Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Karasuyama experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 35°F in January while summers reach 74°F in July. The area gets 242 sunny days per year, above the national average. Annual precipitation totals 51.8 inches (wetter than the 38-inch national average). The area receives 1.3 inches of snow annually. The city sits at an elevation of 390 feet.
Temperature
35°F Jan (2°C)74°F Jul (23°C)
Annual Average
55.0°F
2% above US avg
January Average
35°F (2°C)
July Average
74°F (23°C)
Sunny Days
242 days/yr
Geography
Elevation
390 ft (119 m)
Area
84.3 sq mi (218.4 km²)
Population Density
219/sq mi
Coordinates
36.6500°N, 140.1500°W
Timezone
Asia/Tokyo
Precipitation & Snow
Annual Rainfall51.8"
36% above US avg
Snowfall1.3"
Wettest Month (Sep)7.13"
Driest Month (Jan)1.34"
Air Quality
Earthquake History
3,316 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M7.9.
Mar 11, 2011
47 km E of ?arai, Japan
M7.9
95 km
43 km
May 7, 2008
78 km NE of Hasaki, Japan
M6.9
135 km
27 km
Apr 11, 2011
17 km SSW of Ishikawa, Japan
M6.6
45 km
11 km
Mar 11, 2011
81 km NE of Hasaki, Japan
M6.5
137 km
7 km
Mar 11, 2011
30 km NNE of Namie, Japan
M6.3
150 km
32 km
Jul 30, 2011
13 km SSE of Iwaki, Japan
M6.3
79 km
38 km
Mar 11, 2011
near the east coast of Honshu, Japan
M6.3
150 km
25 km
Jun 1, 1990
near the east coast of Honshu, Japan
M6.3
127 km
67 km
Jun 3, 2000
6 km SE of Narut?, Japan
M6.2
125 km
62 km
May 7, 2008
80 km NE of Hasaki, Japan
M6.2
135 km
19 km
Mar 11, 2011
61 km ESE of Namie, Japan
M6.2
143 km
40 km
Mar 11, 2011
70 km ESE of Kitaibaraki, Japan
M6.2
120 km
40 km
Apr 21, 2011
6 km WNW of T?gane, Japan
M6.2
120 km
43 km
Apr 11, 2011
23 km SE of T?gane, Japan
M6.2
142 km
15 km
Sep 11, 1996
23 km SSE of Hasaki, Japan
M6.2
143 km
55 km
Sep 15, 2011
68 km E of ?arai, Japan
M6.1
115 km
28 km
May 13, 2011
31 km ESE of Namie, Japan
M6.1
134 km
35 km
Aug 5, 1990
43 km E of ?arai, Japan
M6.1
91 km
27 km
Mar 12, 2011
29 km SSE of Namie, Japan
M6.1
112 km
38 km
May 26, 2023
12 km SE of Narutō, Japan
M6.1
129 km
42 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
28 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 3.
Year
Name
Category
Max Wind
Closest
2024
Ampil
Category 3
98 mph
246 km
2024
Jebi
Category 1
75 mph
235 km
2019
Faxai
Category 3
98 mph
85 km
2019
Hagibis
Category 1
92 mph
42 km
2018
Shanshan
Category 1
75 mph
223 km
2016
Lionrock
Category 1
81 mph
235 km
2016
Mindulle
Category 1
75 mph
268 km
2014
Phanfone
Category 1
75 mph
251 km
2011
Roke
Category 1
92 mph
119 km
2007
Fitow
Category 1
81 mph
145 km
2005
Mawar
Category 2
81 mph
105 km
2004
Ma-on
Category 3
92 mph
121 km
2002
Higos
Category 2
86 mph
86 km
2001
Danas
Category 1
69 mph
36 km
2000
Sonamu
Category 1
63 mph
277 km
2000
Kirogi
Category 1
86 mph
104 km
1998
Vicki
Category 2
63 mph
216 km
1998
Stella
Category 1
69 mph
64 km
1996
Violet
Category 1
81 mph
170 km
1996
Dan
Category 1
58 mph
280 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
11 tsunamis recorded within 500 km.
Highest wave on record: 2.0 m (7 ft).
Year
Location
Cause
Max Wave
Deaths
Distance
1670
BOSO, JAPAN
Earthquake
2.0 m
—
149 km
2016
E. COAST HONSHU ISLAND
Earthquake
1.4 m
—
137 km
1938
OFF FUKUSHIMA PREFECTURE
Earthquake
1.3 m
—
143 km
1938
JAPAN TRENCH
Earthquake
0.8 m
—
112 km
1938
SANRIKU
Earthquake
0.8 m
—
126 km
1938
SANRIKU
Earthquake
0.6 m
1
147 km
1982
IBARAKI, JAPAN
Earthquake
0.4 m
—
148 km
1896
KASHIMA, JAPAN
Earthquake
0.3 m
—
78 km
1935
JAPAN
Earthquake
0.2 m
—
112 km
1987
E. HONSHU ISLAND
Earthquake
0.1 m
—
142 km
1855
TOKAIDO
Earthquake
—
6,757
116 km
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km.
Closest: Takaharayama (43 km).
Name
Type
Elevation
Last Eruption
Distance
Takaharayama
Stratovolcano
1,795 m (5,889 ft)
-4570
43 km
Nasudake
Stratovolcano(es)
1,915 m (6,283 ft)
1963
55 km
Omanago Group
Lava dome(s)
2,341 m (7,680 ft)
-3050
60 km
Nantaisan
Stratovolcano
2,486 m (8,156 ft)
-9540
60 km
Nikko-Shiranesan
Shield
2,578 m (8,458 ft)
1952
71 km
Hiuchigatake
Stratovolcano
2,356 m (7,730 ft)
1544
84 km
Akagisan
Stratovolcano
1,828 m (5,997 ft)
Unknown
86 km
Numazawa
Shield
835 m (2,740 ft)
-3400
102 km
Bandaisan
Stratovolcano
1,816 m (5,958 ft)
1888
106 km
Adatarayama
Stratovolcano(es)
1,728 m (5,669 ft)
1996
112 km
Harunasan
Stratovolcano
1,449 m (4,754 ft)
550
118 km
Azumayama
Stratovolcano(es)
1,949 m (6,394 ft)
1977
121 km
Kusatsu-Shiranesan
Stratovolcano(es)
2,165 m (7,103 ft)
2018
145 km
Shiga
Shield(s)
2,041 m (6,696 ft)
Unknown
146 km
Asamayama
Complex
2,568 m (8,425 ft)
2019
148 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
35°F (2°C)
1.3 in
Coldest, Driest
February
36°F (2°C)
2.0 in
March
42°F (6°C)
3.3 in
April
53°F (11°C)
4.3 in
May
61°F (16°C)
5.0 in
June
67°F (19°C)
6.5 in
July
74°F (23°C)
5.9 in
August
76°F (25°C)
6.0 in
Warmest
September
69°F (21°C)
7.1 in
Wettest
October
59°F (15°C)
5.9 in
November
49°F (9°C)
2.8 in
December
40°F (4°C)
1.6 in
Karasuyama has a seasonal temperature swing of 41°F / from 35°F in January to 76°F in August. Total annual precipitation is 51.8 inches, with September being the wettest month (7.1") and January the driest (1.3").