Rumoi, Hokkaido

Rumoi (留萌市, Rumoi-shi) is a city located in Rumoi Subprefecture, Hokkaido, Japan. It is the capital of Rumoi Subprefecture.

Rumoi
留萌市
City
Panorama view of Rumoi, from Senboudai
Panorama view of Rumoi, from Senboudai
Flag of Rumoi
Flag
Official seal of Rumoi
Seal
Location of Rumoi in Hokkaido (Rumoi Subprefecture)
Location of Rumoi in Hokkaido (Rumoi Subprefecture)
Rumoi is located in Japan
Rumoi
Rumoi
Location in Japan
Coordinates: 43°56′N 141°38′E
CountryJapan
RegionHokkaido
PrefectureHokkaido (Rumoi Subprefecture)
Government
 • MayorSadatoshi Takahashi
Area
 • Total297.44 km2 (114.84 sq mi)
Population
 (30 September 2016)
 • Total22,242
 • Density75/km2 (190/sq mi)
Time zoneUTC+09:00 (JST)
City hall address1-11, Saiwaichō, Rumoi-shi, Hokkaidō
077-8601
ClimateDfb
Websitewww.e-rumoi.jp
Symbols
FlowerAzalea
TreeAcacia

As of September 2016, the city has an estimated population of 22,242 and the density of 75 persons per km2. The total area is 297.44 km2.

History

Rumoi was developed by herring fishery and mining.[1]

  • 1869: Rurumoppe was renamed Rumoi.
  • 1877: The village of Rumoi was founded.
  • 1902: The villages of Rumoi and Reuke were merged to form Rumoi Village.
  • 1907: Sandomari village was merged into Rumoi village.
  • 1908: Rumoi village became Rumoi town.
  • 1914: The capital of Mashike Subprefecture was transferred from Mashike to Rumoi and Mashike Subprefecture was renamed Rumoi Subprefecture.
  • 1919: Obirashibe village (now Obira town) was split off.
  • 1945 Rumoi was designated as the site of the proposed Soviet invasion of Hokkaido, with a plan to occupy the island from Rumoi in the west to Kushiro in the east. The plan was cancelled.[2][3][4]
  • 1947: Rumoi town became Rumoi city.
View of Downtown Rumoi from Senbou Hill in night
Andon yatai in Rumoi Dontou Festival on July

Geography

Rumoi is located in the south of Rumoi Subprefecture. Rumoi River flows through the city.

Climate

Rumoi has a humid continental climate (Köppen climate classification Dfb) with warm summers and cold winters. Precipitation is significant throughout the year, but is heaviest from August to December. The highest temperature recorded was 35.6 °C (96 °F) on August 1, 2021.[5]

Climate data for Rumoi (1991−2020 normals, extremes 1943−present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 7.8
(46.0)		 10.9
(51.6)		 16.8
(62.2)		 24.6
(76.3)		 29.3
(84.7)		 32.0
(89.6)		 33.7
(92.7)		 35.6
(96.1)		 33.1
(91.6)		 24.9
(76.8)		 21.2
(70.2)		 14.0
(57.2)		 35.6
(96.1)
Average high °C (°F) −1.0
(30.2)		 −0.4
(31.3)		 3.2
(37.8)		 9.4
(48.9)		 15.4
(59.7)		 19.2
(66.6)		 23.1
(73.6)		 24.6
(76.3)		 21.4
(70.5)		 15.2
(59.4)		 7.8
(46.0)		 1.3
(34.3)		 11.6
(52.9)
Daily mean °C (°F) −4.1
(24.6)		 −3.7
(25.3)		 0.0
(32.0)		 5.5
(41.9)		 11.1
(52.0)		 15.4
(59.7)		 19.6
(67.3)		 20.9
(69.6)		 17.2
(63.0)		 11.1
(52.0)		 4.4
(39.9)		 −1.5
(29.3)		 8.0
(46.4)
Average low °C (°F) −7.4
(18.7)		 −7.4
(18.7)		 −3.5
(25.7)		 1.6
(34.9)		 7.2
(45.0)		 12.3
(54.1)		 16.7
(62.1)		 17.7
(63.9)		 13.1
(55.6)		 6.9
(44.4)		 1.1
(34.0)		 −4.4
(24.1)		 4.5
(40.1)
Record low °C (°F) −23.4
(−10.1)		 −22.8
(−9.0)		 −22.4
(−8.3)		 −10.1
(13.8)		 −2.8
(27.0)		 1.6
(34.9)		 5.0
(41.0)		 7.1
(44.8)		 1.1
(34.0)		 −4.4
(24.1)		 −9.5
(14.9)		 −21.4
(−6.5)		 −23.4
(−10.1)
Average precipitation mm (inches) 95.8
(3.77)		 68.5
(2.70)		 53.5
(2.11)		 43.2
(1.70)		 59.7
(2.35)		 56.3
(2.22)		 113.9
(4.48)		 126.6
(4.98)		 145.4
(5.72)		 131.4
(5.17)		 140.0
(5.51)		 119.9
(4.72)		 1,154.1
(45.44)
Average snowfall cm (inches) 165
(65)		 120
(47)		 75
(30)		 9
(3.5)		 0
(0)		 0
(0)		 0
(0)		 0
(0)		 0
(0)		 0
(0)		 35
(14)		 147
(58)		 546
(215)
Average precipitation days (≥ 1.0 mm) 20.4 16.5 13.0 9.5 8.9 8.1 8.9 9.7 12.7 15.2 18.7 22.0 163.6
Average snowy days 24.7 21.8 17.8 2.6 0 0 0 0 0 0.1 7.7 23.0 97.7
Average relative humidity (%) 77 75 72 72 76 82 85 83 79 74 74 76 77
Mean monthly sunshine hours 48.0 69.7 129.7 174.5 201.2 174.0 169.2 174.4 167.5 124.3 51.9 29.6 1,514
Percent possible sunshine 18 26 39 43 42 40 37 40 47 38 19 11 35
Source 1: JMA[6][7]
Source 2: NOAA (Percent possible sunshine, 1961–1990)[8]

