Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Ōno-hara enjoys a temperate climate with an average annual temperature of 58°F (15°C). Winters average 40°F in January while summers reach 77°F in July. The area gets 204 sunny days per year. Annual precipitation totals 72.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 10 feet.
Temperature
40°F Jan (4°C)77°F Jul (25°C)
Annual Average
58.4°F
8% above US avg
January Average
40°F (4°C)
July Average
77°F (25°C)
Sunny Days
204 days/yr
Geography
Elevation
10 ft (3 m)
Area
311.6 sq mi (807.0 km²)
Population Density
84/sq mi
Coordinates
34.2833°N, 132.2667°W
Timezone
Asia/Tokyo
Precipitation & Snow
Annual Rainfall72.5"
91% above US avg
Snowfall0.0"
Wettest Month (Jun)11.85"
Driest Month (Dec)1.97"
Air Quality
Earthquake History
141 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M6.8.
Mar 24, 2001
16 km SSW of Kure, Japan
M6.8
33 km
50 km
Apr 17, 2024
18 km W of Uwajima, Japan
M6.3
115 km
32 km
Mar 13, 2014
32 km SSW of Hikari, Japan
M6.3
78 km
79 km
Jun 25, 1997
17 km E of Hagi, Japan
M5.9
62 km
10 km
Apr 8, 2018
8 km NNE of ?dach?-?da, Japan
M5.7
112 km
10 km
Aug 28, 1991
9 km SSW of Yasugich?, Japan
M5.5
145 km
13 km
May 22, 1998
9 km NE of Bungo-Takada-shi, Japan
M5.5
101 km
81 km
Jul 12, 2015
12 km SSW of Usuki, Japan
M5.5
148 km
53 km
Oct 8, 2000
32 km N of Sh?bara, Japan
M5.4
119 km
10 km
Sep 3, 1997
21 km S of Yasugich?, Japan
M5.3
136 km
10 km
Mar 25, 2001
22 km WNW of H?j?, Japan
M5.2
39 km
43 km
Oct 28, 1991
13 km SSW of Ube, Japan
M5.2
109 km
17 km
Jul 17, 2021
29 km NE of Kitsuki, Japan
M5.2
85 km
64 km
Apr 15, 2016
11 km WSW of Beppu, Japan
M5.1
141 km
10 km
Apr 2, 1997
34 km WSW of ?zu, Japan
M5.1
103 km
46 km
Apr 26, 2007
15 km ESE of Niihama, Japan
M5.1
117 km
50 km
Jan 3, 1991
22 km W of ?zu, Japan
M5.0
88 km
63 km
Jun 3, 2011
9 km ENE of G?tsuch?, Japan
M5.0
83 km
10 km
Aug 14, 1993
19 km SW of ?zu, Japan
M5.0
103 km
41 km
Feb 26, 2024
18 km N of Yawatahama, Japan
M4.9
74 km
42 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
50 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 3.
Year
Name
Category
Max Wind
Closest
2024
Shanshan
Category 1
86 mph
270 km
2022
Nanmadol
Category 1
86 mph
172 km
2022
Hinnamnor
Category 1
81 mph
285 km
2020
Haishen
Category 2
98 mph
292 km
2019
Francisco
Category 1
81 mph
218 km
2018
Jebi
Category 3
98 mph
217 km
2018
Trami
Category 1
92 mph
231 km
2018
Cimaron
Category 1
92 mph
225 km
2018
Prapiroon
Category 1
69 mph
288 km
2017
Noru
Category 1
69 mph
193 km
2016
Malakas
Category 1
86 mph
201 km
2015
Goni
Category 3
104 mph
148 km
2015
Nangka
Category 1
81 mph
236 km
2014
Phanfone
Category 2
92 mph
299 km
2014
Halong
Category 1
81 mph
172 km
2011
Ma-on
Category 1
86 mph
195 km
2008
Sinlaku
Category 1
75 mph
261 km
2007
Usagi
Category 2
92 mph
91 km
2007
Man-yi
Category 1
81 mph
183 km
2006
Shanshan
Category 1
92 mph
175 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
6 tsunamis recorded within 500 km.
Highest wave on record: 10.0 m (33 ft).
Year
Location
Cause
Max Wave
Deaths
Distance
1026
OFF MASUDA, SHIMANE PREFECTURE
Earthquake
10.0 m
1,001
72 km
1596
BEPPU BAY, KYUSHU
Eruption + Earthquake
8.0 m
708
121 km
1872
SW. HONSHU ISLAND
Earthquake
3.0 m
804
73 km
1715
SEIKAIDO
Earthquake
—
—
121 km
1698
SEIKAIDO-NANKAIDO
Earthquake
—
—
121 km
1597
BEPPU BAY, JAPAN
Eruption + Earthquake
—
40
126 km
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
5 volcanoes within 200 km.
Closest: Abu (66 km).
Name
Type
Elevation
Last Eruption
Distance
Abu
Shield(s)
641 m (2,103 ft)
-6850
66 km
Sanbesan
Stratovolcano
1,126 m (3,694 ft)
650
101 km
Yufu-Tsurumi
Lava dome(s)
1,584 m (5,197 ft)
867
138 km
Kujusan
Stratovolcano(es)
1,791 m (5,876 ft)
1996
163 km
Asosan
Caldera
1,592 m (5,223 ft)
2020
189 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
40°F (4°C)
2.5 in
Coldest
February
40°F (5°C)
3.2 in
March
45°F (7°C)
5.2 in
April
55°F (13°C)
7.2 in
May
63°F (17°C)
7.4 in
June
70°F (21°C)
11.9 in
Wettest
July
77°F (25°C)
10.4 in
August
79°F (26°C)
6.5 in
Warmest
September
72°F (22°C)
8.4 in
October
63°F (17°C)
4.7 in
November
53°F (12°C)
3.4 in
December
44°F (7°C)
2.0 in
Driest
Ōno-hara has a seasonal temperature swing of 39°F / from 40°F in January to 79°F in August. Total annual precipitation is 72.5 inches, with June being the wettest month (11.9") and December the driest (2.0").