April was 1–2 °C warmer than the 1991–2020 average in Finland, with a high of 22.9 °C in Rauma and a low of –23.8 °C in Kilpisjärvi. Sunshine was above average, while southern areas and Lapland saw increased rainfall.
A weather station in Vihti, Southern Finland recorded an unprecedented 18°C on Wednesday, marking the highest reading for this time of year in recorded Finnish history, though colder weather is forecast later in the week.
A warm March has triggered an early spring bloom in Finland with wood anemone and common hepatica appearing ahead of their usual schedule.
Finland’s Arctic Lapland experienced an unseasonably mild February with average temperatures about 7°C higher than normal, while snowfall and precipitation remained below average.
The Finnish Meteorological Institute reports that Finland’s average temperature in the first quarter of the 21st century was 1.4°C higher than during 1975–1999, with January in the south and central regions being unusually mild.