Average wind speed by month

(Annual average: 4.9 m/s or 18 km/h or 11 mph)

Monthm/skm/hmph
January6.1 22 14
February5.3 19 12
March4.9 18 11
April4.8 17 11
May4.2 15 9
June3.5 13 8
July3.4 12 8
August3.8 14 9
September4.5 16 10
October5.8 21 13
November6.5 23 15
December6.5 23 15

Transportation

Rail

Currently, there are no rail lines inside of Rumoi city.

Rumoi was at the end of the JR Hokkaido Rumoi Main Line until April 1st, 2023. It ran to Mashike until 4 December 2016, when the section between Rumoi and there was closed, owing to declining passenger numbers. The sections between Rumoi and Ishikari-Numata were closed on 31 March 2023 due to declining passenger numbers.

Stations in Rumoi: None

The stations of Tōgeshita, Horonuka, Fujiyama, Ōwada and Rumoi closed on 31 March 2023.

The stations of Segoshi and Reuke closed on 4 December 2016.

Road
  • Fukagawa-Rumoi Expressway

Sea
  • Port of Rumoi

Education

High school
  • Hokkaido Rumoi High School

Junior high school
  • Rumoi junior high school
  • Kounan junior high school

Mascot
Kazumo-chan, the city's mascot

Rumoi's mascot is Kazumo-chan (KAZUMOちゃん). She is a 25-year-old kind herring egg who has 1 daughter named Wakako-chan (ワカコちゃん).[9]

Sister city

Russia Ulan-Ude, Buryatia, Russia (since 5 July 1972)[10]

References
  1. The history of Rumoi Archived 2012-09-12 at archive.today
  2. Nimmo, William F (2001). Stars and Stripes Across the Pacific: The United States, Japan, and Asia page 237. ISBN 9780275964535. Retrieved December 18, 2017.
  3. Clark, Gregory (August 22, 2014). "How WWII could have ended". Japan Times. Retrieved December 18, 2017.
  4. Yumashev, Ivan (August 19, 1945). "REPORT BY IVAN YUMASHEV TO ALEKSANDR VASILEVSKY". Retrieved December 18, 2017.
  5. "47406: Rumoi (Japan)". ogimet.com. OGIMET. 1 August 2021. Retrieved 2 August 2021.
  6. 観測史上1～10位の値（年間を通じての値）. JMA. Retrieved February 21, 2022.
  7. 気象庁 / 平年値（年・月ごとの値）. JMA. Retrieved February 21, 2022.
  8. "Rumoi Climate Normals 1961–1990". National Oceanic and Atmospheric Administration. Retrieved December 29, 2012.
  9. "KAZUMOちゃんの部屋". Ruomi Tourism Association.
  10. International exchange of Rumoi Archived 2015-05-29 at archive.today
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