In Seinajoki, Finland, winters are harsh and long, with temperatures frequently dropping below -30°C in January and February, but slowly warming up by March. Spring arrives gradually, with April and May bringing mild temperatures, often above freezing, allowing for some growth of vegetation. Summer is warm to hot, with July being the warmest month, while August starts to cool down slightly. Autumn brings temperatures back down, with September and October experiencing cooler days, but November and December are just as cold as winter, with frequent sub-zero temperatures.