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Weather & Climate in Shimonakatsukawa, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Shimonakatsukawa experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 27°F in January while summers reach 70°F in July. The area gets 222 sunny days per year, above the national average. Annual precipitation totals 62.7 inches (wetter than the 38-inch national average). The area receives 17.2 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 1,509 feet.
Temperature
27°F Jan (-3°C)
70°F Jul (21°C)
| Annual Average | 48.9°F |
| 9% below US avg | |
| January Average | 27°F (-3°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 222 days/yr |
Geography
| Elevation | 1,509 ft (460 m) |
| Area | 106.7 sq mi (276.3 km²) |
| Population Density | 12/sq mi |
| Coordinates | 37.3373°N, 139.6069°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
1,394 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.6.
| Apr 11, 2011 | 17 km SSW of Ishikawa, Japan | M6.6 | 80 km | 11 km |
| Jul 16, 2007 | 20 km NNW of Kashiwazaki, Japan | M6.6 | 105 km | 12 km |
| Jun 18, 2019 | 31 km WSW of Tsuruoka, Japan | M6.4 | 145 km | 12 km |
| Jul 30, 2011 | 13 km SSE of Iwaki, Japan | M6.3 | 127 km | 38 km |
| Mar 11, 2011 | 30 km NNE of Namie, Japan | M6.3 | 145 km | 32 km |
| Mar 11, 2011 | 13 km E of Arai, Japan | M6.2 | 115 km | 9 km |
| Mar 12, 2011 | 29 km SSE of Namie, Japan | M6.1 | 138 km | 38 km |
| Mar 11, 2011 | 17 km ESE of Namie, Japan | M6.0 | 141 km | 49 km |
| Mar 11, 2011 | 15 km E of Namie, Japan | M6.0 | 139 km | 37 km |
| Mar 11, 2011 | 4 km SSW of Namie, Japan | M5.9 | 122 km | 40 km |
| Apr 12, 2011 | 8 km WSW of Ishikawa, Japan | M5.9 | 72 km | 11 km |
| May 11, 1997 | 5 km NNE of Iwaki, Japan | M5.9 | 119 km | 49 km |
| Aug 11, 2011 | 1 km SSE of Iwaki, Japan | M5.8 | 119 km | 44 km |
| Feb 25, 2013 | 29 km NE of Numata, Japan | M5.8 | 64 km | 10 km |
| Apr 11, 2011 | 14 km SSE of Marumori, Japan | M5.8 | 118 km | 10 km |
| Apr 16, 2011 | 6 km ENE of Tanuma, Japan | M5.8 | 107 km | 77 km |
| Dec 3, 1996 | 35 km SE of Muramatsu, Japan | M5.7 | 20 km | 139 km |
| Mar 11, 2011 | eastern Honshu, Japan | M5.7 | 124 km | 12 km |
| Apr 1, 2012 | 9 km NE of Iwaki, Japan | M5.7 | 122 km | 48 km |
| Jan 22, 1992 | 8 km WNW of Higashine, Japan | M5.7 | 140 km | 116 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
23 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2019 | Faxai | Category 2 | 92 mph | 169 km |
| 2019 | Hagibis | Category 1 | 81 mph | 93 km |
| 2018 | Jebi | Category 1 | 81 mph | 266 km |
| 2014 | Phanfone | Category 1 | 75 mph | 292 km |
| 2011 | Roke | Category 1 | 86 mph | 164 km |
| 2007 | Fitow | Category 1 | 75 mph | 197 km |
| 2005 | Mawar | Category 2 | 75 mph | 192 km |
| 2004 | Ma-on | Category 3 | 92 mph | 178 km |
| 2002 | Higos | Category 1 | 81 mph | 142 km |
| 2001 | Danas | Category 1 | 63 mph | 126 km |
| 2000 | Kirogi | Category 1 | 81 mph | 177 km |
