Velbert's winters are typically chilly, with temperatures often below freezing, but occasional warmer days can bring temperatures up to 12°C in January and 15°C in December. As spring approaches, temperatures gradually rise, with April and May experiencing mild conditions, averaging around 7-12°C. Summer brings warm and stable weather, with June and July averaging a pleasant 19°C, although daytime highs can occasionally reach as high as 34°C. Autumn is generally cooler, with September and October temperatures dropping back to average highs of around 16-17°C, before the winter chill sets in again. Overall, Velbert's climate is characterized by moderate temperature fluctuations throughout the year.