Exceptionally warm autumn in parts of Finland
According to the statistics of the Finnish Meteorological Institute, this autumn (September–November) was unusually or exceptionally warm almost throughout the whole country, with the exception of Lapland. Many observation stations reported this as the second-warmest autumn on record. For example, this was the case at Jokioinen and Maaninka, in Kuopio, which both have nearly a hundred years of records. Utö, with 140 years of records, posted the third-warmest autumn ever.
The average temperature in the autumn varied from about zero degrees in north-west arm of Finnish Lapland to +10 degrees along the country’s southern coast. The deviation of the mean temperature from the 1991–2020 reference period average was about one and a half degrees in Lapland, and over 2 degrees elsewhere. The highest temperature of the autumn, 25.8 degrees, was recorded at the Kärkkä observation station in Salo on 8 September. The lowest temperature, -31.6 degrees, was measured at Enontekiö Airport on 24 November.
Precipitation this autumn was largely normal or slightly higher than normal. The region form Kainuu to Southern Lapland saw significant rainfall, while the rainfall in the area close to the Eastern Border, in North and South Karelia, was less than average. According to preliminary data, precipitation was the highest at the Paljakka observation station in Puolanka, where the precipitation level was 323.6 millimetres during September-November. The lowest precipitation, 98.9 millimetres, was recorded at the Lintupuoliselkä station in Angeli, Inari.
Cold November in Lapland, mild weather elsewhere
The average temperature in November varied from about +6 degrees in the Southwest Archipelago to about −11 degrees in the northwest of Finnish Lapland. The average temperature in Lapland was approximately 2–3 degrees below the average for the 1991–2020 reference period. Elsewhere in Finland, the average temperature was 1–3 degrees higher than normal. The highest temperature of the month, 12.8 degrees, was recorded at the Hammarland Märket observation station on 5 November. The lowest temperature of the month, −31.6 degrees, was recorded at Enontekiö Airport on 24 November.
Precipitation in November was varied. Rainfall was lower than normal in the south and the northern reaches; the middle of the country saw much more rain.
The Koivuniemi station in Virolahti was the exception to the low precipitation in the south, measuring the highest precipitation in November at 161.6 millimetres. The station also measured the highest daily precipitation, 79.0 millimetres, on 16 November. This is also the new record daily rainfall for November in Finland. The previous record was 52.8 millimetres at Sarviluoma station in Isojoki in 1971, which broke clearly here.
Kaamanen in Inari had the lowest amount of precipitation in November at 19.1 millimetres.
November saw snowfall all the way in the south of Finland, but as the last week of November was mild, only Kainuu and Lappi retained a 10–25 centimetre snow cover.
In November, hours of sunshine ranged from one hour at Kevo in Utsjoki to approximately 48 hours at Badhusberget in Mariehamn. Apart from northern Lapland, Finland saw mostly normal hours of sunshine.
Further information:
Weather statistics from the Climate Service on weekdays, tel. +358 600 1 0601 (€ 4.06/min + local network fee)
