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Shiraoi, Japan

Full City Profile

4.1 /5.0
A Great
17,759 Population 108/sq mi density
16 ft Elevation 5 meters
44°F Avg Temperature 7°C
A
Overall
4.1 / 5.0
Strong
B
Economy
3.1 / 5.0
$28,900 median income, 3.0% unemployment
A+
Affordability
5.0 / 5.0
$68,000 home value, $340/mo rent
Shiraoi has a cool climate with an average annual temperature of 44°F (7°C). Winters average 23°F in January while summers reach 64°F in July. The area gets 248 sunny days per year. Annual precipitation totals 48.4 inches. The area receives 10.1 inches of snow annually.

Temperature

23°F Jan (-5°C) 64°F Jul (18°C)
Annual Average44.4°F
18% below US avg
January Average23°F (-5°C)
July Average64°F (18°C)
Sunny Days248 days/yr

Geography

Elevation16 ft (5 m)
Area164.3 sq mi (425.6 km²)
Population Density108/sq mi
Coordinates42.5500°N, 141.3500°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 48.4"
27% above US avg
Snowfall 10.1"
Wettest Month (Aug) 7.28"
Driest Month (Feb) 2.17"

Air Quality

Earthquake History

1,018 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.9. Most recent: M5.1 on Aug 18, 2025.

Feb 2, 2013 18 km SSW of Obihiro, Japan M6.9 145 km
Jan 14, 2016 52 km SE of Shizunai-furukawach?, Japan M6.7 134 km
Aug 7, 1993 69 km WNW of Kamiiso, Japan M6.5 139 km
Nov 26, 1991 33 km SSE of Shizunai-furukawach?, Japan M6.4 111 km
Jun 11, 2023 20 km WSW of Biratori, Japan M6.2 45 km
Aug 24, 1992 9 km NNW of Honch?, Japan M6.2 85 km
Jul 12, 1992 70 km ENE of Mutsu, Japan M6.2 134 km
Jun 8, 2015 74 km ENE of Mutsu, Japan M6.1 124 km
Feb 20, 1997 61 km SSE of Shizunai-furukawach?, Japan M6.0 138 km
Aug 25, 2012 45 km ENE of Shizunai-furukawach?, Japan M5.9 129 km
May 23, 2012 72 km E of Mutsu, Japan M5.9 148 km
May 5, 2023 68 km ENE of Mutsu, Japan M5.9 127 km
Jun 10, 2004 49 km E of Shizunai-furukawach?, Japan M5.8 133 km
Apr 29, 2008 70 km ENE of Mutsu, Japan M5.8 134 km
Sep 13, 2010 68 km ENE of Mutsu, Japan M5.8 128 km
Jan 30, 1998 70 km ENE of Mutsu, Japan M5.8 133 km
Mar 7, 2017 62 km ENE of Mutsu, Japan M5.7 124 km
Apr 3, 2002 60 km ENE of Mutsu, Japan M5.7 119 km
May 23, 1995 Hokkaido, Japan region M5.6 127 km
Jan 11, 1995 45 km SSE of Shizunai-furukawach?, Japan M5.6 116 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

2 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 1. Most recent: Higos (2002).

Year Name Category Closest
2002 Higos Category 1 228 km
1998 Vicki Category 1 273 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

6 tsunamis recorded within 500 km. Highest wave on record: 8.0 m (26 ft).

Year Location Cause Max Wave Deaths Distance
1640 SE. HOKKAIDO ISLAND Explosion 8.0 m 700 77 km
1947 W. HOKKAIDO ISLAND Earthquake 2.0 m 142 km
1982 HOKKAIDO ISLAND Earthquake 1.3 m 110 94 km
1993 JAPAN Earthquake 0.2 m 139 km
1834 W. HOKKAIDO ISLAND Earthquake 84 km
1792 W. HOKKAIDO ISLAND Earthquake 122 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

11 volcanoes within 200 km. Closest: Shikotsu (16 km).

Name Type Elevation Last Eruption Distance
Shikotsu Caldera 1,320 m (4,331 ft) 1979 16 km
Kuttara Stratovolcano(es) 549 m (1,801 ft) 1820 17 km
Toya Stratovolcano 733 m (2,405 ft) 2001 42 km
Yoteizan Stratovolcano 1,888 m (6,194 ft) -1050 54 km
Niseko Stratovolcano(es) 1,308 m (4,291 ft) -4900 67 km
Hokkaido-Komagatake Stratovolcano 1,131 m (3,711 ft) 2000 77 km
Esan Lava dome(s) 618 m (2,028 ft) 1874 84 km
Osorezan Stratovolcano 878 m (2,881 ft) 1787 143 km
Tokachidake Stratovolcano(es) 2,077 m (6,814 ft) 2004 145 km
Maruyama Stratovolcano(es) 2,013 m (6,604 ft) 1898 167 km
Taisetsuzan Stratovolcano(es) 2,291 m (7,516 ft) 1739 174 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 23°F (-5°C) 2.6 in Coldest
February 23°F (-5°C) 2.2 in Driest
March 30°F (-1°C) 2.6 in
April 40°F (5°C) 3.2 in
May 49°F (9°C) 3.8 in
June 56°F (13°C) 3.8 in
July 64°F (18°C) 5.6 in
August 68°F (20°C) 7.3 in Warmest, Wettest
September 61°F (16°C) 6.5 in
October 50°F (10°C) 4.5 in
November 39°F (4°C) 3.7 in
December 29°F (-2°C) 2.8 in

Shiraoi has a seasonal temperature swing of 45°F / from 23°F in January to 68°F in August. Total annual precipitation is 48.4 inches, with August being the wettest month (7.3") and February the driest (2.2").

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