Hilversum's winters are generally mild but chilly, with temperatures often fluctuating between freezing and above-average warmth. The coldest months, January and December, typically see average highs around 3-5°C, while the warmer periods in these months can reach up to 12°C or 14°C. As spring approaches, temperatures gradually rise, with March and April averaging around 6°C, but occasional warm spells can push temperatures into the mid-teens. Summer is the warmest season, with June and July experiencing average highs of around 19-18°C, although occasional heatwaves can see temperatures soar above 25-26°C. Autumn brings a return to cooler temperatures, with October and November averaging around 11-6°C, but occasional warmer periods can still occur.