Norwegian text - Klikk på flagget for norsk tekst

THE CLIMATE OF JAN MAYEN

On this page I will put information about the weather and climate on Jan Mayen. The most of the information comes from the The Norwegian Meteorological Institute.

Meteorological stations

Plassering av stajoner

This map points out the location of the different meteorological stations on the island. I have included the Austrian station, because they made complete weather observations every hour through the year they spent in the Maria Musch bay.
We can see the location of "Eldstemetten" (the oldest met. station) in Jamesonbukta, which was built in 1921, evacuated and destroyed after the outbreak of the second world war.
During the period 1941-45 there was a weather station in connection with the Norwegian garrison which defended the island. (And vice versa - the garrison was there so that the allies could get weather information from the island, which was crucial for the convoys and warfare in the Northern Atlantic). I 1945 the station was moved to "Atlantic city" at Nordlaguna, a station set up by US forces to run a HF/DF (High Frequency Direction Finder("Huff Duff")) station there, for finding German automatic weather stations and tracking German U-boats.
I 1949 the meteorological station was moved up to the top of the brink above Atlantic city, and the station we today call "Gamlemetten" (the old met station) was built there.
Today’s station was built in 1962 after a period of overlap between observations from "Gamlemetten" and observations taken in Båtvika (Olonkinbyen), observations were taken regularly at the new met station from autumn 1962. Here it’s still located.
A German automatic weather station (WFL - Wetter Funk Gerät), landed by a U-boat (U-992) in September 1944 was also sending weather information from Jan Mayen until it was picked up by a Norwegian ship and sent to Liverpool in the end of March 1945. The signals from this station however, was not detected by the HF/DF station on Jan Mayen, since it was hidden by Beerenberg, but its signals were picked up on Iceland. The station was located in Krossbukta north of Beerenberg. The location of the station is marked with an "A" on the map.
A slight digression: In a similar operation the Germans landed a weather station on the Labrador coast, this is the only known armed German landing on North American soil in World War II (except for the landing of a few special agents).


 

Current normals for Air-temperature and Precipitation

Period: 1961-1990

Normals 1961-1990
Month Jan. Feb. Mar. Apr. Mai Jun. Jul. Aug. Sep. Oct. Nov. Des.
Mm precipitation 56.0 53.0 55.0 40.0 40.0 35.0 47.0 61.0 82.0 82.0 65.0 65.0
Temperature (ºC) -5.7 -6.1 -6.1 -3.9 -0.7 2.0 4.2 4.9 2.8 0.1 -3.3 -5.2

Normal year precipitation: 681.0 mm   Normal year average temperature: -1.4 ºC

German "Klimadiagramme weltweit" showing temperature and precipitation at Jan Mayen.

 

Max., Min. and Mean Temperature

1922-1999

Max., min. and mean temperature 1922-1999
Month: Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.
Max temp. 7.7 10.0 8.0 9.8 11.3 18.1 15.0 15.7 13.4 15.0 10.0 8.0
- Occurred year: 1992 1965 1984 1984 1954 1953 1927 1939 1934 1961 1953 1997
Min. temp. -26.9 -28.4 -26.8 -21.4 -16.0 -5.1 -3.2 -2.3 -5.0 -18.2 -19.5 -24.2
- Occurred year: 1966 1963 1969 1942 1950 1923 1968 1941 1949 1951 1964 1968
Avg. temp. 1922-99 -4.6 -5.2 -5.1 -3.4 -0.5 2.3 4.8 5.3 3.3 0.3 -2.1 -3.9

It should here be noted that the Austrians between 3 and 4 pm on the 30. of December 1882 measured -30.6 ºC which is the lowest temperature recorded on the island. They also measured -28.6 ºC at 3 am on the 4. of January 1883, which is the lowest recorded temperature for January.


 

Highest and lowest monthly Mean temperatures

1922-1999

Highest and lowest mean monthly temperatures 1922-99
Month: Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.
Highest mean temp. 1.2 0.1 -1.0 0.7 1.7 5.2 6.8 7.7 8.0 4.2 2.2 1.7
- Occurred year: 1947 1929 1923 1930 1936 1930 1924 1934 1934 1938 1954 1938
Lowest mean temp. -11.1 -14.5 -13.4 -7.4 -3.1 0.3 2.2 2.1 0.8 3.5 -8.9 -11.1
- Occurred year: 1966 1943 1968 1973 1968 1951 1968 1943 1964 1968 1971 1987
Mean temp. 1922-99 -4.6 -5.2 -5.1 -3.4 -0.5 2.3 4.8 5.3 3.3 0.3 -2.1 -3.9

 

The monthly mean temperatures recorded by the Austrians 1882-83:
Month: Aug. 82. Sep. 82 Oct. 82 Nov. 82 Dec. 82 Jan. 83 Feb. 83 Mar. 83 Apr. 83 May. 83 Jun. 83 Jul. 83
Mean temp.: 3.1 1.9 2.1 -1.9 -9.6 -7.3 -4.5 -10.3 -2.7 -4.0 1.9 3.5

The values in marked with bold deviates from what later is measured at the Norwegian stations.




Wind


Wind distribution diagram 1961-70 Wind distribution diagram 1971-80
Wind distribution diagram 1981-90 Wind distribution diagram 1991-2000

The wind roses above present joint frequency distributions of wind speed and direction through the year from 1961-2000. The wind direction frequencies are arranged in "petals" aligned with the wind directions, and the wind speed frequencies are shown using varying-width segments of the "petals". Black is above 12 m/s, red is 9-12 m/s, pink is 6-9 m/s, yellow is 3-6 m/s, white is 0-3 m/s. The circles represent distributinon in percentage of the various wind speeds. The number in the middle represents percent calm (less than 1 m/s). For a more extensive explanation of wind roses you can go to www.windpower.org

 

Back to Home page     Back to picture links page      Back to Clickable map

 

Valid HTML 4.01