Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Miyashita 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 823 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
823 ft (251 m)
Area
150.8 sq mi (390.7 km²)
Population Density
10/sq mi
Coordinates
37.4710°N, 139.6422°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
1,193 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M6.6.
Apr 11, 2011
17 km SSW of Ishikawa, Japan
M6.6
85 km
11 km
Jul 16, 2007
20 km NNW of Kashiwazaki, Japan
M6.6
106 km
12 km
Jun 18, 2019
31 km WSW of Tsuruoka, Japan
M6.4
131 km
12 km
Mar 11, 2011
30 km NNE of Namie, Japan
M6.3
139 km
32 km
Jul 30, 2011
13 km SSE of Iwaki, Japan
M6.3
130 km
38 km
Mar 11, 2011
13 km E of Arai, Japan
M6.2
123 km
9 km
Mar 12, 2011
29 km SSE of Namie, Japan
M6.1
136 km
38 km
Mar 11, 2011
17 km ESE of Namie, Japan
M6.0
137 km
49 km
Mar 11, 2011
15 km E of Namie, Japan
M6.0
135 km
37 km
Mar 11, 2011
4 km SSW of Namie, Japan
M5.9
119 km
40 km
May 11, 1997
5 km NNE of Iwaki, Japan
M5.9
120 km
49 km
Apr 12, 2011
8 km WSW of Ishikawa, Japan
M5.9
76 km
11 km
Feb 25, 2013
29 km NE of Numata, Japan
M5.8
78 km
10 km
Aug 11, 2011
1 km SSE of Iwaki, Japan
M5.8
121 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
109 km
10 km
Jul 16, 2007
16 km NNW of Kashiwazaki, Japan
M5.7
104 km
15 km
Apr 13, 2012
24 km ESE of Iwaki, Japan
M5.7
144 km
11 km
Apr 1, 2012
9 km NE of Iwaki, Japan
M5.7
123 km
48 km
Mar 19, 2011
8 km WNW of Daigo, Japan
M5.7
93 km
6 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
20 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
178 km
2019
Hagibis
Category 1
81 mph
99 km
2018
Jebi
Category 1
81 mph
269 km
2011
Roke
Category 1
86 mph
179 km
2007
Fitow
Category 1
75 mph
212 km
2005
Mawar
Category 2
75 mph
204 km
2004
Ma-on
Category 3
92 mph
181 km
2002
Higos
Category 1
81 mph
130 km
2001
Danas
Category 1
63 mph
137 km
2000
Kirogi
Category 1
81 mph
183 km
1998
Vicki
Category 2
63 mph
116 km
1998
Stella
Category 1
69 mph
141 km
1996
Violet
Category 1
81 mph
247 km
1996
Kirk
Category 1
63 mph
290 km
1995
Ryan
Category 1
40 mph
292 km
1994
Orchid
Category 1
69 mph
263 km
1993
Vernon
Category 1
75 mph
167 km
1990
Flo
Category 1
58 mph
251 km
1981
Thad
Category 1
—
169 km
1981
Gay
Category 1
75 mph
268 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
9 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
108 km
2019
NIIGATA
Earthquake
0.1 m
—
132 km
2007
HONSHU: W COAST
Earthquake
—
15
103 km
1802
NW. HONSHU ISLAND
Earthquake
—
19
121 km
1762
NW. HONSHU ISLAND
Earthquake
—
—
108 km
1751
NW. HONSHU ISLAND
Eruption + Earthquake
—
2,100
140 km
1614
NIIGATA PREFECTURE
Earthquake
—
—
145 km
1448
SADO, JAPAN
Earthquake
—
—
127 km
887
NIIGATA
Earthquake
—
2,000
136 km
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km.
Closest: Numazawa (7 km).
Name
Type
Elevation
Last Eruption
Distance
Numazawa
Shield
835 m (2,740 ft)
-3400
7 km
Bandaisan
Stratovolcano
1,816 m (5,958 ft)
1888
41 km
Nasudake
Stratovolcano(es)
1,915 m (6,283 ft)
1963
48 km
Adatarayama
Stratovolcano(es)
1,728 m (5,669 ft)
1996
60 km
Azumayama
Stratovolcano(es)
1,949 m (6,394 ft)
1977
61 km
Takaharayama
Stratovolcano
1,795 m (5,889 ft)
-4570
65 km
Hiuchigatake
Stratovolcano
2,356 m (7,730 ft)
1544
66 km
Omanago Group
Lava dome(s)
2,341 m (7,680 ft)
-3050
76 km
Nikko-Shiranesan
Shield
2,578 m (8,458 ft)
1952
78 km
Nantaisan
Stratovolcano
2,486 m (8,156 ft)
-9540
80 km
Zaozan [Zaosan]
Complex
1,841 m (6,040 ft)
1940
103 km
Akagisan
Stratovolcano
1,828 m (5,997 ft)
Unknown
109 km
Harunasan
Stratovolcano
1,449 m (4,754 ft)
550
131 km
Shiga
Shield(s)
2,041 m (6,696 ft)
Unknown
132 km
Kusatsu-Shiranesan
Stratovolcano(es)
2,165 m (7,103 ft)
2018
137 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
Miyashita 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").