June saw exceptionally low amount of lightning, but high amount of precipitation in the southern part of the country
Photo: Adobe Stock.According to the statistics of the Finnish Meteorological Institute, the average temperature in June was normal, with average temperature in most parts of the country being 0 to 1 degrees below the long-term average. In the northern part of the country, the average temperature varied between 9°C and 12°C, in the southern and central parts of the country between approximately 12°C and less than 15°C. The average temperature for the whole country was 12.3 degrees, which is 0.7 degrees below the long-term average.
There were two hot days in June. Since 1961, there have been fewer hot days in June in four years and the same number in two years. In addition, the number of days with the highest temperature of the day being at least 20 degrees Celsius was lower than usual at observation stations around the country, in many places unusually or even exceptionally low.
The highest temperature in June, 29.0 degrees, was measured at Jämsä Halli Lentoasemantie observation station, on 15 June. The month's lowest temperature, -3.2 degrees Celsius, was measured at Saana Kilpisjärvi, Enontekiö on 20 June.
Precipitation was higher than usual
The precipitation levels for June were higher than usual in many places in the southern and central parts of the country, mainly in North Karelia rainfall remained below the long-term average. In the northern part of the country, precipitation varied on both sides of the long-term average.
Especially in the area extending from Uusimaa to South Karelia, the amount of precipitation in June was unusually high, even exceptionally high in some places. From the long-term observation stations, a June precipitation record was made at Virolahti Koivuniemi observation station.
The location with the greatest amount of precipitation in June was Kotaniemi in Ruokolahti, which saw 188.4 millimetres of rain. The lowest amount of precipitation in June, 24.5 mm, was recorded at the Salla Kelloselkä observation station. The greatest amount of precipitation in a single day was 86.0 millimetres measured at Kotaniemi, Ruokolahti, on 18 June.
Number of sunshine hours lower than usual, amount of lightning record low
The entire country saw a lower number of sunshine hours than usual, even exceptionally low numbers were recorded in some places. In general, the number of sunshine hours was approximately 150 to 290.
In June, 1,751 cloud-to-ground lightnings were observed, which is the smallest number of lightning strikes in June in the lightning statistics starting in the 1960s. The long-term average of cloud-to-ground lightnings in June is approximately 25,100.
For four days at the beginning of June, there was still snow at the Enontekiö Kilpisjärvi village centre observation station, at a maximum of 25 centimetres, but after that there was no snow at any of Finland’s observation stations.
Further information:
Weather statistics from the Climate Service on weekdays, tel. +358 600 1 0601 (€ 4.06/min + local network fee)