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  • 21 Aug, 2019

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Rumoi, Hokkaido
Rumoi (留萌市, Rumoi-shi) is a city in Rumoi Subprefecture, Hokkaido, Japan.

As of September 2016, the city's population was 22,242 and the density 75 persons per km. The total area is 297.44 km.

History

Rumoi was developed by herring fishery and mining.

  • 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.
  • 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, on the coast of the Sea of Japan. 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.

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)
Mean daily maximum °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)
Mean daily minimum °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
Source 2: NOAA (Percent possible sunshine, 1961–1990)

Average wind speed by month

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

Month m/s km/h mph
January 6.1 22 14
February 5.3 19 12
March 4.9 18 11
April 4.8 17 11
May 4.2 15 9
June 3.5 13 8
July 3.4 12 8
August 3.8 14 9
September 4.5 16 10
October 5.8 21 13
November 6.5 23 15
December 6.5 23 15

Transportation

Rail

Currently, there are no rail services in the city of Rumoi.

Prior to 1 April 2023, Rumoi station, located in the city centre, was the terminus of the JR Hokkaido Rumoi Main Line, which linked the city to Fukagawa. The sections between Rumoi and Ishikari-Numata, including Tōgeshita, Horonuka, Fujiyama, Ōwada and Rumoi station, were closed on 31 March 2023 due to declining passenger numbers. The Rumoi Main Line also formerly ran to Mashike, located southwest of Rumoi, until 4 December 2016, when the Mashike-Rumoi section, including Segoshi and Reuke station, was closed owing to declining passenger numbers.

Road

Fukagawa-Rumoi Expressway connects Rumoi to Dō-Ō Expressway, a major expressway in the prefecture of Hokkaido.

Sea

  • Port of Rumoi

Education

High school

  • Hokkaido Rumoi High School

Junior high school

  • Kounan Junior High School
  • Rumoi 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).

Sister cities

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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