 1974 | 44 km |
| Kurikomayama | Stratovolcano | 1,627 m (5,338 ft) | 1950 | 48 km |
| Zaozan [Zaosan] | Complex | 1,841 m (6,040 ft) | 1940 | 69 km |
| Azumayama | Stratovolcano(es) | 1,949 m (6,394 ft) | 1977 | 114 km |
| Akita-Komagatake | Stratovolcano(es) | 1,637 m (5,371 ft) | 1971 | 119 km |
| Adatarayama | Stratovolcano(es) | 1,728 m (5,669 ft) | 1996 | 124 km |
| Bandaisan | Stratovolcano | 1,816 m (5,958 ft) | 1888 | 130 km |
| Iwatesan | Complex | 2,038 m (6,686 ft) | 1919 | 136 km |
| Akita-Yakeyama | Stratovolcano | 1,366 m (4,482 ft) | 1997 | 140 km |
| Megata | Maar(s) | 291 m (955 ft) | -2050 | 141 km |
| Hachimantai | Stratovolcano | 1,613 m (5,292 ft) | -5350 | 142 km |
| Numazawa | Shield | 835 m (2,740 ft) | -3400 | 160 km |
| Nasudake | Stratovolcano(es) | 1,915 m (6,283 ft) | 1963 | 184 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-1°C) | 6.4 in | Coldest |
| February | 30°F (-1°C) | 4.5 in | |
| March | 35°F (2°C) | 3.7 in | |
| April | 47°F (8°C) | 3.9 in | |
| May | 58°F (14°C) | 3.5 in | Driest |
| June | 66°F (19°C) | 4.7 in | |
| July | 73°F (23°C) | 5.9 in | |
| August | 76°F (24°C) | 6.6 in | Warmest |
| September | 67°F (20°C) | 5.9 in | |
| October | 55°F (13°C) | 5.4 in | |
| November | 44°F (7°C) | 6.9 in | Wettest |
| December | 35°F (2°C) | 6.9 in |
Shinjō has a seasonal temperature swing of 46°F / from 29°F in January to 76°F in August. Total annual precipitation is 64.2 inches, with November being the wettest month (6.9") and May the driest (3.5").