| 1998 | Vicki | Category 2 | 63 mph | 131 km |
| 1998 | Stella | Category 1 | 69 mph | 127 km |
| 1996 | Violet | Category 1 | 81 mph | 242 km |
| 1996 | Kirk | Category 1 | 63 mph | 285 km |
| 1995 | Oscar | Category 4 | 98 mph | 299 km |
| 1994 | Orchid | Category 1 | 69 mph | 256 km |
| 1993 | Vernon | Category 1 | 75 mph | 168 km |
| 1990 | Flo | Category 1 | 58 mph | 240 km |
| 1990 | Winona | Category 1 | 63 mph | 292 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
10 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 | 121 km |
| 2019 | NIIGATA | Earthquake | 0.1 m | — | 146 km |
| 2007 | HONSHU: W COAST | Earthquake | — | 15 | 103 km |
| 1802 | NW. HONSHU ISLAND | Earthquake | — | 19 | 122 km |
| 1762 | NW. HONSHU ISLAND | Earthquake | — | — | 116 km |
| 1751 | NW. HONSHU ISLAND | Eruption + Earthquake | — | 2,100 | 134 km |
| 1614 | NIIGATA PREFECTURE | Earthquake | — | — | 143 km |
| 1448 | SADO, JAPAN | Earthquake | — | — | 126 km |
| 887 | NIIGATA | Earthquake | — | 2,000 | 134 km |
| 863 | NW. HONSHU ISLAND | Eruption + Earthquake | — | — | 145 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km. Closest: Numazawa (12 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Numazawa | Shield | 835 m (2,740 ft) | -3400 | 12 km |
| Nasudake | Stratovolcano(es) | 1,915 m (6,283 ft) | 1963 | 39 km |
| Bandaisan | Stratovolcano | 1,816 m (5,958 ft) | 1888 | 50 km |
| Takaharayama | Stratovolcano | 1,795 m (5,889 ft) | -4570 | 51 km |
| Hiuchigatake | Stratovolcano | 2,356 m (7,730 ft) | 1544 | 51 km |
| Omanago Group | Lava dome(s) | 2,341 m (7,680 ft) | -3050 | 61 km |
| Nikko-Shiranesan | Shield | 2,578 m (8,458 ft) | 1952 | 63 km |
| Nantaisan | Stratovolcano | 2,486 m (8,156 ft) | -9540 | 65 km |
| Adatarayama | Stratovolcano(es) | 1,728 m (5,669 ft) | 1996 | 69 km |
| Azumayama | Stratovolcano(es) | 1,949 m (6,394 ft) | 1977 | 72 km |
| Akagisan | Stratovolcano | 1,828 m (5,997 ft) | Unknown | 94 km |
| Zaozan [Zaosan] | Complex | 1,841 m (6,040 ft) | 1940 | 116 km |
| Harunasan | Stratovolcano | 1,449 m (4,754 ft) | 550 | 117 km |
| Shiga | Shield(s) | 2,041 m (6,696 ft) | Unknown | 121 km |
| Kusatsu-Shiranesan | Stratovolcano(es) | 2,165 m (7,103 ft) | 2018 | 125 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 27°F (-3°C) | 4.8 in | Coldest |
| February | 27°F (-3°C) | 3.9 in | |
| March | 32°F (0°C) | 3.7 in | Driest |
| April | 45°F (7°C) | 4.0 in | |
| May | 56°F (13°C) | 4.1 in | |
| June | 63°F (17°C) | 5.9 in | |
| July | 70°F (21°C) | 7.4 in | Wettest |
| August | 73°F (23°C) | 7.1 in | Warmest |
| September | 65°F (18°C) | 7.4 in | |
| October | 53°F (12°C) | 5.2 in | |
| November | 43°F (6°C) | 4.5 in | |
| December | 33°F (0°C) | 4.7 in |
Shimonakatsukawa has a seasonal temperature swing of 46°F / from 27°F in January to 73°F in August. Total annual precipitation is 62.7 inches, with July being the wettest month (7.4") and March the driest (3.7").