Weather & Climate in Asahimachi, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Asahimachi has a cool climate with an average annual temperature of 42°F (5°C). Winters average 15°F in January while summers reach 66°F in July. Annual precipitation totals 42.9 inches. The area receives 14.9 inches of snow annually. The city sits at an elevation of 453 feet.
Temperature
15°F Jan (-9°C)
66°F Jul (19°C)
| Annual Average | 41.8°F |
| 23% below US avg | |
| January Average | 15°F (-9°C) |
| July Average | 66°F (19°C) |
Geography
| Elevation | 453 ft (138 m) |
| Area | 50.6 sq mi (131.0 km²) |
| Population Density | 60/sq mi |
| Coordinates | 44.1005°N, 142.3570°E |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
279 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.6.
| Jan 15, 1993 | 52 km NE of Otofuke, Japan | M7.6 | 139 km | 102 km |
| Jan 11, 2016 | 74 km NW of Rumoi, Japan | M6.2 | 109 km | 239 km |
| Oct 21, 2011 | 16 km NE of Asahikawa, Japan | M6.1 | 25 km | 187 km |
| Feb 19, 2003 | 26 km NNE of Rumoi, Japan | M5.9 | 45 km | 214 km |
| May 23, 1995 | Hokkaido, Japan region | M5.6 | 70 km | 17 km |
| Jan 22, 2013 | 77 km SSW of Rishiri Town, Japan | M5.4 | 119 km | 235 km |
| Dec 22, 1997 | 17 km ENE of Otofuke, Japan | M5.3 | 141 km | 115 km |
| Jul 1, 2017 | 22 km E of Chitose, Japan | M5.3 | 147 km | 37 km |
| Jun 20, 2021 | 29 km NE of Shimo-furano, Japan | M5.3 | 64 km | 152 km |
| Aug 15, 1990 | 43 km ESE of Kamikawa, Japan | M5.3 | 84 km | 162 km |
| Aug 10, 2022 | 51 km SSE of Makubetsu, Japan | M5.1 | 96 km | 10 km |
| Aug 13, 2013 | 35 km WSW of Kitami, Japan | M5.1 | 99 km | 178 km |
| Feb 21, 1990 | 27 km SSW of Nayoro, Japan | M5.1 | 8 km | 33 km |
| Nov 10, 1990 | 23 km W of Nayoro, Japan | M5.1 | 34 km | 16 km |
| May 21, 2013 | 83 km ESE of Makubetsu, Japan | M5.1 | 121 km | 273 km |
| Jul 5, 2024 | 10 km WNW of Nayoro, Japan | M5.1 | 30 km | 232 km |
| Jul 31, 2021 | 16 km NNE of T?betsu, Japan | M5.0 | 102 km | 168 km |
| May 10, 2005 | 35 km E of Kamikawa, Japan | M5.0 | 77 km | 161 km |
| Apr 29, 1994 | 29 km W of Otofuke, Japan | M5.0 | 132 km | 126 km |
| Jul 20, 1993 | 33 km W of Nayoro, Japan | M5.0 | 35 km | 18 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 2.0 m (7 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1947 | W. HOKKAIDO ISLAND | Earthquake | 2.0 m | - | 114 km |
| 1956 | NE. HOKKAIDO ISLAND | Earthquake | 0.4 m | - | 141 km |
| 1863 | NW. HOKKAIDO ISLAND | Earthquake | - | - | 88 km |
| 1834 | W. HOKKAIDO ISLAND | Earthquake | - | - | 118 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
9 volcanoes within 200 km. Closest: Taisetsuzan (63 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Taisetsuzan | Stratovolcano(es) | 2,291 m (7,516 ft) | 1739 | 63 km |
| Tokachidake | Stratovolcano(es) | 2,077 m (6,814 ft) | 2004 | 80 km |
| Maruyama | Stratovolcano(es) | 2,013 m (6,604 ft) | 1898 | 93 km |
| Akan | Caldera | 1,499 m (4,918 ft) | 2008 | 155 km |
| Kussharo | Caldera | 574 m (1,883 ft) | 1320 | 175 km |
| Shikotsu | Caldera | 1,320 m (4,331 ft) | 1979 | 176 km |
| Mashu | Caldera | 857 m (2,812 ft) | 1080 | 186 km |
| Yoteizan | Stratovolcano | 1,888 m (6,194 ft) | -1050 | 189 km |
| Niseko | Stratovolcano(es) | 1,308 m (4,291 ft) | -4900 | 193 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 15°F (-9°C) | 2.8 in | Coldest |
| February | 16°F (-9°C) | 2.0 in | Driest |
| March | 25°F (-4°C) | 2.2 in | |
| April | 39°F (4°C) | 2.4 in | |
| May | 50°F (10°C) | 2.9 in | |
| June | 58°F (15°C) | 2.9 in | |
| July | 66°F (19°C) | 4.0 in | |
| August | 68°F (20°C) | 5.6 in | Warmest, Wettest |
| September | 59°F (15°C) | 5.5 in | |
| October | 47°F (8°C) | 4.8 in | |
| November | 34°F (1°C) | 4.5 in | |
| December | 23°F (-5°C) | 3.5 in |
Asahimachi has a seasonal temperature swing of 52°F / from 15°F in January to 68°F in August. Total annual precipitation is 42.9 inches, with August being the wettest month (5.6") and February the driest (2.0").