Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Nakagawa 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 968 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
968 ft (295 m)
Area
150.8 sq mi (390.7 km²)
Population Density
12/sq mi
Coordinates
37.4717°N, 139.5290°W
Timezone
Asia/Tokyo
Precipitation & Snow
Annual Rainfall62.7"
65% above US avg
Snowfall17.2"
Wettest Month (Jul)7.36"
Driest Month (Mar)3.74"
Air Quality
Earthquake History
981 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M6.6.
Jul 16, 2007
20 km NNW of Kashiwazaki, Japan
M6.6
96 km
12 km
Apr 11, 2011
17 km SSW of Ishikawa, Japan
M6.6
93 km
11 km
Jun 18, 2019
31 km WSW of Tsuruoka, Japan
M6.4
130 km
12 km
Jul 30, 2011
13 km SSE of Iwaki, Japan
M6.3
139 km
38 km
Mar 11, 2011
30 km NNE of Namie, Japan
M6.3
148 km
32 km
Mar 11, 2011
13 km E of Arai, Japan
M6.2
114 km
9 km
Mar 12, 2011
29 km SSE of Namie, Japan
M6.1
146 km
38 km
Mar 11, 2011
17 km ESE of Namie, Japan
M6.0
147 km
49 km
Mar 11, 2011
15 km E of Namie, Japan
M6.0
145 km
37 km
Apr 12, 2011
8 km WSW of Ishikawa, Japan
M5.9
85 km
11 km
Mar 11, 2011
4 km SSW of Namie, Japan
M5.9
129 km
40 km
May 11, 1997
5 km NNE of Iwaki, Japan
M5.9
130 km
49 km
Aug 11, 2011
1 km SSE of Iwaki, Japan
M5.8
130 km
44 km
Apr 16, 2011
6 km ENE of Tanuma, Japan
M5.8
122 km
77 km
Apr 11, 2011
14 km SSE of Marumori, Japan
M5.8
118 km
10 km
Feb 25, 2013
29 km NE of Numata, Japan
M5.8
74 km
10 km
Dec 3, 1996
35 km SE of Muramatsu, Japan
M5.7
5 km
139 km
Jul 16, 2007
16 km NNW of Kashiwazaki, Japan
M5.7
94 km
15 km
Apr 1, 2012
9 km NE of Iwaki, Japan
M5.7
132 km
48 km
Mar 19, 2011
8 km WNW of Daigo, Japan
M5.7
100 km
6 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
21 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 3.
Year
Name
Category
Max Wind
Closest
2019
Faxai
Category 2
92 mph
185 km
2019
Hagibis
Category 1
81 mph
107 km
2018
Jebi
Category 1
81 mph
260 km
2011
Roke
Category 1
86 mph
177 km
2007
Fitow
Category 1
75 mph
210 km
2005
Mawar
Category 2
75 mph
209 km
2004
Ma-on
Category 3
92 mph
190 km
2002
Higos
Category 1
81 mph
138 km
2001
Danas
Category 1
63 mph
142 km
2000
Kirogi
Category 1
81 mph
191 km
1998
Vicki
Category 2
63 mph
115 km
1998
Stella
Category 1
69 mph
142 km
1996
Violet
Category 1
81 mph
256 km
1996
Kirk
Category 1
63 mph
280 km
1995
Ryan
Category 1
40 mph
287 km
1994
Orchid
Category 1
69 mph
253 km
1993
Vernon
Category 1
75 mph
177 km
1990
Flo
Category 1
58 mph
244 km
1985
Irma
Category 1
75 mph
298 km
1981
Thad
Category 1
—
171 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
11 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
105 km
1987
HONSHU ISLAND
Earthquake
0.2 m
—
147 km
2019
NIIGATA
Earthquake
0.1 m
—
131 km
2007
HONSHU: W COAST
Earthquake
—
15
93 km
1802
NW. HONSHU ISLAND
Earthquake
—
19
111 km
1762
NW. HONSHU ISLAND
Earthquake
—
—
101 km
1751
NW. HONSHU ISLAND
Eruption + Earthquake
—
2,100
130 km
1614
NIIGATA PREFECTURE
Earthquake
—
—
135 km
1448
SADO, JAPAN
Earthquake
—
—
117 km
887
NIIGATA
Earthquake
—
2,000
126 km
863
NW. HONSHU ISLAND
Eruption + Earthquake
—
—
141 km
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km.
Closest: Numazawa (5 km).
Name
Type
Elevation
Last Eruption
Distance
Numazawa
Shield
835 m (2,740 ft)
-3400
5 km
Bandaisan
Stratovolcano
1,816 m (5,958 ft)
1888
50 km
Nasudake
Stratovolcano(es)
1,915 m (6,283 ft)
1963
54 km
Hiuchigatake
Stratovolcano
2,356 m (7,730 ft)
1544
61 km
Takaharayama
Stratovolcano
1,795 m (5,889 ft)
-4570
67 km
Adatarayama
Stratovolcano(es)
1,728 m (5,669 ft)
1996
69 km
Azumayama
Stratovolcano(es)
1,949 m (6,394 ft)
1977
70 km
Omanago Group
Lava dome(s)
2,341 m (7,680 ft)
-3050
75 km
Nikko-Shiranesan
Shield
2,578 m (8,458 ft)
1952
76 km
Nantaisan
Stratovolcano
2,486 m (8,156 ft)
-9540
79 km
Akagisan
Stratovolcano
1,828 m (5,997 ft)
Unknown
106 km
Zaozan [Zaosan]
Complex
1,841 m (6,040 ft)
1940
110 km
Shiga
Shield(s)
2,041 m (6,696 ft)
Unknown
125 km
Harunasan
Stratovolcano
1,449 m (4,754 ft)
550
126 km
Kusatsu-Shiranesan
Stratovolcano(es)
2,165 m (7,103 ft)
2018
130 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
Nakagawa 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").